Solution Description

About us

          HangZhou HengJin Investing Co., Ltd recognized in 2000,soon after years of unremitting endeavours,Our business has a very good cooperation partnership with numerous huge automobile areas company andsupplier which from distinct contries,Source Satisfactory Source Rapidly, involves a lot of axles such as Korea s&t axles,Arvinmeritor axles,Germany’s  axles,Germany’s K axles,Xihu (West Lake) Dis.feng Dana axles and several other CZPT axle maker and we also give kinds of air suspension elements.Nowadays we are the biggest agent of DEAWOO BUS Areas,DOOSAN Engine Areas,and TURKEY AKTAS AIRCOMFORT in ZheJiang province,CHINA.We can give korea s&t gearbox (T9,T10,T13,T14,T15,T16,T17) assembly ,the elements and types of engine belt.
         Our products are exported to Africa, Center East, central Asia, southeast Asia, Russia and other nations and locations. HangZhou CZPT has usually considered in the business philosophy of “win-earn cooperation, client first” in order to provide far better solution quality and better services for new and aged consumers to generate a much better future!
         We sincerely assume customers to occur for a CZPT business for each of us!If you are interested in our business remember to make contact with us. 


one.One particular-quit Provider: Right here CZPT gives you with all car goods You can obtain all auto goods in 1 stop.

two.Targeted We emphasis on vehicle goods.

3.Payment: We acknowledge T/T, Pay out pal, L/C at sight and Western Union.

four.Honesty in enterprise practice We insist integrity as our organization basic principle, no subject how negative the organization surroundings will be.

5.Rapidly response – We constantly reply in 24 hours. We usually keep clientele informed. “No response, Silence” will in no way occur.


1. Over 2500 items for Daewoo

2. Sufficient kinds of stock

3. Rapid and secure shipping and delivery ,Different of transportation way: Sea, Air, Bus, Specific, and so forth

four. Large good quality with competitive value


Picking an Air Compressor

Contemplating a new Air Compressor? Here are some guidelines to make the selection easier. Learn the professionals and cons of each and every sort, which includes the variations among oil-injected and oil-free models, single phase and constructive displacement. In addition, discover more about the diverse technologies that are obtainable for your air compressor. It is crucial to choose an appropriate unit for the type of work you do. Listed here are some of the ideal compressors available these days.

Good displacement

There are many various kinds of air compressors, but most are positive displacement air compressors. They use a rotary or reciprocating element to compress air. The reciprocating component compresses air by lowering the quantity of the chamber. Good displacement compressors are utilised in bicycle pumps, chemical crops, and refrigerators. Optimistic displacement air compressors use numerous inlet ports. Despite the different kinds, the theory of operation stays the same.
One more variety of constructive displacement air compressor is a reciprocating piston. The piston inside a cylinder moves up and down, leading to the compressed air to fill the higher part of the cylinder. These air compressors are utilised in a variety of diverse apps, which includes blowing bottles and gasoline pipelines. These air compressors can be water-cooled, lubricated, or non-lubricated. Distinct sorts have diverse capacities and air pressures.
A positive displacement flowmeter utilizes a rotating chamber that divides steady fluid into discrete parts. The amount of occasions the chamber is crammed and discharged can be utilized to estimate the circulation charge. The rotation velocity of the measuring chamber is right proportional to the stream rate. The disadvantages of this variety of good displacement flowmeter are that it is prone to jamming. If the fluid includes particles, it may be too thick for the meter to decide stream rate.
A negative displacement air compressor was invented in 1860 and is the oldest kind of compressor. It uses two lobes positioned in a round cavity. One particular rotor is connected to an engine, while the other pushes the other one particular to spin in the reverse route. Adverse displacement compressors are minimal-servicing, but they do demand much more precision. They are often utilised in nuclear electrical power plants because they use the kinetic strength of the rotating factors to make force.


Oil-flooded or oil-injected air compressors use liquid to seal and lubricate transferring components and decrease sound. Oil-flooded air compressors are successful for a assortment of pneumatic equipment and add-ons. Some types have a thermostat that controls the amount of oil utilized during operation. Other varieties of oil-flooded air compressors are piston-kind models. Here is an overview of the simple differences among these two air compressors.
An oil-injected air compressor is far more costly than a equivalent oil-free of charge air compressor, but its advantages significantly outweigh its drawbacks. An oil-free of charge compressor is quieter, calls for less servicing, and has a lower cost tag. It also delivers a greater degree of air purity. A quantity of other positive aspects may possibly also make this sort of air compressor the better selection for a lot of industrial configurations. If you want a high-strain compressor in a restricted place, consider the rewards of an oil-free of charge technique.
Oil-injected air compressors call for a lot more maintenance than oil-totally free types. Both kinds of air compressors offer you similar capacity and ISO 8573-1 Class and 1-2 purity, but the oil-injected programs require far more air-therapy parts. They need an activated carbon filter and coalescing filter. Oil-injected air compressors will probably continue being the standard for industrial air compressors for many years. And because their performance and performance are similar, it may be worthwhile to commit in some position-of-use air remedy.
Equally types of air compressors have their rewards. However, picking among oil-free and oil-injected air compressors is not as easy as you may possibly consider. Whichever sort you pick, make positive it will meet your wants. The rewards of an oil-injected air compressor outweigh their down sides. In general, oil-injected air compressors are more tough and can final for a longer time than oil-free of charge models. The only downside is their higher value.

Oil-free of charge

When choosing an air compressor for your firm, you are going to want to establish what it is heading to be utilised for. For instance, if you happen to be arranging on utilizing it to power multiple employees, you ought to think about getting an oil-cost-free compressor. An oil-totally free compressor, on the other hand, is quieter and can electrical power a number of staff at a time. If you might be a contractor, the most important consideration will be the kind of work you are going to be undertaking. Increased air stress means better desire for air circulation, and much more stress can damage the tools.
Oil-free of charge compressed air is qualified a hundred% free of contaminants. Technically, oil-free air is not completely cost-free of foreign subject, but it is very low in the boundaries of functional air good quality. A technically oil-free of charge air compressor may possibly have a complete oil amount of .003 mg/m3. If you’re in need to have of a technically oil-totally free air compressor, you should install an air therapy gear soon after your existing compressor.
If you happen to be in the producing industry, a very good oil-free air compressor will save you income and reduce your environmental affect. Numerous of these instruments call for air compressors to function, and this gear will ensure that they will not get contaminated. To buy the best oil-totally free compressor, you ought to learn a little bit about the distinct terms employed by compressor restore businesses. ACFM, for case in point, is the quantity of air that can be compressed in a single moment at rated problems.
When you are making use of an oil-cost-free air compressor, you must know that the general daily life of the gadget will be considerably shorter. In contrast to an oil-flooded rotary screw air compressor, an oil-free of charge compressor usually has a lifespan of fifty thousand several hours. But it is crucial to comprehend that this type of compressor can nevertheless lead to injury to piping and processes. Therefore, you ought to choose an oil-free of charge compressor when you require to clean air for your company.


A single-stage air compressor, also acknowledged as a piston air compressor, compresses air only as soon as before storing it in a cylinder. This saved air has adequate power to electricity a range of pneumatic instruments, these kinds of as screwdrivers, chisels, and wrenches. These models are also preferably suited for minimal-circulation purposes and are commonly utilized in gasoline stations, auto stores, and numerous production vegetation.
A one-phase air compressor utilizes two valves – one particular for inlet and 1 for outlet – to transfer compressed air. Each valves are actuated by springs. The inlet valve has a slight curvature to give security from hurt. The compressor’s outlet valve opens when the force in the cylinder is greater than the strain in the storage tank. The piston moves really rapidly inside the cylinder, exerting a substantial sum of force during the compression process. This substantial piston pace is a typical cause of compressor dress in and tear.
A single-phase air compressor is perfect for smaller tradesmen and tiny construction crews. Its lightweight and compact layout make it simpler to transport and store. Whilst it may possibly be tempting to buy the 1st inexpensive air compressor you see, it is crucial to balance the value from performance to pick the correct air compressor for your requirements. The very best solitary-phase air compressor is 1 that gives excellent efficiency and longevity. Its two-stage counterpart is made for bigger building groups and huge purposes.
The primary difference between a solitary-stage and a two-phase air compressor lies in their potential. A solitary-phase air compressor compresses air only when and provides it into the storage tank, whilst a two-phase compressor compresses it 2 times, making double the force. Simply because of this, solitary-stage air compressors are less expensive and functional than their counterparts, which indicates that they can be used for multiple reasons.


A low-sounds air compressor is a variety of industrial compressor that is much less noisy than regular air compressors. These are normally scaled-down machines made for smaller sized factories and workshops with a few to several personnel. They are made to manage mid-excess weight volumes of compressed air per day. This kind of compressor is specially beneficial for scaled-down production firms that want to create compressed air for healthcare purposes. Tiny breweries can also benefit from the minimal-noise abilities of these compressors.
Minimal-sounds air compressors appear in different sizes and characteristics. For scaled-down positions, you can obtain a 1-gallon design that is lightweight and transportable. For greater positions, you can buy one with a greater tank that can give more stress for lengthier work. Even so, a bigger tank will make the compressor heavier and more difficult to transport. To stay away from this, make confident to examine the measurement of the tank and how significantly power it can manage.
Considering a lower-sound air compressor for your company? If so, you’ve come to the proper place. There are a assortment of reasonably priced and dependable minimal-sounds alternatives to decide on from. A CAT 10020C, for case in point, is made to supply high-volume air to a lot of shops at once. A CAT 10020C arrives with a ten-gallon tank, wheels, and a carrying handle.
Noise levels can also influence the productivity of staff. When workers work with air compressors in shut proximity to each other, they may possibly produce tinnitus. If staff are free of charge from tinnitus because of the loud noise, they are probably to perform far more successfully. Moreover, it will be easier for them to target and connect successfully. If you require a compressor, a minimal-sound a single is an exceptional decision.

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