China high quality Oil Free Water Lubricated Direct Driven Industrial Screw Type Air Compressor with Good quality

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Product Description

High-Reliability Low Noise AC Power Cost-Saving Singel Screw Oil Free Water Lubricated 37kw Rotary Screw Type Air Compressor

1. Products Description

1. Latest technology cooperation, high reliability.

2. Oil Cooling Permanent Magnetic Motor.
3. IP55 protection grade & heavy-duty air filter, suitable for the high dusty environment.
4. IE4 Efficiency motor efficiency.
5. Most energy-saving modes, Only work at loading.
6. Wide frequency range 25%-100%.
7. Premium Magnetic material resists more than 180ºC temp.
8. Reliable PM motor supplier from Italy.
9. Direct Taper connection, no transmission power loss, easy maintenance.
10. Touch Screen PLC with preset running schedule, more intelligent control.
11. Both main motor and fan motor are inverter control, more accurate control.
12. Easy for installation and service.
13. Fantastic Energy Saving, save up to more than 30-40%.

2. Technical specification

Model No. Motor Power
(kw / hp)
Free Air Delivery
Noise Level
(L * W * H)mm
7barg 8barg 10barg 12barg
NX-7.5HC 7.5 / 10 1.1 1.0 0.9 0.8 65 940* 650* 830 165
NX-11HC 11 / 15 1.6 1.5 1.3 1.1 68 1080* 750* 1000 310
NX-15HC 15 / 20 2.3 2.2 2.1 1.7 68 1080* 750* 1000 310
NX-22HC 22 / 30 3.5 3.2 3.0 2.7 68 1380* 850* 1160 430
NX-37HC 37 / 50 6.3 6.0 5.6 5 72 1500* 1000* 1330 650
NX-55HC 55 / 75 9.3 9.0 8.5 7.9 75 1800* 1250* 1670 1480
NX-75HC 75 / 100 13 12 10 9.0 78 1800* 1250* 1670 1680
NX-90HC 90 / 120 16 15 14 12 83 2000* 1250* 1670  1680
NX-110HC 110 / 150 21 20 19 17 85 1300* 1470* 1840  1680
NX-132HC 132 / 175 25 24 21 19 85 1800* 1250* 1670 2600
NX-160HC 160 / 200 28 27 23 21 85 2000* 1250* 1670  2700
NX-185HC 185 / 250 31 30 29 27 88 2300* 1470* 1840 2700

3. Company Information
Xihu (West Lake) Dis.ang Compressor was founded in 1985 with over 150 skilled employees and more than 25 R&D engineers teams ‘.We focus on the research & development, manufacture, and energy-saving solutions of screw air compressors to create value for customers and society. In 2015 our total sales volume approached 15 million US dollars. With over 37 years of enhanced experience in designing, producing, and marketing, today our valued customers are over 130 countries.

Germany Standard and 15years of exporting experience help us win more than 50 loyal overseas agents.

Xihu (West Lake) Dis.ang’s primary businesses focus on the following key areas:
Oil-injected rotary screw compressors
Portable screw air compressors
Oil-free air compressors
High-pressure air compressors
Air treatment equipment

At Xihu (West Lake) Dis.ang, we earn our customers’ trust and satisfaction by manufacturing superior quality compressed air
products for all industries. All of our products are designed for reliable performance, easy maintenance, and maximum energy efficiency. We have sales representatives who can speak English, Spanish, French, and Russian which makes it easier for our clients from all over the world to interact and negotiate with us.

Xihu (West Lake) Dis.ang continuously innovates product development and management to meet customers’ demands. The powerful enterprise culture and continuous innovation make CZPT improve rapidly to reach the business principle”Energy Saving First, Mutual Value Shared”. Xihu (West Lake) Dis.ang’s mission is to be a world-renowned high-end brand, with sustainable development, constantly improving its own value and sharing it with our customers and staff. Committed to offering our customers silent and energy-saving manufactured products.

4. Certificates

5. Xihu (West Lake) Dis.ang after-sales service

1.24/7 after-sales service support in English languages.

2. Follow up the feedback of products in 2months intervals by email or call.

3. Guidance of installation and commissioning on-site can be provided by factory-trained technicians or local Authorized Service Center.

4. Technical training for customers in Xihu (West Lake) Dis.ang air compressor factory or working site.

5. Plenty of original spare parts with proven quality are all available from our central stocks in ZheJiang and all distributor depots. 

6. All kinds of technical documents in different languages.

6. RFQ

1. Why do customers choose us?
Xihu (West Lake) Dis.ang compressor with 37years old history, we are specialized in Rotary Screw Air Compressor. Germany Standard and 15years of exporting experience help us win more than 50 loyal foreign agents. We warmly welcome your small trial order for quality or market test.

2. Are you a manufacturer or trading company?
We are a professional manufacturer with a big modern factory in HangZhou, China, with a professional design team. Both OEM & ODM services can be accepted.

3. Where is your factory located? How can I visit there?
Our factory is located in HangZhou City, ZheJiang Province, China. 

4. What’s your delivery time?
380V 50HZ we can deliver the goods within 15days. Other electricity or another color we will delivery within 20-25days, if urgently order, pls contact our sales in advance.

5. How long is your air compressor warranty?
One year for the whole machine and 2 years for screw air end, except consumable spare parts and we can provide some spare parts of the machines.

6. How does your factory do regarding quality control?
Quality is everything. we always attach great importance to quality control from the very beginning to the very end. Our factory has gained ISO9001 authentication and CE certificate.

7. How long could your air compressor be used?
Generally, more than 10years.

8. What’s the payment term?
T/T,L/C,D/P,Western Union,Paypal,Credit Card,and etc.Also, we could accept USD, RMB, Euro, and other currencies.

9. How about your customer service?
24 hours online service available.48 hours problem solved promise.


Choosing an Air Compressor

Considering a new Air Compressor? Here are some tips to make the decision easier. Learn the pros and cons of each type, including the differences between oil-injected and oil-free models, single stage and positive displacement. In addition, learn more about the different technologies that are available for your air compressor. It is important to choose an appropriate unit for the type of work you do. Here are some of the best compressors available today.

Positive displacement

There are several different types of air compressors, but most are positive displacement air compressors. They use a rotary or reciprocating component to compress air. The reciprocating component compresses air by reducing the volume of the chamber. Positive displacement compressors are used in bicycle pumps, chemical plants, and refrigerators. Positive displacement air compressors use multiple inlet ports. Despite the various types, the principle of operation remains the same.
Another type of positive displacement air compressor is a reciprocating piston. The piston inside a cylinder moves up and down, causing the compressed air to fill the upper part of the cylinder. These air compressors are used in a variety of different applications, including blowing bottles and gas pipelines. These air compressors can be water-cooled, lubricated, or non-lubricated. Different types have different capacities and air pressures.
A positive displacement flowmeter uses a rotating chamber that divides continuous fluid into discrete portions. The number of times the chamber is filled and discharged can be used to estimate the flow rate. The rotation speed of the measuring chamber is directly proportional to the flow rate. The drawbacks of this type of positive displacement flowmeter are that it is prone to jamming. If the fluid contains particles, it may be too thick for the meter to determine flow rate.
A negative displacement air compressor was invented in 1860 and is the oldest type of compressor. It uses 2 lobes positioned in a circular cavity. One rotor is connected to an engine, while the other pushes the other 1 to spin in the opposite direction. Negative displacement compressors are low-maintenance, but they do require more precision. They are often used in nuclear power plants because they use the kinetic energy of the rotating elements to produce pressure.


Oil-flooded or oil-injected air compressors use liquid to seal and lubricate moving parts and reduce noise. Oil-flooded air compressors are effective for a variety of pneumatic tools and accessories. Some models have a thermostat that controls the amount of oil used during operation. Other types of oil-flooded air compressors are piston-type models. Here is an overview of the basic differences between these 2 air compressors.
An oil-injected air compressor is more expensive than a comparable oil-free air compressor, but its advantages far outweigh its disadvantages. An oil-free compressor is quieter, requires less maintenance, and has a lower price tag. It also offers a greater degree of air purity. A number of other advantages may also make this type of air compressor the better choice for many industrial settings. If you need a high-pressure compressor in a tight space, consider the benefits of an oil-free system.
Oil-injected air compressors require more maintenance than oil-free models. Both types of air compressors offer similar capacity and ISO 8573-1 Class 0 and 1-2 purity, but the oil-injected systems require more air-treatment components. They require an activated carbon filter and coalescing filter. Oil-injected air compressors will likely remain the standard for industrial air compressors for many years. And since their performance and efficiency are comparable, it may be worthwhile to invest in some point-of-use air treatment.
Both types of air compressors have their benefits. However, choosing between oil-free and oil-injected air compressors is not as straightforward as you might think. Whichever type you choose, make sure it will meet your needs. The benefits of an oil-injected air compressor outweigh their disadvantages. In general, oil-injected air compressors are more durable and can last longer than oil-free models. The only downside is their higher price.


When choosing an air compressor for your company, you’ll need to determine what it is going to be used for. For example, if you’re planning on using it to power multiple workers, you should consider getting an oil-free compressor. An oil-free compressor, on the other hand, is quieter and can power several workers at a time. If you’re a contractor, the most important consideration will be the type of jobs you’ll be doing. Higher air pressure means greater demand for air flow, and more pressure can damage the equipment.
Oil-free compressed air is certified 100% free of contaminants. Technically, oil-free air is not completely free of foreign matter, but it is extremely low within the limits of practical air quality. A technically oil-free air compressor might have a total oil level of 0.003 mg/m3. If you’re in need of a technically oil-free air compressor, you must install an air treatment equipment after your current compressor.
If you’re in the manufacturing industry, a good oil-free air compressor will save you money and reduce your environmental impact. Many of these tools require air compressors to work, and this equipment will ensure that they don’t get contaminated. To buy the best oil-free compressor, you should learn a bit about the different terms used by compressor repair companies. ACFM, for example, is the amount of air that can be compressed in 1 minute at rated conditions.
When you’re using an oil-free air compressor, you should know that the overall life of the device will be much shorter. Compared to an oil-flooded rotary screw air compressor, an oil-free compressor typically has a lifespan of 50 thousand hours. But it’s important to understand that this type of compressor can still cause damage to piping and processes. Therefore, you should choose an oil-free compressor when you need to clean air for your business.


A single-stage air compressor, also known as a piston air compressor, compresses air only once before storing it in a cylinder. This stored air has enough energy to power a variety of pneumatic tools, such as screwdrivers, chisels, and wrenches. These units are also ideally suited for low-flow applications and are widely used in gas stations, auto shops, and various manufacturing plants.
A single-stage air compressor uses 2 valves – 1 for inlet and 1 for outlet – to transfer compressed air. Both valves are actuated by springs. The inlet valve has a slight curvature to provide protection from damage. The compressor’s outlet valve opens when the pressure in the cylinder is higher than the pressure in the storage tank. The piston moves very quickly inside the cylinder, exerting a high amount of force throughout the compression process. This high piston speed is a common cause of compressor wear and tear.
A single-stage air compressor is ideal for smaller tradesmen and small construction crews. Its lightweight and compact design make it easier to transport and store. While it may be tempting to buy the first cheap air compressor you see, it’s important to balance the price against performance to choose the right air compressor for your needs. The best single-stage air compressor is 1 that provides excellent performance and durability. Its two-stage counterpart is designed for larger construction teams and large applications.
The main difference between a single-stage and a two-stage air compressor lies in their capacity. A single-stage air compressor compresses air only once and delivers it into the storage tank, while a two-stage compressor compresses it twice, creating double the pressure. Because of this, single-stage air compressors are cheaper and versatile than their counterparts, which means that they can be used for multiple purposes.


A low-noise air compressor is a type of industrial compressor that is less noisy than regular air compressors. These are generally smaller machines designed for smaller factories and workshops with a few to several employees. They are designed to handle mid-weight volumes of compressed air per day. This type of compressor is especially useful for smaller manufacturing businesses that need to produce compressed air for medical applications. Small breweries can also benefit from the low-noise capabilities of these compressors.
Low-noise air compressors come in various sizes and features. For smaller jobs, you can purchase a one-gallon model that is lightweight and portable. For larger jobs, you can purchase 1 with a larger tank that can provide more pressure for longer jobs. However, a larger tank will make the compressor heavier and harder to transport. To avoid this, make sure to check the size of the tank and how much power it can handle.
Considering a low-noise air compressor for your business? If so, you’ve come to the right place. There are a variety of affordable and dependable low-noise options to choose from. A CAT 10020C, for example, is designed to provide high-volume air to many outlets at once. A CAT 10020C comes with a 10-gallon tank, wheels, and a carrying handle.
Noise levels can also affect the productivity of employees. When employees work with air compressors in close proximity to each other, they may develop tinnitus. If employees are free from tinnitus because of the loud noise, they are likely to work more efficiently. Moreover, it will be easier for them to focus and communicate efficiently. If you need a compressor, a low-noise 1 is an excellent choice.

China high quality Oil Free Water Lubricated Direct Driven Industrial Screw Type Air Compressor     with Good qualityChina high quality Oil Free Water Lubricated Direct Driven Industrial Screw Type Air Compressor     with Good quality

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