Single Stage Permanent Magnetic Variable Speed Screw Air Compressor Supply

DESCRIPTION PARAMETER VIDEO BROCHURE Q&A

Product Features

■ Durable, efficient and stable air end.

■ The permanent magnet motor has higher energy efficiency, saves your electricity, IP54, B-level temperature rise is suitable for heavy dust, high temperature and other harsh environments.

■ 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.

Applications

Food & Beverage Processing: Our permanent magnet VFD single-stage screw compressor provides clean, reliable air for pneumatic conveying, packaging, and cleaning equipment in food and beverage factories, ensuring hygiene and efficiency.
Textile Industry: Powers textile machinery such as air-jet looms, yarn winding, and fabric finishing equipment, enabling precise control and high-speed production in textile mills.
Pharmaceutical Manufacturing: Ideal for cleanroom environments, it supplies compressed air for pneumatic tools, filling machines, and packaging lines, ensuring compliance with strict hygiene standards in pharmaceutical production.
Oil & Gas Exploration: Utilized in drilling rigs and refineries, the compressor provides reliable air power for pneumatic drills, valves, and instrumentation, enhancing safety and operational efficiency in oil and gas exploration.

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.

Permanent magnet synchronous motor

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

2. Low temperature rise design, motor temperature rise is less than 60K, higher efficiency, extending the service life of the motor.

3. Use ceramic-plated bearings to completely eliminate the impact of shaft current on the bearings.

4. It is made of rare-earth permanent magnet materials, with large torque during starting and running, and low current during starting and running.

5. Reasonable magnetic field design, magnetic density distribution, energy-saving motor has a wider working frequency range and low operating noise.

6. Cooperate with the operation of the frequency converter to realize the frequency conversion soft start, avoid the strong mechanical impact of the machine and equipment when the motor is started at full voltage, which is beneficial to protect the mechanical equipment, reduce equipment maintenance, and improve the reliability of the equipment.

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.

Advanced and reliable electronic control system

1. The large-size color LCD touch screen has a good human-machine communication interface, and the touch screen has anti-error touch and sleep functions.

2. Customized vector inverter, perfectly matched with the motor, low frequency and large torque, can output 180% rated torque;

3. Fully monitor various parameters of the machine, including voltage detection, three-phase unbalance detection, overpressure, overtemperature, etc., without the need for special supervision

4. Configure the Internet of Things, you can view the unit operating status on your mobile phone

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

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

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: 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

DMV-G series	Working pressure		Capacity		power		noise	Air outlet pipe diameter	net weight	dimensions(mm)
	bar	psig	（m3/min)	cfm	kW	hp	dB		kg	length	width	height
DMV-55G	8	116	4.1-10.2	144-360	55	75	68±3	G 2″	1000	1800	1170	1400
	10	145	3.5-8.8	124-311
	13	189	3-7.7	106-242
DMV-75G	8	116	5.6-13.3	198-470	75	100	72±3	G 2″	1100	1800	1170	1400
	10	145	4.8-12.1	171-427
	13	189	4-9.9	140-350
DMV-90G	8	116	6.4-16	226-565	90	120	72±3	G 2″	1600	2200	1400	1580
	10	145	5.5-13.8	195-487
	13	189	5-12.5	177-441
DMV-110G	8	116	8.1-20.3	287-717	110	150	74±3	G2 1/2"	1700	2200	1400	1580
	10	145	7-17.6	249-622
	13	189	6.2-15.4	218-544

DMV-132G	8	116	9.6-23.6	339-833	132	175	74±3	G2 1/2"	1850	2200	1400	1580
	10	145	8.4-21	297-742
	13	189	6.7-16.7	236-590

DMV-160G	8	116	11.3-28.3	400-999	160	215	77±3	DN80	2800	2650	1488	1900
	10	145	10--25	353-883


	13	189	8.4-21.1	298-745
DMV-185G	8	116	12.8-31.9	451-1127	185	250	77±3	DN80	3100	2650	1488	1900
	10	145	11.4-28.5	403-1006
	13	189	9.9-24.8	350-876
DMV-200G	8	116	13.7-34.7	484-1225	200	270	77±3	DN80	3200	2650	1488	1900
	10	145	13-32.6	461-1151
	13	189	11.2-28	396-989
DMV-250G	8	116	18.1-44.1	639-1557	250	350	78±3	DN100	4200	3000	1740	2100
	10	145	14.6-36.5	516-1289
	13	189	13.5-34	477-1201

Video

Brochure

Single Stage Direct Drive Screw Air Compressor Brochure

DM(V)-G/DHV-G Series Single Stage Direct Drive/Permanent Magnetic Screw Air Compressor

Download

FAQ

1. Material and life of permanent magnet motor

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
2. Comparison of oil-cooled 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.
3. Can you work 24 hours a day?

A:
YES
4. How many years can this machine be used?

A:
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?

A:
Please refer to our manual.
6. Is it possible to achieve constant pressure air supply?

A:
Variable frequency unit can realize constant pressure air supply
7. What is the range of pressure fluctuations?

A:
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

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

9. Will it degauss in 3-5 years?

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

A:
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?

A:
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)

A:
For special models, please consult our sales manager.
13. Is the equipment air-cooled or water-cooled

A:
We can produce both air-cooled and water-cooled models. Please consult our sales manager for specific product information.
14. Motor cooling method

A:
Depending on the model, there are air-cooled motors and oil-cooled motors.
15. Is the motor an energy efficiency IE4 motor?

A:
The energy efficiency of permanent magnet motors reaches IE4 level.
16. Cases in the industry and region

A:
Please check Dream official website

Tags:

Permanent Magnet VFD Rotary Screw Compressor Energy Efficient Air Supply Quiet Operation Precise Control Industrial Applications Variable Frequency Drive Single-Stage Screw Compressor

Single Stage Permanent Magnetic Variable Speed Rotary Screw Compressor