Screw Compressor, Air Compressor, Frequency Compressor manufacturer / supplier in China, offering Energy Saving Permanent Magnet Frequency Screw Air Compressor, 90kw Direct Drive Screw Air Compressor (Variable Frequency), Industrial Variable Speed Screw Air Compressor 22kw to 400kw and so on.

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Energy Saving Permanent Magnet Frequency Screw Air Compressor

FOB Price:US $1,550 - 8,500 / Piece
Min. Order (Pieces) FOB Price
1+ US $1,550-8,500 / Piece
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Min. Order: 1 Piece
Port: Shanghai, China
Production Capacity: 500sets/Month
Payment Terms: L/C, T/T

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Basic Info.

Model NO.:DM30A
Lubrication Style:Lubricated
Cooling System:Air Cooling
Cylinder Position:Vertical
Structure Type:Closed Type
Installation Type:Stationary Type
Type:Twin-Screw Compressor
Screw Air End:Ghh / Hanbell
Electric Motor:Siemens / Zoda
Inverter:Variable Speed
Transport Package:Plywood Case
Origin:Shanghai, China
HS Code:8414809090

Product Description

Energy Saving Permanent Magnet Frequency Screw Air Compressor

it is unique new design, which combines the permanent magnet motor and the speed control frequency converter. it couples with the high-quality air end, which shows the advanced screw compressor technology, it can provide the unique energy-saving effect and super reliability. there is no motor bearing.the screw compressor is driven by the permanent magnet motor. there is no consider about the attrition of gear, pulley, belt, coupling, shaft seal and the moving parts, which leads to the leak or change parts, meanwhile, it not need to consider the calibration for the gear coaxial seal, the high-dffected converter technique will reduce the operationg costs prodigiously, which can provide you a real excellent technology.
Energy Saving Permanent Magnet Frequency Screw Air Compressor


Permanent Magnet Frequency Conversion Screw Air Compressor
1, New developed screw compressor
2, Energy saving with both fan motor and compressor motor frequency
3, With CE, BV cerfiticate
4, Shanghai dhh factory MAGNET FREQUENCY screw compressor

Technical Parameter List

Model No.Air FlowPowerNoiseOutlet 
Mpam3/minKwHPdb(A)InchL*W*G mmKg
DM-50A0.6-1.32.16-6.5375069G1 1/4"1450*940*1335925
DM-60A0.6-1.32.66-8.0456070G1 1/4"1450*940*13351025

Our oversea exhition (pemanent magnet VSD screw air compressor by new technology, can save 40% electricity.)
Energy Saving Permanent Magnet Frequency Screw Air Compressor

Touch Screen Panel Controller
you can see all the system working status from it.
Restart Function
can work again automatically after electricy power off or electricity surgy.
Remote Control Function
can connect to computer, and separate controller or separate switch, to start and close the air compressor from a far distance.

Energy Saving Permanent Magnet Frequency Screw Air Compressor
Energy Saving Permanent Magnet Frequency Screw Air Compressor
As the name suggests, there is oil injected in this type of screw compressor. But where is it
injected, why and how? Let me explain..
As said before, the screw element is the most important part of the air compressor. But it
can't function by itself. There are a lot of other parts that make up the air compressor. 
How it works
Outside air
Air is sucked in by the screw element (air-end) through the air inlet filter. The inlet filter
makes sure that all the dust en dirt stays outside. It protects the screw element (which is
very expensive and can be damaged.
It's also the first step in making sure that the compressed air is clean: all the dust that is
sucked in will eventually end up in the compressed air system.
Load/unload control
Before the air enters the screw element, it passed the inlet valve or unload valve. This
valve opens and closes the air supply to the screw element.
When it's open, the compressor is in 'loaded' condition: it is actually compressing air and
pumping it into the compressed air system. When the valve is closed, is shuts off the air
supply to the compressor element: the motor and screw element are turning, but the compressor is not sucking any air in and is not pumping any air to the system.

About our company

Shanghai DHH Screw Compressor Co., Ltd is a leading screw compressor manufacturer in Shanghai, China. We focus on the research & develop and manufacture of screw air compressors and related after-treatment equipment over 15 years experience.
Our screw compressors include air & water cooled compressor, belt & direct driven compressor, variable frequency compressor, low pressure compressor, oil free compressor, diesel driven portable compressor and piston compressor; Our after-treatment equipments include refrigeration & adsorption air dyers, precision Air filter and Air receiver.
Our products have passed CE certificate. We offer you world-class products with advanced features, competitive price, and reliable quality and on time delivery.
We always make superior quality screw compressor because of adopting Germany advanced production technology and European famous brands machine parts for compressors.
Shanghai DHH screw compressor has an experienced expert team, not only provide users with high-quality and high-efficiency compressed air system equipment, but also provide users with optimum air system solutions during before-sale, sale and after-sale services.
In China Market, our compressor has become the preferred choice to customer through technical superiority, strong sales network and excellent after-sales service.
In the world market, our products are available in 40 countries covering Europe, North America, South America Australia, Asia, Africa, and Middle-East.
Welcome more agents and dealers join us and make long term cooperation!

We can also offer you completely compressed air system:
Screw air compressor+Refrigerated air dryer+Air tank

Energy Saving Permanent Magnet Frequency Screw Air Compressor

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