DM Series Permanent Magnet Variable Frequency Screw Compressor

Permanent magnet Direct Screw Air End
It is a 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 screwing compressor is driven by the permanent magnet motor. There is no consider about the attrition of the 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 calibritionfor the gear coaxial seal. The high-effect converter technique will reduce the operating costs prodigiously, which can provide you a real excellent technology.
 

Features Of Permanent Magnet Variable Frequency Air Compressor

Ultra-low temperature rise design, the compressor allows long-term stable operation at ultra-low frequencies; closed-loop vector control system, faster control and more precise speed regulation; the compressor unit can still maintain efficient operation when the frequency is reduced by more than 50%; the pressure is stable, and the pressure is accurately controlled The fluctuation is within 0.01Mpa.

 

The figure shows the comparison of several starting methods. It can be seen that the inverter starts slowly and starts more smoothly, completely avoiding the current peak.

Under the set variable frequency pressure, the unit will automatically adjust to keep the output pressure within ±0.1bar, reducing unnecessary waste (for every pressure increase by 1 bar, power consumption increases by 7%)



Why choose permanent magnet variable frequency screw air compressor?


Our permanent magnet frequency screw air comrpessor parmaters:  Notes:
1.A represents air-cooling type;
2.Working Environment temperature: 2ºC~45ºC;
3.Startup Mode: frenquency start 
4.Work Power: 380V / 50HZ/3P 4 wire type.
5.F.A.D volume flow test is according to ASMC PTC9 or ISO1217 standard (GB/T3853)


Screw Air Compressor Features:
1.Touch screen display controller.
2.Remote control function.
3.Automatically restart after short power off.
4.All parameters of air compressor can be checked from screen disply of the controller.
5.High temperature alarm, voltage alarm, filters overtime alarm functions.



Welcome to visit our factory, we would like to have honest and warm cooperation with your company!


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About us
Dehaha Compressor was founded in 1996 with over 150 skilled employees and more than 25 R&D engineers' teams.We focus on the research & develop, manufacture and energy-saving solutions of screw air compressor to create value for customers and society.

Dehaha opened to the world since 2015, and now we have a foreign trade department with more than dozens people, serving customers around the world 24 hours. We have sales representatives who can speak English, Spanish, Portuguese, French,and Russian which makes it easier for our clients from all over the world to interact and negotiate with us.now our valued customers are over 130 countries. Germany Standard and 13 years exporting experience help us won more than 50 loyal overseas agents.

Dehaha continuously innovates product development and management to meet customers' demand. The powerful enterprise culture and continuous innovation make Dehaha improved rapidly to reach the business principle "Energy Saving First, Mutual Value Shared". The production line of DEHAHA is consist of screw air compressor from 5.5KW to 550KW, oil free air compressor, portable air compressor, permanent magnet variable frequency air compressor, high pressure air compressor and compressed air purification equipment, etc.

Dehaha 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 offer our customers a silent and energy-saving manufactured products.

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Why choose us



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FAQ

Q1. Are you trading company or manufacture ?

A: We are professional manufacture of screw air compressor of Qidong(Close to Shanghai), China, more than 24 years.

 

Q2. How long is the delivery time ?

A: For standard voltage ,15 working days. Non-standard ,please contact our sales.

 

Q3. What's payment term ?

A: T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.

 

Q4. How about your after-sales service ?

A: 1.Provide customers with installation and commissioning online instructions.

  2. Well-trained engineers available to overseas service.

  3.Worldwide agents and after service avaiable.arrange our engineers to help you training and installation.

 

Q5. How about your warranty?

A: One year for the whole machine and two years for screw air end, except consumable spare parts.

 

Q6. Do you have any certificate ?

A: Yes, per different customer's market need ,we can offer CE ,ISO etc certificate.
 

Q7. What about the maintenance ?

A: First maintenance need to be done after 500Hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.

 

Q8. How do you control quality ?

A: 1.The raw materials are strictly inspected

      2. Some key parts are imported from overseas

      3.Each compressor must pass at least 5 hours of continuous testing before leaving the factory.
 

Q9. Do you offer OEM service ?

A: Yes.Both OEM & ODM service can be accepted.
 

Q10.How long could your air compressor be used?

A: Generally, more than 10 years.