China Hot selling Belt Driven Rotary Screw Air Compressor 20HP with Great quality

Product Description

Solution Description

DHH belt pushed sequence oil-significantly less screw compressors are lower noise, CZPT substantial performance, trustworthy good quality.

ZheJiang DHH screw compressor features:

1, excellent efficiency

2, microcomputer controller

three, dhh screw compressor OEM acceptablee

Welcome to visit our factory!

DB Collection (Belt) Screw Compressor Technological Parameters:


A signifies air-cooling variety, W represents h2o-cooling sort

Doing work atmosphere temperature: – 5 °C ~ forty five °C

The exhaust temperature is much less than environment temperature about + 10 °C ~ 15 °C.

Driving manner: belt transmission

Startup manner: immediate commence below 11KW, and Y-Δ commence above 11KW

Work energy: 380V / 50HZ, 460V / 230V / 6KV and 10KV voltages can be manufactured for buyers

F.A.D quantity movement take a look at is according to ASMC PTC9 or ISO1217 common (GB/T3853).

When our items enhance, content could change without having observe!

Settle for customer’s special request type, and much less than 1.5 Map types orders.

PS: we also offer moveable screw compressor and direct screw compressor for customers!

Design: DB20A
Free of charge air shipping and delivery: 2.3m3/min
Operating pressure: 8 bar
Screw air conclude rotor lobe: 5:6
Brand name of screw air stop: CZPT ZheJiang  AB+ sequence( 6 pcs CZPT bearings)
Handle:  CZPT PLC controller
Driven: belt
Cooling: by air
Electric motor: 20hp fifteenKW,220v/60hz/3ph, IP54 safety degree
Discharge temperature: considerably less than ambient +8 ºC
Noise: considerably less than sixty five dB(A)
Air outlet dimension: G1″
Dimension: 1100*800*980mm
Fat: 460kg
Warranty: 24 months for the screw air end,twelve months for the entire established compressor apart from air filter,oil filter and oil/air separator.

Our Benefits

Packaging & Transport

Packaging & Shipping and delivery

Export package deal, by plywood scenario,  before packing, the air compressors will be lined by pp movie, and bottom fixed by nails to fasten it.  


Firm Profile

Our manufacturing unit

Our Factory have been in air compressors business for 20years,  from piston variety air compressor late to screw sort air compressors,  now we have fixed velocity (belt pushed), set velocity (direct driven) screw air compressorsVSD variable speed frequency screw air compressors, inverter compressors work very very good and preserve electricityBesides we also have the newest engineering for long lasting magnet frequency screw air compressors,  this new technology screw air compressor tremendous environmental and conserve vitality,  quite decrease sounds, virtually mute, best choice if your work store have higher request of setting.

Welcome to pick us as your associate and best provider!

Our exhibition

Our provider

Our Solutions



one.Why customer choose us? 
DHH  COMPRESSOR ZheJiang CO.,LTD.with 23 a long time aged historical past,we are specialized in Rotary Screw Air Compressor.Germany Regular and 13 many years exporting encounter aid us gained much more than thirty faithful overseas brokers.We warmly welcome your small trial purchase for good quality or market place take a look at.

two.Are you a producer or investing organization?
We are expert company with huge CZPT factory in HangZhou,China,with skilled style crew.The two OEM & ODM provider can be accepted.

3.Where is your manufacturing facility located? How can I visit there?
Our manufacturing unit is positioned in HangZhou City, ZheJiang Province, China. We can pick up you from ZheJiang , it really is about 1 hour from ZheJiang Xihu (West Lake) Dis. Airport to our factory. Warmly welcome to check out us!

four.What is actually your shipping time?
380V 50HZ we can shipping and delivery the goods in 14 days. Other electrical power or other coloration we will shipping and delivery in 22 days,if urgently order,pls speak to our product sales in advance.

five.How extended is your air compressor guarantee?
One particular calendar year for the entire machine and 2 years for screw air end, except consumable spare areas and we can offer some spare elements of the devices

6.How does your manufacturing unit do regarding top quality management?
Top quality is almost everything. we always attach excellent significance to good quality controlling from the quite starting to the quite finish. Our manufacturing facility has acquired ISO9001:2015 authentication and CE certificate.

seven.How extended could your air compressor be used?
Generally, far more than 10 years.

eight. What’s payment term?
T/T,L/C,D/P,Western Union,Paypal,Credit Card,and and so forth.Also we could take USD, RMB, Euro and other forex.

nine.How about your consumer services?
24 several hours on-line provider available.forty eight hrs dilemma solved promise.

ten.How about your soon after-income provider?
(1) Supply consumers with set up and commissioning on-line directions.
(2) Effectively-trained engineers accessible to overseas provider.
(3) Worldwide brokers and soon after services offered. 


The Air Compressor Is a Versatile Instrument

The Air Compressor is 1 of the most versatile equipment in any garage or workshop. It is straightforward to use and can execute a range of duties, from jackhammering to drilling. These devices are available in a vast selection of dimensions and sorts, making it an superb selection for a range of circumstances. With a single motor, you no more time need to have individual motors for each instrument. Its lightweight, compact layout makes it simple to take care of, and the one motor also decreases dress in on components.


Oil-injected air compressors demand a huge sum of lubricant, which demands to be included to the sump regularly to preserve ideal functionality. As there are a lot of varieties of industrial fluids, a well-intentioned servicing technician might insert the incorrect lubricant to the compressor. If this happens, the compressor will turn into incompatible with the lubricant, ensuing in extreme carryover and the need to flush and replace downstream air treatment elements.
Generally, the G one hundred ten-250 oil-injected rotary screw compressor from Atlas Copco gives trustworthy compressed air, protecting against costly downtime. The G110-250 oil-injected rotary screw compressor is hugely dependable and resilient, enabling it to perform in temperatures up to 46degC/115degF. In spite of the oil-injected air compressor’s sturdy style, this device calls for very little on-web site installation, and it functions easy operation.
The major gain of oil-injected air compressors is the lowered expense of running. The expense of oil-cost-free compressors is significantly less than fifty percent of that of oil-injected ones, and it will need fewer servicing fees in the prolonged run. Additionally, the oil-totally free program is more environmentally helpful than oil-injected air compressors. But the negatives of oil-injected air compressors are substantial, as well. It can contaminate finished items and result in a important monetary danger for the producer.
An oil-injected rotary screw air compressor offers several rewards over its counterpart. Initial, it functions an innovative vertical style with variable-velocity push, permitting it to operate far more proficiently. Next, oil-injected air compressors decrease strength consumption by up to 50% in contrast to non-oil-injected air compressors. They also have a thermostatic valve, permitting them to preserve an the best possible temperature. Thermostatically-regulated oil coolers allow the compressor to run more quietly.


What is an oil-free of charge air compressor? The identify refers to a type of air compressor that does not have oil in the compressor chamber. Oil-totally free air compressors even now use oil for various needs, like lubricating the shifting components and managing squander warmth. Nonetheless, numerous people do not realize that their air compressor still demands oil for suitable functioning. This article will explore why this sort of air compressor is preferable for many users.
1st of all, oil-cost-free air technologies has numerous rewards. For one, it lowers the energy cost included in filtering air, and it minimizes leaks. Moreover, it also minimizes the oil expenses related with compressor refills. And lastly, it minimizes the pitfalls of contamination. Oil-free of charge air technology is the long term of compressed air. If you might be looking for an oil-cost-free air compressor, here’s what to appear for in your search.
Depending on the goal of your air compressor, it could be advantageous to invest in an oil-free air compressor. Oil-lubricated air compressors are normally much more tough than their oil-free of charge counterparts, but they might price twice as a lot. You ought to still contemplate the value of possession before acquiring an oil-free of charge compressor. The oil-free of charge models can be less complicated to transport, and they are more potent. In addition, they are quieter than oil-lubed types.
An oil-cost-free air compressor also signifies significantly less upkeep, as it isn’t going to require oil to perform. This kind of air compressors also features less moving areas, which implies much less spots for difficulties to develop. All oil-free air compressors are manufactured to meet ISO Class and 1 air purity standards. They also have significantly less noise and vibration compared to their oil-based counterparts. So, why not pick an oil-cost-free air compressor for your business?


When picking a fuel-driven air compressor, it is crucial to contemplate the benefits of gasoline. This vitality source can energy a large air compressor without electrical energy. Even so, this sort of air compressor lacks electrical hookup, so you’ll need to operate an extension wire if you require to use it at a distance. Even so, gasoline compressors are able to operate with just a gas tank. This can make them best for medium to hefty-responsibility industrial applications.
An additional important consideration when selecting a gasoline air compressor is its dimensions. More substantial compressors are usually bigger than moveable kinds and demand a lot more space. This tends to make them less difficult to transportation and work on the go. Nonetheless, if you happen to be not certain which variety of air compressor is greatest for you, take into account the gas-run variations. While they may be lighter, they will not operate as effortlessly as their electrical counterparts. Gasoline-driven compressors are not as moveable as their electrical counterparts and require correct servicing.


Electrical power in an air compressor is not inexpensive. A 25 HP air compressor runs for 10 several hours every working day, 5 days a week. The motor in these machines consumes 746 watts for each hour. To locate out how much electric power the gear makes use of, multiply the wattage by the running time. For instance, if the compressor runs for 3 hours, then it will use 1.9 kilowatt hrs of electrical power. To decide how significantly electrical power an air compressor utilizes for each working day, you can compute the kilowatt hours and multiply the quantity by the utility charge. Considering this, you can decide the price of running your air compressor after per thirty day period.
The value of working an air compressor is dependent on the sort of compressor. Electric air compressors are usually silent and can operate without having any servicing. These instruments can be remaining unattended for up to four thousand hours prior to necessitating repair. Electrical air compressors need higher electricity for increased strain, so you should plan accordingly. No matter whether or not you require a servicing visit is up to you, but the reward of not possessing to invest a fortune on repairs is priceless.
Although compressed air is not an vitality-successful supply, its use in a range of applications might conserve you income and kilowatts. Given that an air compressor makes use of electricity when it is running, the expense is decrease than the value of functioning a electricity resource. If you prepare to use your air compressor for a extended time, make confident that it is preserved appropriately. Correct treatment will preserve you funds and electrical power, and you could even be able to get an extended warranty if the compressor breaks down.

Variable frequency push

The primary function of a variable frequency push (VFD) in an air compressor is to lessen power consumption in the approach of compression. A single motor drag technique can not adjust its pace continuously in accordance to the fat of the load. By implementing frequency manage to the compressor, the electrical power usage can be lowered while preserving the exact same force level. For that reason, a VFD is an excellent choice for compressors. Its rewards are several.
A VFD can also keep track of the temperature of the motor and deliver error indicators if the motor is managing too very hot or as well cold. This removes the want for a individual sensor to monitor the oil stress. These features are beneficial not only in decreasing vitality intake, but also in improving the overall performance of an application. Moreover, a VFD can check added variables this sort of as temperature and motor velocity. Consequently, it is a valuable expense.
When making use of a VFD, it is essential to pick the right motor. The velocity of the compressor must be inside of the greatest commencing restrict of the motor. The air tank may be of any measurement, but a constant strain limit is necessary to hold the VFD managing within the services element of the motor. In addition to a VFD, a grasp controller need to also contain a distant stress set position and a PID card for a grasp controller. The transmitter ought to include all helpful knowledge from the VFD, like the velocity and the oil temperature. The VFD must be tested prior to it is built-in with the learn management. It must be examined for min and max speed, temperature, and existing inside of the anticipated variety.
The use of a VFD in an air compressor has several benefits. A single of the most noteworthy is the reduction in energy usage. Mounted-pace compressors operate on established points of six to 7 bar. An added bar of compression makes use of 7 % of vitality. This energy is wasted. A VFD-run air compressor can also enhance the life span of compressor areas. It is 1 of the greatest investments in your compressor. So, why wait any lengthier?

China Hot selling Belt Driven Rotary Screw Air Compressor 20HP     with Great qualityChina Hot selling Belt Driven Rotary Screw Air Compressor 20HP     with Great quality

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