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A Integrated Compressed Air Solution

The primary function of an air compression system is to compress atmospheric air to a higher pressure for use in various industrial and mechanical applications.
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Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)
Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)

Oil-injected Single Stage Rotary Screw Compressor (PM VSD/FSD)

Model:DHV-G/A & DM(V)-G Series
Brand:DREAM
Working Pressure:8~13 [ bar ] 116.0~188.5 [ psig ]
Air Capacity (FAD):0.2~61.0 [ m³/min ] 7.1~2154.2 [ cfm ]
Power:7.5~75 [ KW ] 10.2~102.0 [ hp ]
Other parameters, please inquiry us.

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Overview
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Q&A

The DHV-G/A series features a permanent magnet variable frequency single-stage compression screw air compressor that delivers stable air pressure with no impact during startup. It boasts variable flow control and excellent alternating current power supply voltage adaptability.

Equipped with a silent centrifugal fan, this compressor ensures energy-saving constant pressure output. The oil-cooled permanent magnet variable frequency motor reaches IP65 protection, offering high durability. The large cooler design incorporates a hot and cold partition for efficient heat management.

The man-machine interface touchscreen controller provides real-time monitoring of the operation status, ensuring you stay informed and in control at all times.



Product Features

■ IP65 oil-cooled permanent magnet synchronous motor is integrally connected with the air end, with high transmission efficiency and durability.

■ Double frequency conversion of air end and fan, which can save more than 30% energy than ordinary power frequency air compressor.

■ Compact structure, small machine and small footprint. Easy maintenance, maintenance can be done by opening the door.

■ Multi-wing centrifugal fan, high wind pressure, fast heat dissipation, noise 20dBA lower than ordinary screw;

■ The standard temperature control valve with the most classic sliding three-way structure can effectively avoid the change of discharge temperature. The mixed-flow structure is used to effectively prevent the phenomenon of starting oil temperature rising and the machine being stuck due to lack of oil when the machine is started.

■ Control and electrical system: can be set in Chinese / English bilingual, can realize the joint control of up to 16 machines and supporting post-processing.

The industry's leading dual-stage mainframe

The industry's leading dual-stage mainframe

1. The unique design of the intermediate coolant spray curtain reduces the temperature of the air, and the compression process is close to the most energy-saving isothermal compression. In principle, the two-stage compression saves 5%~8% of energy than the single-stage compression;

2.Two-stage compression, small compression ratio, less leakage, bearing load is small, bearing life is greatly improved;

3.Adopt the design idea of "big rotor, big bearing, low speed", reduce noise and vibration, increase the life and stability of the main engine;

4.The rotor tooth surface is processed by grinding machine to create a high-precision rotor, which is the first guarantee of high efficiency and stability of the main machine;

5.The use of new asymmetric rotor tooth type, high-precision coordinate measuring machine comprehensive measurement, excellent quality.

Special valve block

Special valve block

1.Screw compressor special intake valve, the unit is easy to start, with automatic adjustment function, low flow rate, low pressure loss, reduce energy consumption, low intake noise;

2. Reliable minimum pressure maintenance valve, low pressure loss, accurate control, super fast return seat, to ensure that the user does not return the gas;

3.Temperature control valve (part) : mixed-flow temperature control valve: The unit is configured with mixed-flow temperature control valve to ensure that the unit is more convenient to start in a low temperature environment, and ensure the oil supply of the unit at any time; By controlling the oil supply temperature of the main engine, the unit is guaranteed to be in the best performance state.

Advanced and reliable electronic control system

Advanced and reliable electronic control system

1. Large color LCD touch screen, with good man-machine interface, touch screen with anti-miscontact and sleep function;

2. Customized vector inverter, perfectly matched with the motor, low frequency and high torque:

3. Fully monitor the parameters of the machine, including voltage detection, three-phase imbalance detection, over pressure, over temperature, etc., without special care;

4. Configure the internet of things, you can view the unit running status on the mobile phone;

5. Independent air duct design, suitable for various working conditions.

Silent centrifugal fan

Silent centrifugal fan

1.Adopt centrifugal fan, new separate flow cooling fan design, with special cooler, cooling effect is better, more energy saving;

2.Compared with axial fans, centrifugal fans have higher wind pressure and lower noise;

3.Frequency conversion fan control, constant oil temperature, prolong the service life of lubricating oil;

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

High efficiency permanent magnet synchronous  motor

High efficiency permanent magnet synchronous motor

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

2. Low temperature rise design, higher efficiency, extend the service life of the motor;

3. Use ceramic plated bearings to completely eliminate the influence of shaft current on bearings;

4.Made of rare earth permanent magnet material, the torque is large when starting and running, and the current is small when starting and running;

5.Reasonable magnetic field design, magnetic density distribution, energy-saving motor operating frequency range is wider, low running noise;

6. With the operation of the frequency converter, the frequency conversion soft start is realized, which avoids the strong mechanical impact of the machine and equipment when the motor is started at full pressure, which is conducive to protecting the mechanical equipment, reducing equipment maintenance and improving the reliability of the equipment.

High quality and efficient coupling

High quality and efficient coupling

1.The coupling is a torsional elastic coupling with fail-safe function. It can effectively damp and reduce the vibration and shock generated during operation.

2.The elastomer is only subject to pressure and can withstand greater load, and the drum teeth of the elastomer can avoid stress concentration.

Good quality three filter

Good quality three filter

1.The filtration area of the air filter exceeds 150% of the normal need, the inlet pressure loss is low, and the energy efficiency is good;

2.The oil filter is made of imported glass fiber material, and the rated capacity of the oil filter is ≥1.3 times the circulating oil volume, with high filtration accuracy and good durability;

3.Imported glass fiber oil core, good filtering effect, low pressure loss of oil core;

4.Three filter position design is reasonable, easy maintenance, reduce downtime.



What is the basic working principle of the Dream single-stage screw air compressor?
The Dream single-stage screw air compressor operates based on the principle of screw compression. It uses a pair of meshing screws (a male and a female rotor) to compress air. As the rotors turn, they reduce the volume of air in the compression chamber, thereby increasing its pressure.
What are the main features of this compressor?
The Dream single-stage screw air compressor features variable-speed operation with a permanent magnet motor (PM), which provides high efficiency and energy savings. It also has a compact design, low noise levels, and easy maintenance.
How does the variable-speed drive (VSD) technology work?
The VSD technology adjusts the compressor's operating speed to match the air demand. This ensures that the compressor only runs as fast as necessary, reducing energy consumption and wear and tear on the components.
What is the efficiency rating of this compressor?
The efficiency rating of the Dream single-stage screw air compressor is high. Specific values can be found in the product's technical specifications.
Can this compressor be used in a wide range of applications?
Yes, the Dream single-stage screw air compressor is suitable for various applications, including manufacturing, construction, automotive, food processing, and more. Its versatility makes it a popular choice for many industries.
What is the maximum working pressure of this compressor?
The maximum working pressure of the Dream single-stage screw air compressor is 200 KW, which is sufficient for most industrial applications.
How does this compressor handle noise and vibration?
The compressor is designed with advanced noise and vibration reduction technologies. It features a robust casing, precision-balanced rotors, and vibration isolators to minimize noise and vibration levels.
What kind of maintenance does this compressor require?
Regular maintenance includes checking and replacing the air filter, oil filter, and lubricant. It also involves inspecting the rotors, bearings, and seals for any signs of wear or damage. The compressor's user manual provides a detailed maintenance schedule.
How often should the filters be replaced?
The filters should be checked regularly and replaced as needed,as indicated by the compressor's maintenance indicator.
Is there a warranty for this compressor?
Yes, the Dream single-stage screw air compressor comes with a range 1-5years warranty . The warranty terms and conditions can be found in the product's documentation.
Can I get technical support if I encounter issues with the compressor?
Absolutely. Dream provides comprehensive technical support for all its products. You can contact our technical support team via email, phone, or live chat for assistance with any issues you may encounter.
How does this compressor compare to other single-stage screw compressors in the market?
The Dream single-stage screw air compressor stands out in the market due to its high efficiency, reliability, and compact design. Its variable-speed operation and permanent magnet motor provide significant energy savings compared to traditional fixed-speed compressors.
Is this compressor easy to install?
Yes, the Dream single-stage screw air compressor is designed for easy installation. It comes with a detailed installation guide and all necessary components. Our technical team is also available to provide installation assistance if needed.
What are the benefits of using a single-stage screw compressor over a multi-stage compressor?
Single-stage screw compressors, such as the Dream model, are typically more compact and have fewer components than multi-stage compressors. This makes them easier to install, maintain, and operate. They are also more cost-effective for applications that do not require extremely high pressures. However, the choice between single-stage and multi-stage compressors ultimately depends on the specific requirements of your application.
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