Product Description
| Model | BW704 | |
| Voltage/frequency
|
1.220-230V/50/60Hz 2.100-120V/50/60Hz 3.380-440v/50Hz |
1,3 optional |
| Power | KW | 3.12 |
| HP | 4 | |
| Volume flow | L/min @0MPa | 700 |
| L/min @0.7MPa | 220 | |
| Pressure | Bar | 8 |
| MPa | 0.8 | |
| Tank volume | L | 180 |
| US gallons | 47.5 | |
| Noisy | dB | 60 |
| Pressure switch | According to customer’s requirements . | |
| Configuration optional
|
1. Add oil and water separator; 2. Add automatic drainer; 3.Air tank against rust spray |
1,2,3 optional |
| Size | L*W*H cm | 130*48*92 |
| Weight | Kg | 115 |
| Packing | Cartons or wooden cases size cm | Wood 132*50*95 |
| Typical application | |
| For medical devices | Laboratory use |
| Dental treatment chair | For chromatographic analyzer |
| For qualification analyzer | For woodworking |
| For plant gas supply | Hardware and electromechanical |
| For automobile maintenance shop | |
Why choose CZPT air compressor
1. It saves 10-30% energy than the air compressor produced by ordinary manufacturers.
2. It is widely used in medical oxygen generator and ventilator .
3. A large number of high-speed train and automobile application cases, supporting – 41 to 70 ºC, 0-6000 CZPT above sea level .
4. Medium and high-end quality, with more than 7000 hours of trouble free operation for conventional products and more than 15000 hours of trouble free operation for high-end products.
5. Simple operation, convenient maintenance and remote guidance.
6. Faster delivery time, generally completed within 25 days within 1000 PCs.
Machine Parts
Name: Motor
Brand: COMBESTAIR
Original: China
1.The coil adopts the fine pure copper enameled wire, and the rotor adopts the famous brand silicon steel sheet such as ZheJiang baosteel.
2.The customer can choose the insulation grade B or F motor according to What he wants.
3.The motor has a built-in thermal protector, which can select external heat sensor.
4.Voltage from AC100V ~120V, 200V ~240V, 50Hz / 60Hz, DC6V~200V optional ; AC motor can choose double voltage double frequency ; DC Motor can choose the control of the infinitely variable speed.
Machine Parts
Name: Bearing
Brand: ERB , CZPT , NSK
Original: China ect.
1.Standard products choose the special bearing ‘ERB’ in oil-free compressor, and the environment temperature tolerance from -50ºC to 180 ºC . Ensure no fault operation for 20,000 hours.
2.Customers can select TPI, NSK and other imported bearings according to the working condition.
Machine Parts
Name: Valve plates
Brand: SANDVIK
Original: Sweden
1.Custom the valve steel of Sweden SANDVIK; Good flexibility and long durability.
2.Thickness from 0.08mm to 1.2mm, suitable for maximum pressure from 0.8 MPa to 1.2 MPa.
Machine Parts
Name: Piston ring
Brand: COMBESTAIR-OEM , Saint-Gobain
Original: China , France
1.Using domestic famous brand–Polytetrafluoroethylene composite material; Wear-resistant high temperature; Ensure more than 10,000 hours of service life.
2.High-end products: you can choose the ST.gobain’s piston ring from the American import.
| serial number |
Code number | Name and specification | Quantity | Material | Note |
| 1 | 212571109 | Fan cover | 2 | Reinforced nylon 1571 | |
| 2 | 212571106 | Left fan | 1 | Reinforced nylon 1571 | |
| 3 | 212571101 | Left box | 1 | Die-cast aluminum alloy YL104 | |
| 4 | 212571301 | Connecting rod | 2 | Die-cast aluminum alloy YL104 | |
| 5 | 212571304 | Piston cup | 2 | PHB filled PTFE | |
| 6 | 212571302 | Clamp | 2 | Die-cast aluminum alloy YL102 | |
| 7 | 7050616 | Screw of cross head | 2 | Carbon structural steel of cold heading | M6•16 |
| 8 | 212571501 | Air cylinder | 2 | Thin wall pipe of aluninun alloy 6A02T4 | |
| 9 | 17103 | Seal ring of Cylinder | 2 | Silicone rubber | |
| 10 | 212571417 | Sealing ring of cylinder cover | 2 | Silicone rubber | |
| 11 | 212571401 | Cylinder head | 2 | Die-cast aluminum alloy YL102 | |
| 12 | 7571525 | Screw of inner hexagon Cylinder head | 12 | M5•25 | |
| 13 | 17113 | Sealing ring of connecting pipe | 4 | Silicong rubber | |
| 14 | 212571801 | Connecting pipe | 2 | Aluminum and aluminum alloy connecting rod LY12 | |
| 15 | 7100406 | Screw of Cross head | 4 | 1Cr13N19 | M4•6 |
| 16 | 212571409 | Limit block | 2 | Die-cast aluminum alloy YL102 | |
| 17 | 000402.2 | Air outlet valve | 2 | 7Cr27 quenching steel belt of The Swedish sandvik | |
| 18 | 212571403 | valve | 2 | Die-cast aluminum alloy YL102 | |
| 19 | 212571404 | Air inlet valve | 2 | 7Cr27 quenching steel belt of The Swedish sandvik | |
| 20 | 212571406 | Metal gasket | 2 | Stainless steel plate of heat and acidresistance | |
| 21 | 212571107 | Right fan | 1 | Reinforced nylon 1571 | |
| 22 | 212571201 | Crank | 2 | Gray castiron H20-40 | |
| 23 | 14040 | Bearing 6006-2Z | 2 | ||
| 24 | 70305 | Tighten screw of inner hexagon flat end | 2 | M8•8 | |
| 25 | 7571520 | Screw of inner hexagon Cylinder head | 2 | M5•20 | |
| 26 | 212571102 | Right box | 1 | Die-cast aluminum alloy YL104 | |
| 27 | 6P-4 | Lead protective ring | 1 | ||
| 28 | 7095712-211 | Hexagon head bolt | 2 | Carbon structural steel of cold heading | M5•152 |
| 29 | 715710-211 | Screw of Cross head | 2 | Carbon structural steel of cold heading | M5•120 |
| 30 | 16602 | Light spring washer | 4 | ø5 | |
| 31 | 212571600 | Stator | 1 | ||
| 32 | 70305 | Lock nut of hexagon flange faces | 2 | ||
| 33 | 212571700 | Rotor | 1 | ||
| 34 | 14032 | Bearing 6203-2Z | 2 |
FAQ
Q1: Are you factory or trade company?
A1: We are factory.
Q2: What the exactly address of your factory?
A2: Our factory is located in Linbei industrial area No.30 HangZhou City of ZHangZhoug Province, China
Q3: Warranty terms of your machine?
A3: Two years warranty for the machine and technical support according to your needs.
Q4: Will you provide some spare parts of the machines?
A4: Yes, of course.
Q5: How long will you take to arrange production?
A5: Generally, 1000 pcs can be delivered within 25 days
Q6: Can you accept OEM orders?
A6: Yes, with professional design team, OEM orders are highly welcome
Q7:Can you accept non-standard customization?
A7:We have the ability to develop new products and can customize, develop and research according to your requirements
| After-sales Service: | Remote Guided Maintenance |
|---|---|
| Warranty: | 2 Years |
| Principle: | Mixed-Flow Compressor |
| Application: | Back Pressure Type, Intermediate Back Pressure Type, High Back Pressure Type, Low Back Pressure Type |
| Performance: | Low Noise, Variable Frequency, Explosion-Proof |
| Mute: | Mute |
| Samples: |
US$ 630/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
|
|---|

A Buyer’s Guide to Air Compressor Types
There are many types of Air Compressors, and it’s important to understand what each type has to offer. In this article, we’ll discuss single stage air compressors, low-noise compressors, and models with two pistons. But, before you buy an Air Compressor, be sure to read our buyer’s guide to the various types. This way, you’ll have all of the information you need to make the right decision for your business.
Single-stage air compressors
A single-stage air compressor is an excellent choice for most general-purpose purposes. They provide enough power to operate pneumatic tools, and they produce less heat. Single-stage air compressors, however, are not suitable for heavy-duty industrial uses. However, they can be used in various applications, including auto shops, gas stations, and various manufacturing facilities. They are also suitable for borewells and other high-pressure places.
These air compressors are a great choice for home use and are suitable for small-scale businesses, contractors, and small shops. These compressors have continuous duty cycles, cast iron compressor pumps, and a minimum 5,000-hour pump life. They also feature advanced features, including ODP motors, Auto Start & Controls, Receiver tanks, and power cords. They have low maintenance and can save you a great deal of money.
Single-stage air compressors are generally less expensive and lighter than their two-stage counterparts. Single-stage air compressors are also more portable, which is a plus for small projects. While two-stage compressors offer higher CFM, they are more powerful and bulky, making them unsuitable for small or home use. So it is essential to determine what you will use the air compressor for and decide on a model based on your needs.
A single-stage air compressor is made of a piston and a tank. The piston moves rapidly inside the cylinder and exerts pressure on the cylinder. This means that the piston can’t move any faster than the air pressure outside the cylinder. The piston is designed to operate in the same way for each stage. This is a great choice for home shops and one-man automotive shops, as it allows you to control the pressure without sacrificing the pump’s life.
Single-stage air compressors are often cheaper than two-stage versions, but they are not the best choice for every application. If you are only using your air compressor occasionally, you’ll find a one-stage model to be much more reliable than a two-stage model. The main difference between the two types of compressors is in the amount of air that each stage compresses. A two-stage air compressor will have more air storage capacity, but it will still produce more pressure.
Rotary vane compressors
Rotary vane compressors use a centrifugal pump to compress air. The rotor is set eccentrically in the housing, which almost touches the vane. As the rotor turns, the air that enters the pump is trapped between the vanes. This compressed air undergoes compression as the rotor rotates. Vanes are small pieces of carbon fiber or graphite composite. Vanes may be made of different materials depending on the application.
While rotary vane pumps are not commonly used to produce compressed air, they are widely used in automotive and hydraulic applications. Chances are, you have used a rotary vane pump at some point in your life. These pumps are also common in the vacuum and compressed air industries. As a result, many people don’t realize that they’re still around. They feature slots that allow the vanes to slide in and out of the rotor.
A rotary vane compressor has a drum and rotor inside. The rotor is eccentrically positioned and has slots and grooves on its surface. Its inlet and outlet ports are situated off-center, allowing the vanes to be pushed out by centrifugal force. Because the rotor rotates so quickly, air is trapped between the vanes. This air then becomes pressurized by the rotating rotor.
Rotating vane compressors can be easily serviced and repaired. A simple replacement of carbon vanes requires just 15 minutes and common tools. The carbon vanes typically last nine to eighteen months, depending on system operating pressure. Before purchasing a rotary vane compressor, make sure to check whether it has been properly performance-tested and has a warranty. Generally, warranties cover the rotor/stator chambers but do not cover the vanes or air filters. You should also check if the unit is covered by a lightning or water damage warranty.
Rotary vane compressors are an integral part of manufacturing industries. Many pharmaceutical manufacturing facilities depend on rotary vane compressors to control their equipment. Other industries that use rotary vane compressors include the plastics, woodworking, natural gas, and medical & dental fields. Their benefits are numerous and far outweigh any disadvantages of rotary screw compressors. For example, a rotary vane compressor can double the life of a conventional compressor.
Rotary vane compressors with low-noise models
If you are looking for a rotary vane air compressor, you have come to the right place. CZPT’s LV Series rotary vane compressors offer low-noise models, compact size, and robust integration. In addition to their low-noise features, they feature large filter systems to deliver high-quality compressed air. The LV Series models also feature CZPT’s reputation for reliability and quality.
This type of compressor uses centrifugal force to operate and is limited in its top and minimum operating speeds. They are only a third as powerful as screw compressors, and their top speed limits are much lower. Furthermore, the vanes wear out easily at high speeds because there is not enough centrifugal force to seal them against the cylinder’s edges. Even at half their full capacity, they consume as much as 80% of their total energy rating.
Because piston compressors produce a lot of noise, factory owners and shop owners have begun to install noise-dampening cabinets and other solutions. But, rotary vane compressors produce far less noise than a traditional vacuum, and the maintenance costs are also low. Rotary vane compressors are also extremely helpful in several industries. They are used in the automotive and auto finishing industries, as well as in dairy industries and milking machines.
If you have a deep pond, a rotary vane air compressor kit can pump up to 20 feet of water. This is more than enough airflow for two to five diffusers. A 1/4 HP rotary vane kit pumps around 4.2 CFM. It also helps to increase circulation and oxygen levels in the pond. Finally, a 1/4 HP kit offers the necessary power to clean up the bottom of a pond.
The rotary vane and rotary screw are the most popular air compressors today. While they are similar in many ways, they are more versatile and durable than their counterparts. They use fewer angular contact ball bearings and require less frequent maintenance than piston air compressors. Compared to piston air compressors, rotary vane and rotary screw compressors are quieter and are less expensive.
Rotary vane compressors with two pistons
The rotary vane and rotary screw compressors are similar in application, but both have different advantages and disadvantages. This article will compare the benefits of each and highlight the differences between them. While both are commonly used in industrial applications, rotary vane compressors are preferred by many industries. These compressors also have a wide range of uses, ranging from automotive air tool operation to milking machines. These compressors also have the advantage of being quieter than piston-powered ones.
The current common rail position may not be suitable for pressure swirl injectors, but new positions have been tested and show improvements in specific energy values. Moreover, the current position is not required for external oil pumps. However, mass induction and expulsion have to be performed with utmost care. This article focuses on the design and efficiency of rotary vane compressors. You can find more information about this new design in the references mentioned below.
The advantages of this type of compressor are its low cost, compact size, and easy maintenance. Hence, they are preferred in low capacity applications. Moreover, they feature integrated vanes. The rotating vanes close the air gap and compress air towards the outlet. Compared to piston-powered compressors, these units are cheaper and more reliable. Therefore, you should choose one with the lowest price tag. You can also opt for rotary vane compressors that are oil-free.
Sliding vane compressors are another popular variant. They have a single cylinder connected to the compressor and are capable of operating at low speeds. This design also reduces the amount of friction and maintains volumetric efficiency. However, the sliding vane compressors suffer from high frictional losses. If you are looking for a more efficient rotary compressor, this is the best option. While sliding vane compressors have been in the spotlight for over a century, they are still quite young.
These compressors are easy to install and maintain. They are also quieter than piston compressors. They are also cheaper than piston-driven compressors. The energy efficiency and low price make them the perfect choice for any commercial or industrial application. If you’re looking for a small, compact compressor, the rotary vane has been proven to be the best choice for your needs. You should know that it has a long service life.


editor by CX 2023-04-23
China Silent Air Compressor Motor portable air compressor
Solution Description
Silent oil-free of charge air compressor
Silent oil-totally free air compressor adopts oil-cost-free leather-based bowl sleeve piston approach for air compression.
Functioning Theory:
Silent: It belongs to a miniature piston compressor. When the crankshaft of the compressor is driven by the solitary shaft of the motor, it is driven by the connecting rod → the operating quantity formed by the inner wall of the cylinder, the cylinder head and the leading floor of the piston will periodically alter.
Piston motion process of piston compressor:
When starting up to shift from the cylinder head, the working quantity in the cylinder steadily increases
↓
The fuel moves alongside the consumption pipe, pushes the intake valve open up and enters the cylinder until the working volume reaches the maximum, the ingestion valve closes
↓
When the piston of a piston compressor moves in the reverse route, the operating volume in the cylinder decreases and the fuel strain will increase
↓
When the strain in the cylinder reaches and is a bit larger than the exhaust stress, the exhaust valve opens and the fuel is discharged out of the cylinder right up until the piston moves to the limit placement, and the exhaust valve closes.
↓
When the piston of the piston compressor moves in the reverse direction yet again, the earlier mentioned procedure repeats. That is: the crankshaft of the piston compressor rotates once, the piston reciprocates after, and the process of air ingestion, compression, and exhaust is recognized in the cylinder, which completes a operating cycle. The solitary-shaft and double-cylinder composition layout can make the compressor gas stream fee 2 times that of the single-cylinder when the rated speed is constant, and the vibration and sounds handle is properly managed.
Complex PARAMETER
| Model | HV-3 | HV-five |
| Hydrogen flow | -3000ml/min | -5000ml/min |
| Output stress | -.5Mpa | -.4Mpa |
| Pressure steadiness | <0.002MPa | |
| Working sounds | <35dB(A) | |
| Voltage | 220V 50Hz | |
| Power | 175W | 275W |
| Dimension | 420*250*350mm | |
| Bodyweight | 21kg | 22kg |
Attribute:
one. The output air pressure is stable and without fluctuation, which minimizes sounds pollution. It is suited for tests departments this kind of as investigation and tests, supporting laboratories, laboratories of universities, investigation institutes, environmental security, CZPT and epidemic prevention, and so on.
two. No oil
The air compressor solves the problem of oil output from the output gas, simply because it does not want to insert lubricating oil. It is also geared up with a drinking water drain to drain the h2o accrued in the gasoline storage tank in time.
3. Constant flow
The air compressor adopts the latest strain reducing system, and the output air is constant current and stabilized, so that laboratory devices this kind of as atomic absorption have excellent reproducibility in the course of testing.
4. Lengthy provider existence
The air compressor is equipped with a start-up preheating system, the device is outfitted with an external protector, and the within of the tank has been internally sprayed. Not only the air compressor is utilized moderately, but also it is flexible and has a long support daily life.
five. Easy to run
It will save the difficulties of often checking and introducing lubricating oil for oil device and screw air compressor, regular upkeep time is lengthy, and it can run generally following day-to-day electrical power provide. The operation is basic and does not want to be on duty.
Machine Show:
FAQ
Q1: What is your equipment guarantee?
A1: Typically the promise period of time is 1 calendar year, and we will maintain speak to with our clients for following-income service. We’re purpose to create greater devices and let our customers be satisfied.
Q2: How can I get quotation?
A2: Ship your needs and depart your email, we will send out you quotation quickly.
Q3: If we have troubles when utilizing your device, what need to we do?
A3: If you have any issue, just get in touch with us, we will aid you to fix it, and if needed, we will prepare our engineers to aid you in your region.
Q4: What about the shipping and delivery strategies?
A4: For urgent buy and mild weight, you can pick express: FedEx, TNT, DHL or EMS for large bodyweight, you can select by air or by sea to save cost.
Q5: What’s your shipping and delivery time?
A5: Typically we produce inside of 7-15days soon after the payment verified. It is also rely on the equipment, if require to personalize the machine as your need, the creating time is more time.
Q6: Which type of payment technique you can take?
A6: T/T. Western Union, L/C.
|
US $500-1,500 / Piece | |
1 Piece (Min. Order) |
###
| Hydrogen Flow: | 0-5000ml/Min |
|---|---|
| Output Pressure: | 0-0.4MPa |
| Pressure Stability: | <0.002MPa |
| Working Noise: | <35dB(a) |
| Voltage: | 220V 50Hz |
| Power: | 275W |
###
| Model | HV-3 | HV-5 |
| Hydrogen flow | 0-3000ml/min | 0-5000ml/min |
| Output pressure | 0-0.5Mpa | 0-0.4Mpa |
| Pressure stability | <0.002MPa | |
| Working noise | <35dB(A) | |
| Voltage | 220V 50Hz | |
| Power | 175W | 275W |
| Dimension | 420*250*350mm | |
| Weight | 21kg | 22kg |
###
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|
US $500-1,500 / Piece | |
1 Piece (Min. Order) |
###
| Hydrogen Flow: | 0-5000ml/Min |
|---|---|
| Output Pressure: | 0-0.4MPa |
| Pressure Stability: | <0.002MPa |
| Working Noise: | <35dB(a) |
| Voltage: | 220V 50Hz |
| Power: | 275W |
###
| Model | HV-3 | HV-5 |
| Hydrogen flow | 0-3000ml/min | 0-5000ml/min |
| Output pressure | 0-0.5Mpa | 0-0.4Mpa |
| Pressure stability | <0.002MPa | |
| Working noise | <35dB(A) | |
| Voltage | 220V 50Hz | |
| Power | 175W | 275W |
| Dimension | 420*250*350mm | |
| Weight | 21kg | 22kg |
###
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What to Look For When Buying an Air Compressor
An air compressor is a very useful tool that can help you complete many different types of construction jobs. This handy machine makes many tasks much easier, but not all of them are created equally. Understanding what to look for when buying an air compressor will help you make an informed decision. Here are some of the things you should look for. These include price, size, and energy efficiency. Also, make sure to consider the air compressor’s type.
Single-stage air compressors are quieter
When it comes to noise level, single-stage air compressors are the way to go. These machines have fewer moving parts and are quieter than two-stage models. Single-stage air compressors use an axial flow design and can be quieter than their dual-stage counterparts. Single-stage air compressors can run longer and at lower pressures. Single-stage air compressors can be used for light industrial applications. They have a long life expectancy, with some models lasting for over three thousand hours.
While some single-stage air compressors are quieter than two-stage air compressors, both models have noise-reduction features. One type features rubber parts, which are designed to dampen noise. Another feature makes a compressor quieter: its location near the job site. Some models feature rubber base plugs and rubber mats to reduce floor vibrations. In addition to using these features, single-stage compressors are easier to transport.
Noise levels are important when choosing an air compressor. Some machines are too noisy for comfortable work, and some businesses don’t want to expose customers to noise-generating air compressors. Other noise levels can even endanger workers’ health. Single-stage air compressors are more affordable than dual-stage compressors. They are also quieter and more powerful. But be prepared for the noise. Some single-stage air compressors are still noisy.
Compared to their two-stage counterparts, single-stage compressors are quieter when running at full capacity. However, double-stage compressors are quieter on low capacities than single-stage units. Those with variable speed are quietest at lower capacities. The difference is about 10db. If you’re concerned about the noise level, you should consider a two-stage air compressor. But if you have a small workshop, it may not be suitable for you.
One-stage air compressors are generally more efficient than two-stage air compressors. The noise from a two-stage air compressor is lower because there’s no intermediate stage. Single-stage air compressors also use a piston that rotates in a single stage, while dual-stage air compressors, also known as duplex models, are more efficient. A single-stage air compressor is quieter, but double-stage compressors are louder.
Two-stage air compressors are more energy efficient
Two-stage air compressors are more energy-efficient than single-stage machines. The efficiency of two-stage air compressors is increased through a combination of improved efficiency and increased longevity. These machines can store more air and have higher compression ratios. One model of a two-stage compressor can hold approximately 83 cubic feet of air at 100 PSI and 120 cubic feet at 150 PSI. A two-stage compressor is also quieter.
Two-stage air compressors are more energy-efficient because they have two pistons instead of one. These air compressors achieve a higher pressure rating and recover more quickly. This type of compressor is perfect for jobs that require high air pressure for a prolonged period of time. In addition, they can operate multiple tools simultaneously. This makes them better for commercial and industrial use. Listed below are some benefits of two-stage air compressors.
Single-stage air compressors can power tools in the garage or kitchen, but they are not as reliable for industrial applications. Single-stage compressors have larger parts that tend to experience condensation. Furthermore, single-stage compressors do not last long in continuous use and are less energy-efficient than two-stage ones. Whether you’re using the compressor for a single tradesperson, a small crew, or a large construction crew, two-stage compressors are the best choice.
Single-stage air compressors are often used in small-scale food preparation and production. Single-stage air compressors are easy to transport between locations, and can be plugged into several electrical outlets. Single-stage compressors are also ideal for high-volume food processing. A dual-stage air compressor is ideal for industrial use. In some cases, you can even move the single-stage air compressor between two-stage air compressors.
Single-stage compressors often cycle too quickly, drawing more electricity than two-stage units. A variable speed unit stays on a low speed for hours at a time. Single-stage air conditioners force you to lower your thermostat settings while single-stage air conditioners run too often. Both units are energy-efficient but they are not as energy-efficient as variable-speed compressors. The main difference is that single-stage air conditioners tend to drain the power source quicker.
Piston-driven air compressors are quieter
A piston-driven air compressor is one of the quietest types of air compressors. It is less noisy than reciprocating air compressors. A piston-driven air compressor can reach 62 decibels, while a scroll compressor is around half that volume. The two main components of a scroll air compressor are the piston and the helical screw. These air compressors are both very efficient and quiet.
Older compressors are incredibly noisy. They produce a “wumpa” noise similar to a large engine. They are also capable of producing a high-pitched whine. These noises can be deafening, especially in a small workshop. That’s why it’s essential to look for a quiet compressor. But what makes a compressor quiet? Read on to learn more about this essential tool.
Another difference between piston-driven air compressors and electric-driven air compressors is the power source. Electric air compressors produce less noise than gas-powered compressors, which use an engine. Piston-driven air compressors are also more efficient. They also generate less heat, making them an ideal choice for offices and other settings where noise is a problem. The best way to decide between the two types of air compressors is to check the manufacturer’s warranty and read the ‘Description’.
Noise reduction is the first priority of a compressor’s owner, so make sure that you have the right model. If you’re working on something sensitive, don’t place the compressor too close to a building where people might be nearby. Noise can be very disruptive to the workspace and can cause health problems. To help combat noise, you’ll need to buy a quiet air compressor. And don’t forget to consider its location: Piston-driven air compressors are quieter than their reciprocating counterparts.
Piston-driven air compressors are quiet because the piston is made of thin metal and more rubber, which absorbs the sound. Unlike reciprocating air compressors, piston-driven air compressors are more efficient than their dual-piston cousins, which are quieter and more powerful. So which type is right for you? Take a look at some of the main differences between the two. If you want a quiet compressor, make sure it meets the specifications required by the job you’re working on.
Oil-lubricated air compressors are more cost-effective
There are several reasons why oil-lubricated air compressors are more expensive than dry-type air compressors. First of all, oil-lubricated air compressors tend to be more reliable and quiet. Additionally, oil-lubricated air compressors require fewer parts and can last longer than dry-type air compressors. These are just a few of the many benefits of using oil-lubricated air compressors.
Oil-free air compressors have some disadvantages. They are less durable and may not be as efficient as oil-lubricated models. Additionally, because oil-lubricated air compressors use oil, they can get very noisy. While they are less expensive, they are not the best option for heavy-duty work. However, modern oil-free air compressors have soundproofing and are suitable for industrial use.
When purchasing an oil-lubricated air compressor, make sure to choose one with a tank capacity that meets your needs and your space. Larger tanks can be more expensive than small tanks, but larger units are easier to move around. Also, be sure to consider the weight and size of the portable air compressors when making your choice. If the weight is too large, you may have trouble carrying it from place to place.
Another benefit of using oil-lubricated air compressors is their reduced need for oil. These models can last up to a decade longer than oil-free counterparts. Oil-free air compressors are more affordable and can achieve the same high performance as their oil-lubricated counterparts. Many industrial applications benefit from these air compressors. So, which one is right for you? We’ve listed a few of them below.
Another benefit of choosing an oil-lubricated air compressor is the reduced cost of maintenance. This type is more durable than its oil-lubricated counterparts, which require regular oil changes to keep them running smoothly. However, it is not feasible to transport an oil-lubricated compressor, which means that you must install it permanently to keep it working efficiently. In addition, these air compressors are difficult to move and are not portable, which can limit your ability to use it in a pinch.


editor by czh 2022-12-22
China factory CE & IP54 Motor 7.5kw-55kw 100-232psi Industrial High CZPT Saving Silent Oil Free / Less Direct Driven Single Rotary Screw Type Air Compressor Factory with Free Design Custom
Product Description
Product description of Y-air 7.5kw-55kw 100-232Psi industrial High energy saving Silent oil free / less Direct Driven single rotary Screw type Air Compressor
Brief Introduction:
Air end: German Technology. 30 years designed lifetime.
Motor: 100% rare earth permanent magnet motor.
Inverter: Chinese No. 1 inverter can save 30% energy.
Warranty: 5 years for the air end, and 2 years for the whole compressor.
Delivery time: 7-15 days.
After-sales service:we have our professional after-sales technician to instruct the installation of the whole screw air compressor.
We offer free pipe and valves for installation and installation diagram
Advantages
1 . Air end with high-efficiency
2. Double Screw with low noise, Super Silenced Enclosure
3. Elegant compact design. Fully open access door to inner parts for easy service.
4. 100% Continuous duty operation. Load/No Load operation
5. High quality CE Certificate industrial electric motors. ISO,CE,UL Certificate
6. Easy to use and read LCD control panel
7. High temperature, high pressure and anti-rotation shutdown
8. Energy efficient operation
9. 5 micron, water-resistant air filtration material
10. 2 year full machine warranty,5years air end warranty.
11. Supply the machine with different working voltage according to customer’s request,
such as:
220Volt,single phase,60hz/50hz
220Volt,3 phase,60hz / 50hz
380Volt,3phase,50hz
440Volt,3phase,50hz
380Volt,3phase,60hz
Product details of Y-air 7.5kw-55kw 100-232Psi industrial High energy saving Silent oil free / less Direct Driven single rotary Screw type Air Compressor
Main Spare Part of Y-air 7.5kw-55kw 100-232Psi industrial High energy saving Silent oil free / less Direct Driven single rotary Screw type Air Compressor
| Technical Specifications of rotary screw type air compressor | |||||||||||
| Model | Air Flow (m³/min) | Motor Power | Noise | Outlet Diameter | Dimension | Weight | |||||
| 7bar | 8bar | 10bar | 13bar | kw | dB | inch | W*D*H (mm) | kg | |||
| YD-7.5A | 1.0 | 0.8 | 0.5 | 0.4 | 5.5 | 65 | G3/4” | 780*680*800 | 300 | ||
| YD-10A | 1.1 | 1.0 | 0.85 | 0.7 | 7.5 | 65 | G3/4” | 780*680*800 | 320 | ||
| YD-15A | 1.8 | 1.65 | 1.5 | 1.3 | 11 | 65 | G3/4” | 1100*800*980 | 400 | ||
| YD-20A | 2.4 | 2.2 | 2.1 | 1.8 | 15 | 68 | G3/4” | 1100*800*980 | 430 | ||
| YD-25A | 3.1 | 3.0 | 2.7 | 2.3 | 18.5 | 68 | G1” | 1250*870*1180 | 590 | ||
| YD-30A | 3.8 | 3.6 | 3.2 | 2.5 | 22 | 68 | G1” | 1250*870*1180 | 650 | ||
| YD-40A | 5.3 | 5.0 | 4.3 | 3.6 | 30 | 69 | G1” | 1250*870*1180 | 750 | ||
| YD-50A | 6.6 | 6.2 | 5.7 | 4.6 | 37 | 69 | G11/2” | 1540*950*1290 | 880 | ||
| YD-60A | 8.0 | 7.7 | 6.9 | 6.0 | 45 | 70 | G11/2” | 1540*950*1290 | 1000 | ||
| YD-75A/W | 10.5 | 9.8 | 8.7 | 7.3 | 55 | 70 | G2” | 1600*1150*1420 | 1500 | ||
| YD-100A/W | 13.6 | 13.0 | 11.3 | 10.1 | 75 | 72 | G2” | 2571*1260*1460 | 1900 | ||
| YD-125A/W | 16.2 | 15.4 | 13.2 | 11.2 | 90 | 72 | DN50 | 2571*1260*1460 | 2500 | ||
| YD-150A/W | 20.8 | 19.5 | 16.5 | 13.7 | 110 | 73 | DN65 | 2300*1600*1790 | 2800 | ||
| YD-175A/W | 24.0 | 23.0 | 20.0 | 15.5 | 132 | 74 | DN65 | 2300*1600*1790 | 3000 | ||
| YD-220A/W | 27.8 | 26.0 | 23.5 | 19.5 | 160 | 75 | DN80 | 2500*1700*1850 | 3500 | ||
| YD-250A/W | 32.5 | 31.0 | 26.0 | 21.6 | 185 | 76 | DN80 | 2500*1700*1850 | 3800 | ||
| YD-270A/W | 34.5 | 33.0 | 28.0 | 23.5 | 200 | 77 | DN80 | 2500*1700*1850 | 4200 | ||
| YD-300A/W | 38.0 | 36.5 | 32.0 | 27.0 | 220 | 78 | DN100 | 2800*1900*1950 | 4800 | ||
| YD-350A/W | 43.0 | 40.5 | 36.5 | 32.0 | 250 | 80 | DN100 | 2800*1900*1950 | 5200 | ||
| YD-500A/W | 76.0 | 75.3 | 65.4 | 59.0 | 400 | 83 | DN125 | 4200*2200*2240 | 8200 | ||
| Remarks: | |||||||||||
| 1. “A” represents air cooling, and “W” represents water cooling; | |||||||||||
| 2. working ambinent temperature: -5ºC-45ºC; | |||||||||||
| 3. exhausting air temperature ≤ working ambinent temperature +10ºC-15ºC; | |||||||||||
| 4. starting mode: Y-△; | |||||||||||
| 5. exhausting oil content: <3ppm; | |||||||||||
| 6. certificate: CE/ISO9001/ASME; | |||||||||||
| 7. voltage: 380V/220V/400V/440V/415V | |||||||||||
Our Certificates:
1. CE;
2. SGS;
3. ISO9001;
4. 12 patents for screw compressor.
Use case of rotary screw type air compressor
1. Rotary Screw type air compressors are exported to 132 countries and regions all over the world;
2. All indicators of screw air compressor are stable and the failure rate is low;
3. Perfect after-sales service system, engineers on duty 24 hours a day to provide one-on-1 service to customers at the air compressor use site.
Re-factory quality control process:
1.Installation inspection of the whole air compressor: check and confirm the whole machine according to the operation instructions and quality control standards. Main inspection items:
A . Confirm the nose and motor nameplates;
B . Check whether there is oil leakage in the pipeline and oil circuit of the air compressor; C . the air compressor machine screw locking inspection..
2. Rotary screw type air compressor factory test machine, heat engine: test whether the air compressor operation parameters meet the requirements of customers, including voltage, current, working pressure, exhaust volume, etc.Air compressor factory before 48 hours of thermal test, stability confirmation.
3. 24 hours online after-sales service, one-to-1 online guidance installation, debugging, troubleshooting.
F.A.Q
Q1. Why do customers choose us?
Yunshun Electric Machinery Co., Ltd. is a company specializing in screw air compressor for 18 years since 2001. Our German Standard production line helps us get the affirmation from our agents as well as end-user clients.
Q2. Are you a manufacturer or trading company?
We are a professional manufacturer with big modern factory in HangZhou,China.
Both OEM & ODM service can be accepted.
Q3. What’s your delivery time?
Generally 7-15 days, if urgent order, we can arrange, too.
Q4. How long is your air compressor warranty?
2 year for the whole machine and 5years for screw air end, except consumable spare parts.
Q5. How long could your air compressor be used for?
At least 10 years.
Q6. What’s payment term?
T/T, L/C, Western Union, Credit Card, and etc.
Q7. How about your customer service?
24 hours on-line service for all our clients.
Q8. How about your after-sales service?
1. Providing customers with installation online instructions.
2. Well-trained engineers available to overseas service.
3. PlHangZhou for oversea after-sales supporting company.
what to see in an air compressor
If you need to buy an air compressor, you should know what to look for. The types of air compressors on the market are classified according to their CFM rating, safety devices, and pumps. There are several differences between lubricated and oil-free air compressors that you should know before buying. To better understand the difference between these types of air compressors, read on. This article will guide you through these differences.
Pump
If you are looking for a quality air compressor, you have come to the right place. A good air compressor pump will provide high pressure for anything from tires to boats and more. There are hundreds of different models to choose from, and the great thing about buying 1 from a Chinese manufacturer is that they have so many options. More importantly, Chinese manufacturers can customize air equipment such as air compressors at low prices.
A good quality air pump won’t break easily, but you’ll be able to use it for years. Choosing a high-quality pump will help you avoid many hassles on the road, such as unplanned downtime and installation costs. Plus, a pump from the same manufacturer as your air compressor is your best bet to ensure optimum performance. Listed below are some tips for finding a quality pump for your air compressor.
The air compressor is an important but unremarkable invention. Without them, our lives would be completely different. Without a pump, we can’t get hot water from central heating, nor can we get heat from the refrigerator. We can’t inflate bicycle tires, and we can’t refuel cars. Pumps are vital to all kinds of machines. So why is it important to choose the right product? The answer may surprise you.
Different types of pumps are used for different applications. Positive displacement pumps move a fixed volume of fluid and direct it to a drain. This design ensures constant flow at a constant speed regardless of discharge pressure. Centrifugal pumps work differently. The impeller accelerates the fluid, converting the input energy into kinetic energy. This type of pump is most commonly used in mines, air conditioning, industrial plants, and flood control.
safety equipment
There are several safety features you should check when using an air compressor. First, check the connection of the air filter to the air. If they come loose, parts may separate and cause injury. Another important safety feature is the shut-off valve. When working near compressed air, the shut-off valve should be within easy reach and visibility. Moving parts and other equipment must be protected with protective covers. Check safety valve and replace damaged parts.
Rupture discs are copper discs located on the air cooler. When the air pressure exceeds a certain limit, it bursts. Fusible plugs contain materials that melt at high temperatures. The compressor should have a lubricating oil pressure alarm and cut off the trip signal. If these 2 safety devices fail, the compressor should be stopped immediately. The rupture disc should be inspected at least weekly to ensure it does not rupture under pressure.
If the pressure level is too high, and overcurrent protection device cuts power to the motor. It also automatically shuts off the compressor when the hose ruptures or the air volume exceeds a preset level. The device should be installed on the air compressor to prevent accidents. Its job is to protect the operator from harm. If employees do not follow these safety measures, they may cause equipment damage.
To ensure safety when operating the air compressor, safety glasses and gloves should be worn. Pressurized air can cause eye injury, and crash goggles can provide a barrier to prevent this. Additionally, the self-retracting cord prevents trip hazards and reinforces excess cord. You should also keep your hands and body away from the air nozzle. This will prevent you from being sprayed with compressed air.
CFM Rating
An air compressor’s PSI and CFM ratings indicate the pressure and volume it can deliver. PSI stands for pounds per square inch and measures the force and pressure contained in 1 square inch of air. These 2 indicators are equally important when choosing an air compressor. If you need a lot of compressed air for a specific application, you will need a higher psi compressor. Likewise, if you are using compressed air in a smaller application, a low cfm compressor will not provide enough power to meet your needs.
When comparing different air compressors, be sure to pay close attention to horsepower and CFM ratings. While compressor power is essential for some tasks, it is not the most important aspect. The CFM rating of an air compressor will determine how big a project it can handle and how long it takes to charge. Make sure you understand the CFM and PSI ratings of your future compressors, as not knowing these important statistics can frustrate you and drive up costs.
In general, it is best to choose an air compressor with a CFM rating higher than the size of the air tool. This will ensure that the air compressor has enough pressure to work multiple tools efficiently at the same time. While smaller CFM ratings may be sufficient for smaller projects, larger tools such as drills require a lot of air. Therefore, the higher the CFM, the larger and more powerful the tool.
Once you understand the CFM of an air compressor, you can start looking for the right tool. You can check the CFM rating of your air compressor online by commenting below. If you’re not sure about the size of your air tool, you can always buy a second air compressor. This is a great way to double the CFM of your air compressor! You’ll have more air to do more work, and your compressor will last longer.
Lack of oil and lubrication
Oil-free air compressors have a smaller footprint and require less maintenance than oil-lubricated air compressors. Although oil-lubricated air compressors are more expensive and heavier than oil-free air compressors, they are also ideal for stationary use. The benefits of oil-free air compressors include greater durability and lower maintenance costs. The advantages and disadvantages of each type are discussed below.
Oil-free air compressors are generally quieter than oil-lubricated air compressors. However, you may still experience some noise while using it. To avoid this, you should choose a quiet intake compressor. However, if you work next to a noisy compressor, you should buy a muffler, an aftermarket filter that reduces compressor noise.
If you want to use the air compressor for a long time, the oil-free model is not the right choice. Its Teflon coating wears off over time, especially at extreme temperatures. Additionally, oil-free air compressors have a large number of moving parts that require regular maintenance, while oil-filled air compressors are great for those who don’t want to invest in extra parts.
Another major difference between oil-free and oil-lubricated air compressors is lubrication. Oil-lubricated air compressors require regular lubrication whereas oil-free air compressors are pre-lubricated. They have fewer parts and are cheaper. Oil-free air compressors are lighter than oil-lubricated air compressors. In addition to being more affordable, oil-free air compressors are more powerful and durable.
While oil-filled air compressors are more efficient and durable, they generate a lot of heat. However, they are also more expensive and require regular oil changes. Furthermore, they are difficult to transport. They also need to be permanently installed. These air compressors are also not portable and require a fixed location. So, consider your needs before deciding which type is best for you. When you’re choosing an air compressor for your business, be sure to shop around.
noise level
If you are wondering what the noise level of an air compressor is, the answer depends on your specific equipment and working environment conditions. Typically, air compressors produce 40 to 90 decibels of noise. Although the lower the decibel level, the quieter the compressor will be. Larger, more powerful air compressors produce higher noise levels than their little brothers. But no matter how big the air compressors are, it’s a good idea to wear hearing protection while working around them.
When purchasing a new air compressor, the noise level of the air compressor should be considered. While this may seem like a small problem, there are actually a lot of variations on these noisy machines. The most common type of air compressor is the reciprocating piston pump. This model uses pistons similar to an engine to rotate inside a chamber. The piston moves quickly and traps air proportional to its size. Single-piston air compressors are generally noisier than twin-piston models, also known as twin cylinders.
But even if you have the proper equipment to protect your hearing, it’s still important to know the noise level of an air compressor. Even if the noise is not immediately dangerous, it can still cause temporary or permanent hearing loss. This condition is called noise-induced hearing loss, and an air compressor with a sound level of 80 or higher can cause permanent hearing damage. You can avoid potential damage to your hearing and prevent accidents by simply paying attention to the noise level of your air compressor.
Air compressors are inherently noisy, but if you take steps to reduce their noise levels, you can minimize disruption to neighbors and co-workers. For example, installing a sound enclosure in your work area can prevent your air compressor from making as much noise as before. Depending on your workspace, you can also try installing a long air hose, which will reduce sound levels by up to 25%.

