Single Stage Fixed Speed

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Single Stage Fixed Speed Screw Air Compressor

Model: DM-G Series; Brand: Dream

Rated Power: 22~355KW

Air Capacity: 2.8~61m³/min

Working Pressure: 0.8~1.3MPa

Product Features

■ Durable, efficient and stable air end.

■ IE3 motor, save your electricity cost, IP54, Class B temperature rising motor is suitable for harsh environments such as with bad dust and high temperature.

■ Coupling connection, more energy saving.

■ Multiple noise reduction design, calculated according to noise theory, with special flame retardant muffler cotton inside to reduce unit noise and provide a quieter environment.

■ Independent air intake to make the cooling effect better.

■ Integrated cooler integrates oil cooling and after cooling. Adopt high-efficiency and low-noise internal rotor axial fan, with large cooling air flow, low noise, faster cooling effect, and convenient cleaning and maintenance.

■ Cyclone type internal and external oil separator design, improve the initial separation efficiency, winding oil design, low pressure loss, reduce air oil content, long service life;

■ The conventional maintenance parts (three filters) are all openable door panels, the installation position is easy to replace, and the maintenance is more convenient.

■ High-temperature shutdown protection.

■ Motor overload protection.

■ Overpressure safety decompression system.

■ Optimize the shock-absorbing pad to reduce vibration and noise.

■ Place electrical components and oil separator and filtration modules that are easily damaged by high temperature in the cold room, which improves the service life of the unit.

■ Two-way pressure, one-way temperature control, more protection for series operation.

■ The standard IoT system allows you to see the operation of your machine on your mobile phone.

Durable, efficient and stable air end

Durable, efficient and stable air end

1. The design idea of "large rotor, large bearing, low speed" is adopted to reduce noise and vibration and increase the life and stability of the host.

2. The tooth surface is processed by the German KAPP rotor grinder to create a high-precision rotor, which is the first guarantee of high efficiency and stability of the air end.

3. Adopt a new type of 5: 6 asymmetric rotor tooth shape, high-precision three-coordinate measuring machine for comprehensive measurement, increase the air capacity by 5% -10%

4. All imported quality bearings are used.

Specialized  motor for air compressor

Specialized motor for air compressor

1. Imported brand bearings, protection class IP54, insulation class F, suitable for harsh environments such as large dust and high temperature.

2. IE3 high-efficiency motor uses less electricity and reduces your cost of use.

3. The motor is designed according to the 1.2 coefficient, and the starting torque is large, which can meet the requirements of full life use under various working conditions.

High-quality and efficient coupling

High-quality and efficient coupling

1. The coupling is a torsionally elastic coupling with failure protection function, which can effectively damp and reduce the vibration and shock generated during the operation. 

2. The elastic body is only under pressure and can withstand greater loads. The drum-shaped teeth of the elastic body can avoid stress concentration.

Stable and reliable electronic control system

Stable and reliable electronic control system

1. The control system has the functions of voltage detection, three-phase unbalance detection, overpressure, overtemperature, overload, and overrun alarm high alarm functions, real-time protection of the unit, automatic monitoring of operating conditions, automatic loading and unloading, sleep and restart And other functions, no need to be supervised by someone.

2. The standard Internet of Things system allows you to see the running status of your machine on your phone.

3. The intelligent control system can be set in both Chinese and English, and can realize the joint control of multiple units.

4. Choose high-quality electrical components, and the contactors are imported brands.

5. Emergency stop function, a push-type emergency stop switch is installed in a prominent position of the unit, and it can stop immediately in an emergency.

Inner rotor fan

Inner rotor fan

1. IP44 cooling fan, Class F insulation;

2. Compared with the outer rotor fan, the inner rotor fan has higher air pressure, more air volume, and better cooling effect;

3. Due to high wind pressure, the cooler and filter are less likely to be blocked

Three filters

Three filters

Air filter: the filter area exceeds 150% of the normal requirement, low the inlet pressure loss , and high energy efficiency ;

Oil filter: The design of the imported oil filter with enlarged glass fiber material is adopted. The rated processing capacity of the oil filter is ≥1.3 times of the circulating oil volume. The filtering accuracy is high and the durability is good.

Oil separator: imported glass fiber material oil core, good filtration effect, low oil core pressure loss.

Inlet valve

Inlet valve

Inlet valve: low flow speed test, low pressure loss, reduce energy consumption;

Minimum pressure check valve: low pressure loss, precise control, ultra-fast repositioning to ensure that the user's air does not return.

Temperature control valve: Mixed flow temperature control valve: The unit is equipped with a mixed flow temperature control valve to ensure that the unit is more convenient to start in a low temperature environment, and to ensure the unit is in the best performance state by controlling the oil supply temperature of the air end





  • 1. Material and life of permanent magnet motor


    The magnetic steel of the permanent magnet synchronous motor we use is neodymium iron boron permanent magnet material. Can be used for a long time under normal use

  • 2. Comparison of oil-cooled and air-cooled motors


    Oil-cooled motors use lubricating oil for cooling, which has high cooling efficiency and is less affected by ambient temperature. Air-cooled motors use cooling air for cooling.

  • 3. Can you work 24 hours a day?



  • 4. How many years can this machine be used?


    The design life of our unit is 30 years.

  • 5. In order to avoid frequent start and stop, what is the minimum pressure difference between loading and unloading, and what is the best pressure difference to maintain?


    Please refer to our manual.

  • 6. Is it possible to achieve constant pressure air supply?


    Variable frequency unit can realize constant pressure air supply

  • 7. What is the range of pressure fluctuations?


    The variable frequency unit can realize constant pressure air supply, and the industrial frequency unit can set the loading and unloading pressure according to the requirements

  • 8. Is the vibration big? Help me deal with it during installation


    The vibration value of the unit is less than the national standard value.

  • 9. Will it degauss in 3-5 years?


    The magnetic steel of the permanent magnet synchronous motor we use is neodymium iron boron permanent magnet material. Can be used for a long time under normal use

  • 10. The customer’s actual pressure is 8 bar. Can an 8 bar machine meet the requirements?


    Please refer to the catalog for the rated exhaust pressure of our corresponding models

  • 11. How big is the centrifugal fan? What’s the air volume? What brand?


    Regarding the cooling air volume, please check our model parameter table

  • 12. Whether the air compressor has an explosion-proof certificate (Yibin coal mine customer)


    For special models, please consult our sales manager.

  • 13. Is the equipment air-cooled or water-cooled


    We can produce both air-cooled and water-cooled models. Please consult our sales manager for specific product information.

  • 14. Motor cooling method


    Depending on the model, there are air-cooled motors and oil-cooled motors.

  • 15. Is the motor an energy efficiency IE4 motor?


    The energy efficiency of permanent magnet motors reaches IE4 level.

  • 16. Cases in the industry and region


    Please check Dream official website

For more than a decade, Dream (Shanghai) Compressor Co., Ltd has been striving to become one of the leading manufacturers of compressed air solutions in China.

Contact Us

Mob.: +86-13671551445


WhatsApp: +86-13671551445

Add.: No.30 Caoli Road, Jinshan District, Shanghai, China

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