Two Stage Fixed Speed

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Two Stage Fixed Speed Rotary Screw Air Compressor

Model:DH-Z Series

Brand:DREAM

Working Pressure:8~13 [ bar ]

            116.0~188.5 [ psig ]

Air Capacity (FAD):8.8~120 [ m³/min ]

                       310.8~4237.8 [ cfm ]

Power:55~560 [ KW ]

   74.8~761.4 [ hp ]

For other product parameters, we can customize for clients and please inquiry us.


Product Features

1. Durable, efficient and stable air end.

2. Independent interstage cooling for higher energy efficiency.

3. Coupling connection, more energy saving.

4. Independent air intake for better cooling effect.

5. Integrated cooler integrates oil cooling and after cooling.

6. Cyclone internal and external oil separator barrel design to reduce air oil content.

7. Winding oil separator design, low-pressure loss, long life, reduce your maintenance cost.

8. IE3 motor, save your electricity cost.

9. IP54, Class B temperature rise motor is suitable for harsh environments such as with bad dust and high temperature.

10. High-temperature shutdown protection.

11. Motor overload protection.

12. Overpressure safety decompression system.

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

14. 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.

15. Touch screen controller makes your operation comfortable.

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


Applications

  1. Automotive Manufacturing:

Our 2-stagecompression air compressors are ideal forpowering pneumatic tools and equipmentin automotive production lines, ensuringreliable and energy-efficient air supply fortire inflation, painting, and more.

2. Food & Beverage 

Processing: Theprecision-controlled pressure range (8-13bar) and high airflow capabilities make ourcompressors perfect for food packagingbottle blowing, and other processesrequiring precise air control, maintaininghygiene standards with lP54-rated motors.3. Mining & Construction:

Durability and highperformance are key in mining andconstruction sites.Our compressorsdeliver consistent airflow(310-4240 cfm)to power drills, jackhammers, and otherheavy-duty equipment, enhancingproductivity and reducing downtime.

4. Textile Industry: 

For textile mills, ourenergy-efficient 2-stage compressorsprovide stable air pressure for spinning,weaving, and finishing processesenhancing product quality and reducingoperational costs. The lP54 protectionkeeps motors safe from dust and debris,ensuring continuous operation.

Two-stage compression, energy saving up to 15% compared to single stage

Two-stage compression, energy saving up to 15% compared to single stage

1. Two-stage compression, small compression ratio, less leakage, small bearing load, greatly improved bearing life.

2. Unique intercooler jet curtain design reduces the temperature of the air and saves the power required for compression.

3. 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 air end.

4. 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.

5. 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%.

6. All imported quality bearings are used.

Specialized  motor for air compressor

Specialized motor for air compressor

1. Large starting torque.

2. Specialized motor for air compressor, imported quality bearings.

3. IE3 high energy efficiency motor, reduce your using cost.

4. Motor design is designed according to 1.2 coefficient.

5. Protection grade IP54, insulation grade F.

Permanent magnetic synchronous motor

Permanent magnetic synchronous motor

1. IP54 protection level, more stable and reliable than IP23 in harsh environments.

2. Oil-cooled design, use lubricating oil to cool the motor, the operating temperature of the motor is more stable, the life is longer, there is no motor axial fan, so there is no loss of energy efficiency of the axial fan.

3. Coaxial design with the main rotor of the air end, without coupling, loss of energy efficiency of the gearbox.

4. Using ceramic plated bearings to completely eliminate the effect of shaft current on bearings.

5. Using 38UH magnetic steel material, temperature resistance 180 ℃.

Customized vector inverter

Customized vector inverter

1. Professional customization, perfect match with motor.

2. Fully monitor the parameters of the motor, including the motor temperature, to reduce the risk of the high temperature of the motor.

3. Independent air duct design, strong environmental adaptability.

4. Quick response, the response time is less than 50mS.

5. Large low frequency torque, can output 180% rated torque.

Silent centrifugal fan

Silent centrifugal fan

1. The whole series adopts centrifugal fan, which is more efficient and more energy-saving.

2. Compared with axial fans, centrifugal fans have higher air pressure, lower noise and more energy saving.

3. Controlled by frequency conversion fan, the oil temperature is constant and the service life of lubricating oil is greatly extended.

4. Due to the 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.

Parameter

     DH-Z
     series
Working
pressure
capacitypowernoiseAiroutlet
pipe
diameter
net weightDimensions(mm)
barpsig(m3/min)cfmkWhpdBkglengthwidthheight
DH-55Z116 12.8 452 55 75 65±3G22000 2160 1350 1750 
10 145 10.4 367 
13 189 8.8 311 
DH-75Z116 16.5 583 75 100 68±3G22100 2160 1350 1750 
10 145 13.5 477 
13 189 12.2 431 
DH-90Z116 20.1 710 90 120 70±3DN652400 2420 1530 1720 
10 145 17.3 611 
13 189 15.9 562 
DH-110Z116 23.5 830 110 150 72±3DN803300 2650 1600 1850 
10 145 19.8 699 
13 189 17.6 622 
DH-132Z116 27.8 982 132 175 74±3DN803500 2650 1600 1850 
10 145 24 848 
13 189 20 706 
DH-160Z116 33.3 1176 160 215 75±3DN1004500 3350 1900 1950 
10 145 30 1059 
13 189 28.2 996 
DH-185Z116 38.6 1363 185 250 76±3DN1004600 3350 1900 1950 
10 145 34.4 1215 
13 189 31.8 1123 
DH-200Z116 42.5 1501 200 270 76±3DN1004850 3350 1900 1950 
10 145 40.2 1420 
13 189 35 1236 
DH-220Z116 47.1 1663 220 300 78±3DN1006000 3700 2060 2150 
10 145 42.5 1501 
13 189 37.2 1314 
DH-250Z116 52.5 1854 250 350 78±3DN1006650 3700 2060 2150 
10 145 48.2 1702 
13 189 43 1519 
DH-280ZW116 58 2048 280 375 80±3DN1256700 3700 2060 2150 
10 145 52.3 1847 
13 189 47.8 1688 
DH-315ZW116 66 2331 315 422 82±3DN1257500 3700 2400 2300 
10 145 57.9 2045 
13 189 50.5 1783 
DH-355ZW116 73 2578 355 476 82±3DN1257600 3700 2400 2300 
10 145 65 2295 
13 189 54.8 1935 
DH-400ZW116 85 3000 400 540 82±3DN1508900 4200 2400 2600 
10 145 74 2613 
13 189 66 2330 
DH-450ZW116 95.9 3386 450 600 82±3DN1509200 4200 2400 2600 
10 145 84.1 2970 
13 189 72 2542 
DH-500ZW116 103 3637 500 670 85±3DN20010500 4200 2400 2600 
10 145 95.5 3372 
13 189 77.8 2747 
DH-560ZW116 120 4237 560 750 85±3DN20011000 4200 2400 2600 
10 145 103.1 3640 
13 189 90 3178 


Video

Brochure

FAQ

  • 1. Is it the same as regular machine debugging? (After sale)

    A: 

    Same, just follow the commissioning manual

  • 2. How much does the maintenance cost? Is it high?

    A: 

    Depending on the size of the equipment model, maintenance costs vary

  • 3. What are the maintenance supplies?

    A: 

    Air filter, oil filter, oil separator, screw oil, grease

  • 4. Can the air compressor be turned on on the mobile phone?

    A: 

    Our cloud IoT system supports mobile APP to view the operating status of the unit, and cannot operate the unit

  • 5. Can you see the operation of the air compressor?

    A: 

    Our cloud IoT system supports mobile APP to view the operating status of the unit, and cannot operate the unit

  • 6. Will the motor demagnetize?

    A: 

    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

  • 7. What kind of fan is the fan?

    A: 

    Our DHV-Z series of silent and energy-saving bipolar compressor units use centrifugal fans. The cooling system of the whole machine has been factory tested, and the cooling effect can meet the long-term stable operation at an ambient temperature of 40℃.

  • 8. The failure rate is higher than ordinary, right?

    A: 

    The two-stage compressor unit uses a large-rotor low-speed main engine, with longer bearing life and more stable operation

  • 9. What is an oil-cooled motor?

    A: 

    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.

  • 10. What is the adjustment range of the frequency conversion?

    A: 

    The frequency adjustment range of the permanent magnet frequency conversion unit is 40~100%

  • 11. Whether the motor is the first energy efficiency IE4 motor is the first energy efficiency IE4 motor

    A: 

    Our permanent magnet motor efficiency value reaches IE4 standard

  • 12. Differences between oil-cooled motors and air-cooled motors.

    A: 

    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.

  • 13. Motor cooling method

    A: 

    The motor of Dream's DHV-Z series energy-saving and silent bipolar compressor unit uses an air-cooled motor

  • 14. Air compressor energy efficiency rating

    A: 

    Dream's DHV-Z series energy-saving silent bipolar compressor unit has an energy efficiency rating of level 1. You can find our company's filing information on the energy efficiency filing 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

E-mail: [email protected]

WhatsApp: ++86 13671551445

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

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