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China Industrial 15kw/22kw/37kw/55kw/75kw Oilless Energy Saving Pm Motor VSD/VFD Rotary Screw Air Compressor Energy Saving45% OEM air compressor repair near me

Merchandise Description

Industrial 15kw/22kw/37kw/55kw/75kw Oilless Vitality Saving Pm Motor VSD/VFD Rotary Screw Air Compressor, Power Conserving 45%,OEM Provided 

   
     

Technological knowledge

Model Power
(kw)
Pressure
(bar)
Air flow
(m³/min)
Noise Stage Exit pipe
diameter
Boundary dimension Total Weight
(kg)
 Length   Width   Top(mm)
WZS-10EVA 7.five eight one. 60±2 single phase  3/four 800 750 1000 200
10 .8
WZS-15EVA 11 8 1.8 62±2 single stage 1    1200 850 1300 260
ten one.6
WZS-20EVA 15 8 2.two 63±2 single stage 1    1200 850 1300 380
10 1.eight
WZS-30EVA 22 eight three.8 66±2 single stage 2.75 1200 800 1300 420
10 3. 1380 850 1150 460
WZS-40EVA 30 eight 5. 68±2 single stage 2.75 1380 850 1150 600
10 4.4
WZS-50EVA 37 eight six.two 66±2 single phase 2.seventy five 1300 one thousand 1450 seven hundred
10 5.4 1600 1000 1550 750
WZS-60EVA 45 eight 8. 68±2 single stage 2.seventy five 1600 1000 1370 780
10 six.8
WZS-75EVA 55 8 10.five 69±2 single stage 2.seventy five 1800 1270 1550 1350
ten eight.5
WZS-100EVA 75 eight 13.2 70±2 single phase 2.seventy five 2050 1270 1550 1470
ten eleven.6
WZS-125EVA 90 8 sixteen. 70±2 single stage 2.seventy five 2150 1100 1500 1750
ten 14.
WZS-150EVA 110 8 20.5 71±2 single stage DN65 2750 1750 1900 2600
10 17.3
WZS-180EVA 132 8 22. 72±2 single phase DN80 2750 1750 1900 2880
10 20.one
WZS-220EVA 160 8 27. 75±2 single phase DN100 2950 1800 1850 3200
10 24.five
WZS-250EVA 185 8 30.4 85±2 single stage DN100 3000 2000 2100 3500
ten 28.six
WZS-270EVA 200 eight 33.five 85±2 single phase DN100 3000 2000 2100 3650
10 31.
WZS-300EVA 220 eight forty.five 85±2 single stage DN125 3200 2100 2450 3800
ten 36.five
WZS-340EVA 250 eight forty three.five 85±2 single phase DN125 3200 2100 2450 4200
ten 39.five

FAQ

one.  OEM/ODM, or customer’ s brand printed is available?

     Yes, OEM/ODM, customer’s symbol is welcomed.

2.  Delivery date?
     Usually 5-twenty five doing work days right after obtaining deposit, particular shipping and delivery date based on purchase quantity.
 

three.  What’s your payment phrases?

     Regularly undertaking thirty% deposit and 70% equilibrium by T/T, Western Union, Paypal, other payment phrases also can be reviewed based on our  cooperation.
 

4.  How to control your quality?

     We have skilled QC staff, control the quality for the duration of the mass manufacturing and inspect the products prior to shipping.
 

five.  If we don’ t have delivery forwarder in China , would you do this for us?

     We can provide you ideal shipping line to make sure you can get the merchandise timely at best value.
 

6.  I in no way appear to China ahead of , can you be my CZPT in China?

     Sure , I’m glad to be your CZPT because our company immediately situated in ZheJiang , in which is the most popular city in China, if you want to come China then we are happy to offer you one particular-end support, such as reserving ticket, finding up at the airport, scheduling hotel, accompany browsing manufacturing facility. It gonna make you an unforgettable memory.

Marketing and advertising Network

US $1,000-10,000
/ Unit
|
1 Unit

(Min. Order)

###

After-sales Service: Video Technical Support
Warranty: Unit 1 Year, Air End 2 Years
Lubrication Style: Oil-less
Cooling System: Air Cooling
Power Source: AC Power
Structure Type: Closed Type

###

Customization:

###

Model Power
(kw)
Pressure
(bar)
Air flow
(m³/min)
Noise Stage Exit pipe
diameter
Boundary dimension Total Weight
(kg)
 Length   Width   Height(mm)
WZS-10EVA 7.5 8 1.0 60±2 single stage  3/4 800 750 1000 200
10 0.8
WZS-15EVA 11 8 1.8 62±2 single stage 1    1200 850 1300 260
10 1.6
WZS-20EVA 15 8 2.2 63±2 single stage 1    1200 850 1300 380
10 1.8
WZS-30EVA 22 8 3.8 66±2 single stage 2.75 1200 800 1300 420
10 3.0 1380 850 1150 460
WZS-40EVA 30 8 5.0 68±2 single stage 2.75 1380 850 1150 600
10 4.4
WZS-50EVA 37 8 6.2 66±2 single stage 2.75 1300 1000 1450 700
10 5.4 1600 1000 1550 750
WZS-60EVA 45 8 8.0 68±2 single stage 2.75 1600 1000 1370 780
10 6.8
WZS-75EVA 55 8 10.5 69±2 single stage 2.75 1800 1270 1550 1350
10 8.5
WZS-100EVA 75 8 13.2 70±2 single stage 2.75 2050 1270 1550 1470
10 11.6
WZS-125EVA 90 8 16.0 70±2 single stage 2.75 2150 1100 1500 1750
10 14.0
WZS-150EVA 110 8 20.5 71±2 single stage DN65 2750 1750 1900 2600
10 17.3
WZS-180EVA 132 8 22.0 72±2 single stage DN80 2750 1750 1900 2880
10 20.1
WZS-220EVA 160 8 27.0 75±2 single stage DN100 2950 1800 1850 3200
10 24.5
WZS-250EVA 185 8 30.4 85±2 single stage DN100 3000 2000 2100 3500
10 28.6
WZS-270EVA 200 8 33.5 85±2 single stage DN100 3000 2000 2100 3650
10 31.0
WZS-300EVA 220 8 40.5 85±2 single stage DN125 3200 2100 2450 3800
10 36.5
WZS-340EVA 250 8 43.5 85±2 single stage DN125 3200 2100 2450 4200
10 39.5
US $1,000-10,000
/ Unit
|
1 Unit

(Min. Order)

###

After-sales Service: Video Technical Support
Warranty: Unit 1 Year, Air End 2 Years
Lubrication Style: Oil-less
Cooling System: Air Cooling
Power Source: AC Power
Structure Type: Closed Type

###

Customization:

###

Model Power
(kw)
Pressure
(bar)
Air flow
(m³/min)
Noise Stage Exit pipe
diameter
Boundary dimension Total Weight
(kg)
 Length   Width   Height(mm)
WZS-10EVA 7.5 8 1.0 60±2 single stage  3/4 800 750 1000 200
10 0.8
WZS-15EVA 11 8 1.8 62±2 single stage 1    1200 850 1300 260
10 1.6
WZS-20EVA 15 8 2.2 63±2 single stage 1    1200 850 1300 380
10 1.8
WZS-30EVA 22 8 3.8 66±2 single stage 2.75 1200 800 1300 420
10 3.0 1380 850 1150 460
WZS-40EVA 30 8 5.0 68±2 single stage 2.75 1380 850 1150 600
10 4.4
WZS-50EVA 37 8 6.2 66±2 single stage 2.75 1300 1000 1450 700
10 5.4 1600 1000 1550 750
WZS-60EVA 45 8 8.0 68±2 single stage 2.75 1600 1000 1370 780
10 6.8
WZS-75EVA 55 8 10.5 69±2 single stage 2.75 1800 1270 1550 1350
10 8.5
WZS-100EVA 75 8 13.2 70±2 single stage 2.75 2050 1270 1550 1470
10 11.6
WZS-125EVA 90 8 16.0 70±2 single stage 2.75 2150 1100 1500 1750
10 14.0
WZS-150EVA 110 8 20.5 71±2 single stage DN65 2750 1750 1900 2600
10 17.3
WZS-180EVA 132 8 22.0 72±2 single stage DN80 2750 1750 1900 2880
10 20.1
WZS-220EVA 160 8 27.0 75±2 single stage DN100 2950 1800 1850 3200
10 24.5
WZS-250EVA 185 8 30.4 85±2 single stage DN100 3000 2000 2100 3500
10 28.6
WZS-270EVA 200 8 33.5 85±2 single stage DN100 3000 2000 2100 3650
10 31.0
WZS-300EVA 220 8 40.5 85±2 single stage DN125 3200 2100 2450 3800
10 36.5
WZS-340EVA 250 8 43.5 85±2 single stage DN125 3200 2100 2450 4200
10 39.5

Choose an Air Compressor for Your Business

There are several factors to consider when choosing an air compressor for your business. One factor to consider is the type of compressor you are looking for, which may include single-stage, low noise, and positive displacement. Hope this article helps you make the right decision. After all, your business success will depend on this device! Let’s take a closer look at these factors. Also, consider what compressor manufacturers say about their products.
air-compressor

Positive displacement

Positive displacement air compressors compress air by drawing in a volume from an inlet and extruding it out of a chamber. This increases the pressure at which the gas can be pumped at rates that cannot be pumped through the outlet at lower pressures at higher mass flow rates. These types of compressors are available in single-acting and double-acting configurations. They are classified by the number of cylinders.
There are two different types of air compressors: reciprocating air compressors and screw compressors. Both are roll machines. Positive displacement air compressors use pistons and cylinders to compress air. The resulting air pressure builds up within the compressor housing, increasing the potential energy of the compressed air. Screw air compressors are the most popular positive displacement air compressors, which can be either single-stage screw-blade air compressors or multi-stage screw-blade oil-immersed screw air compressors.
Positive displacement flowmeters use a rotating measuring chamber to divide the fluid into discrete quantities. The number of times the chamber was refilled and emptied was used to estimate the total flow. However, positive displacement flow meters are prone to leaks, reducing the accuracy of the estimates. If a leak occurs, it can cause false readings and damage the compressor. However, leaks in positive displacement air compressors can reduce pressure.
The most common types of positive displacement air compressors are screw, reciprocating, and vane. Rotary positive displacement air compressors are also available as well as many other air compressors. Positive displacement air compressors are most commonly used in large manufacturing facilities. If you are considering an air compressor for commercial or industrial applications, it is imperative to understand how the components of the unit work. Please read the information below to learn more before deciding which application is best for you.
Positive displacement air compressors use a piston to force air into a chamber, compressing the air in the process. The piston moves in the opposite direction, thereby reducing the volume of the chamber. When the amount of air in the chamber reaches its maximum value, the valve opens, allowing it to escape at higher pressure. Positive displacement air compressors are generally less efficient than centrifugal compressors. However, they are still an excellent choice for a variety of applications.
air-compressor

Single-stage

The discharge pressure of the single-stage air compressor is used to control the operation of the compressor. Properly designed load/unload controls allow the air compressor to operate at its most efficient point while minimizing stress on the main engine bearings. Single-stage air compressors can approach variable speed efficiency with appropriate storage capacity. However, improper storage can cause premature bearing wear on the main unit. If this is the case, a single-stage air compressor may not be ideal.
A single-stage air compressor has only one cylinder, which means one stroke is required to move air from one cylinder to another. Pressure is measured in cubic feet per minute or CFM. Tank size is also important as a large single-stage air compressor may be required to operate multiple air tools. Single-stage air compressors can be used in a variety of applications and can last for years.
For the most common uses, single-stage air compressors are the most practical option. These devices work with most hand tools, from hammers to grinders. Single-stage air compressors are lightweight and easy to move. However, two-stage air compressors provide more CFM, making them a better choice for industrial or commercial use. However, two-stage compressors are not suitable for private use. Therefore, if your main purpose is DIY and craft projects, it is better to choose a single-stage air compressor.
Compared with two-stage air compressors, single-stage screw air compressors are cheaper. They come from a variety of manufacturers and range in power from 3 to 600 horsepower. Single-stage air compressors are a cost-effective solution for a variety of air compressor needs. They offer flexibility and multiple control methods, making them an excellent choice for many different applications. Therefore, when choosing an air compressor for your business, choose the one with the most suitable functions.
Single-stage air compressors are the most affordable and easy-to-use air compressors for small to medium jobs. They also have higher compression ratios. The compression ratio is the ratio of absolute discharge pressure to absolute inlet pressure. When calculating the ratio, it takes into account atmospheric pressure and gauge pressure. The compression ratio pushes the surface area of ​​the rotor, which increases the thrust load.
Single-stage air compressors are smaller and easier to transport than two-stage units. Single-stage air compressors have one air intake, and two-stage air compressors have two air intakes. The difference between single-stage and two-stage air compressors largely depends on the number of times the air is compressed. A single-stage air compressor compresses the air once, while a dual-stage air compressor compresses the same amount of air twice.
air-compressor

low noise

Low noise air compressors are ideal for a variety of applications. While no air compressor is completely silent, some models are much quieter than others. For the Hitachi EC28M portable compressor, the noise level is 59 decibels. The compressor features steel rollers that protect the internal components and give it a sleek, modern look. It also has a one-gallon fuel tank and a half-horsepower drive.
Noise from air compressors can be distracting and reduce productivity. It is important to choose low-noise air compressors to keep employees healthy and happy at work. While noise is an unfortunate aspect of working on the shop floor, reducing it can improve productivity. By reducing distracting noise, employees can focus on their work and communicate more effectively. That means higher quality work and happier clients. If you’re looking for a low-noise air compressor, be sure to read the tips below.
Low noise air compressors are an excellent choice for businesses of all sizes. These powerful tools can run multiple tools simultaneously. The two water tanks are made of rust-resistant aluminum and are stackable. This air compressor is heavier and can handle large jobs with ease. It costs more than other air compressors, but it can handle a lot of work efficiently. CZPT Air Tools air compressors come with a one-year warranty and are highly recommended by contractors.
Noiseless air compressors are generally more expensive than comparable products, but they are worth the extra cost. Noiseless compressors are a good option for businesses that need to avoid disturbing nearby people. For example, you might want to consider a low-noise air compressor for a dental office, which cannot tolerate noise. Fortunately, this problem can be solved by relocating the compressor to a location that is more isolated from your workspace.
One brand of low-noise air compressors offers two models. The CZPT Air Tools 2010A features a large cast aluminum can, regulating pressure gauge, and two universal quick-connects. It produces 68 decibels of noise when it works. It has a large 8-gallon fuel tank capacity and has wheels and handles for easy transport. Its powerful engine produces a low noise level of 68 decibels.
Another popular low noise air compressor is the Makita MAC210Q Quiet Series. This model is capable of producing up to 71.5 decibels of sound, which is the amount of air it produces at 90PSI. The MAC210Q features a durable oil-free pump and weighs just 36 pounds with a handle and wheels. These compressors are easy to move and ideal for indoor work.
China Industrial 15kw/22kw/37kw/55kw/75kw Oilless Energy Saving Pm Motor VSD/VFD Rotary Screw Air Compressor Energy Saving45% OEM     air compressor repair near meChina Industrial 15kw/22kw/37kw/55kw/75kw Oilless Energy Saving Pm Motor VSD/VFD Rotary Screw Air Compressor Energy Saving45% OEM     air compressor repair near me
editor by czh 2022-12-19

China Professional High Efficiency Save Power 40% Stable Mute 11kw 15HP Variable Frequency/Speed Industrial Rotary Screw Air Compressor ZL-15A-PM with Pm Motor with high quality

Product Description

High Efficiency Help save Electrical power 40% Secure Mute 11kw 15HP Variable Frequency/Pace Industrial Rotary Screw Air Compressor ZL-15A-PM with PM Motor

Product Description

one. Dependable good quality, aggressive price tag
two. German technological innovation
3. Best service network
four. Straightforward to install, function and preserve.
5. Minimal sound, Low vitality usage, Lower running, Low routine maintenance cost.
6. Aptitude and intelligent Control, PLC manage, Liquid crystal display displayer.

 

Thorough Photographs

Item Parameters

 

Merchandise Gain

 

 

Our Services

1.24/7 soon after revenue services help in diverse languages.
two.Comply with up the comments of merchandise in 2 months interval by e-mail or phone.
3.Assistance of set up and commissioning on web site can be presented by manufacturing unit-educated experts or nearby Approved Support Heart.
4.Specialized training for customers in our partner factory or operating web site.
5.Lots of CZPT spare elements with confirmed high quality are all obtainable from our central stocks.
six.All varieties of complex paperwork in diverse languages.

Deciding on an Air Compressor

Contemplating a new Air Compressor? Right here are some guidelines to make the determination easier. Understand the professionals and disadvantages of each variety, like the variances amongst oil-injected and oil-totally free types, single phase and positive displacement. In addition, understand far more about the different technologies that are obtainable for your air compressor. It is critical to decide on an acceptable unit for the kind of operate you do. Here are some of the ideal compressors obtainable nowadays.
air-compressor

Good displacement

There are numerous various varieties of air compressors, but most are constructive displacement air compressors. They use a rotary or reciprocating part to compress air. The reciprocating element compresses air by reducing the quantity of the chamber. Positive displacement compressors are utilized in bicycle pumps, chemical plants, and refrigerators. Good displacement air compressors use numerous inlet ports. In spite of the a variety of types, the principle of procedure continues to be the very same.
Yet another kind of positive displacement air compressor is a reciprocating piston. The piston within a cylinder moves up and down, triggering the compressed air to fill the higher element of the cylinder. These air compressors are utilized in a range of different applications, such as blowing bottles and gas pipelines. These air compressors can be h2o-cooled, lubricated, or non-lubricated. Distinct kinds have different capacities and air pressures.
A positive displacement flowmeter uses a rotating chamber that divides steady fluid into discrete portions. The amount of occasions the chamber is crammed and discharged can be utilized to estimate the movement fee. The rotation speed of the measuring chamber is right proportional to the movement price. The downsides of this variety of optimistic displacement flowmeter are that it is susceptible to jamming. If the fluid includes particles, it may possibly be too thick for the meter to determine flow charge.
A damaging displacement air compressor was invented in 1860 and is the oldest sort of compressor. It utilizes two lobes positioned in a round cavity. One rotor is connected to an motor, although the other pushes the other one to spin in the opposite route. Adverse displacement compressors are low-routine maintenance, but they do call for much more precision. They are frequently utilized in nuclear energy crops since they use the kinetic energy of the rotating aspects to generate strain.

Oil-injected

Oil-flooded or oil-injected air compressors use liquid to seal and lubricate transferring components and reduce sound. Oil-flooded air compressors are powerful for a variety of pneumatic instruments and add-ons. Some versions have a thermostat that controls the volume of oil used throughout operation. Other types of oil-flooded air compressors are piston-sort models. Listed here is an overview of the simple variances among these two air compressors.
An oil-injected air compressor is a lot more high-priced than a comparable oil-totally free air compressor, but its benefits considerably outweigh its drawbacks. An oil-totally free compressor is quieter, needs much less upkeep, and has a reduce price tag tag. It also provides a increased diploma of air purity. A quantity of other benefits might also make this kind of air compressor the much better decision for many industrial settings. If you need a high-force compressor in a tight room, contemplate the positive aspects of an oil-cost-free method.
Oil-injected air compressors require much more maintenance than oil-free types. Equally kinds of air compressors provide equivalent capacity and ISO 8573-1 Course and 1-2 purity, but the oil-injected programs require much more air-treatment method factors. They require an activated carbon filter and coalescing filter. Oil-injected air compressors will most likely continue being the normal for industrial air compressors for a lot of years. And given that their performance and effectiveness are comparable, it could be worthwhile to commit in some stage-of-use air remedy.
The two varieties of air compressors have their positive aspects. Nevertheless, deciding on amongst oil-free and oil-injected air compressors is not as easy as you may possibly consider. Whichever type you decide on, make sure it will fulfill your wants. The advantages of an oil-injected air compressor outweigh their negatives. In standard, oil-injected air compressors are far more tough and can very last lengthier than oil-totally free designs. The only draw back is their increased price tag.
air-compressor

Oil-free of charge

When picking an air compressor for your firm, you may require to decide what it is going to be utilised for. For example, if you might be preparing on using it to power a number of workers, you ought to take into account receiving an oil-totally free compressor. An oil-free of charge compressor, on the other hand, is quieter and can energy many staff at a time. If you’re a contractor, the most important consideration will be the variety of employment you’ll be undertaking. Larger air pressure signifies greater demand from customers for air flow, and more stress can harm the equipment.
Oil-free compressed air is licensed 100% free of charge of contaminants. Technically, oil-cost-free air is not entirely free of charge of overseas matter, but it is extremely low in the boundaries of useful air good quality. A technically oil-free of charge air compressor may possibly have a complete oil level of .003 mg/m3. If you are in want of a technically oil-totally free air compressor, you must put in an air treatment products soon after your recent compressor.
If you’re in the manufacturing market, a excellent oil-totally free air compressor will save you cash and reduce your environmental impact. Several of these instruments need air compressors to perform, and this equipment will make sure that they do not get contaminated. To buy the ideal oil-free of charge compressor, you need to discover a bit about the various terms utilized by compressor fix businesses. ACFM, for case in point, is the amount of air that can be compressed in one particular moment at rated conditions.
When you happen to be making use of an oil-free air compressor, you should know that the overall life of the unit will be significantly shorter. Compared to an oil-flooded rotary screw air compressor, an oil-cost-free compressor generally has a lifespan of fifty thousand hours. But it is important to realize that this kind of compressor can even now result in damage to piping and procedures. For that reason, you should pick an oil-free of charge compressor when you need to clear air for your business.

Solitary-phase

A single-stage air compressor, also known as a piston air compressor, compresses air only as soon as just before storing it in a cylinder. This stored air has enough energy to electricity a selection of pneumatic tools, such as screwdrivers, chisels, and wrenches. These models are also preferably suited for low-circulation programs and are widely utilized in fuel stations, car outlets, and a variety of production crops.
A solitary-phase air compressor makes use of two valves – one for inlet and 1 for outlet – to transfer compressed air. Each valves are actuated by springs. The inlet valve has a slight curvature to supply security from hurt. The compressor’s outlet valve opens when the stress in the cylinder is increased than the strain in the storage tank. The piston moves quite speedily inside of the cylinder, exerting a higher quantity of drive all through the compression process. This higher piston velocity is a widespread lead to of compressor put on and tear.
A single-stage air compressor is best for smaller sized tradesmen and tiny building crews. Its lightweight and compact design and style make it less difficult to transportation and retailer. Although it may be tempting to purchase the initial inexpensive air compressor you see, it’s important to balance the cost in opposition to efficiency to decide on the appropriate air compressor for your wants. The very best one-stage air compressor is one that provides outstanding overall performance and toughness. Its two-phase counterpart is made for larger construction groups and large apps.
The principal big difference in between a solitary-phase and a two-stage air compressor lies in their ability. A one-phase air compressor compresses air only as soon as and delivers it into the storage tank, whilst a two-stage compressor compresses it twice, creating double the pressure. Due to the fact of this, single-stage air compressors are more affordable and functional than their counterparts, which implies that they can be used for multiple needs.
air-compressor

Low-noise

A lower-sounds air compressor is a variety of industrial compressor that is much less noisy than normal air compressors. These are generally more compact equipment designed for smaller sized factories and workshops with a number of to many personnel. They are created to take care of mid-excess weight volumes of compressed air for every working day. This sort of compressor is specially helpful for smaller production firms that need to produce compressed air for health care applications. Modest breweries can also advantage from the minimal-noise abilities of these compressors.
Minimal-sound air compressors appear in different measurements and features. For more compact work, you can buy a one-gallon model that is light-weight and portable. For larger employment, you can acquire 1 with a larger tank that can provide much more stress for longer employment. Nonetheless, a larger tank will make the compressor heavier and more challenging to transport. To stay away from this, make certain to examine the dimensions of the tank and how a lot power it can manage.
Taking into consideration a minimal-sound air compressor for your organization? If so, you’ve got come to the appropriate spot. There are a assortment of affordable and dependable minimal-noise choices to choose from. A CAT 10020C, for case in point, is developed to supply higher-volume air to a lot of retailers at as soon as. A CAT 10020C comes with a ten-gallon tank, wheels, and a carrying handle.
Sound ranges can also influence the productivity of personnel. When staff operate with air compressors in close proximity to every single other, they may possibly produce tinnitus. If personnel are cost-free from tinnitus due to the fact of the loud sounds, they are probably to work far more efficiently. Additionally, it will be simpler for them to focus and communicate effectively. If you want a compressor, a reduced-sound 1 is an superb choice.

China Professional High Efficiency Save Power 40% Stable Mute 11kw 15HP Variable Frequency/Speed Industrial Rotary Screw Air Compressor ZL-15A-PM with Pm Motor     with high qualityChina Professional High Efficiency Save Power 40% Stable Mute 11kw 15HP Variable Frequency/Speed Industrial Rotary Screw Air Compressor ZL-15A-PM with Pm Motor     with high quality