China 110Kw/150Hp Two-Stage Rotary Screw Air Compressor Permanent Magnetic Variable Frequency 380V Air Cooled Supplier, Factories

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China 110Kw/150Hp Two-Stage Rotary Screw Air Compressor Permanent Magnetic Variable Frequency 380V Air Cooled Supplier, Factories

SHORT DESCRIPTION:

High-efficiency permanent magnet motor, significant energy-saving effect, compact size and low noise design

High-efficiency motor with remarkable energy-saving effect

At rated speed, permanent magnet motor efficiency is higher than ordinary motors.
Even at low speeds, the permanent magnet motor maintains high efficiency. When air consumption decreases, it still maintains extremely high efficiency, creating a clear efficiency gap compared to common variable frequency motors, delivering effective energy savings for the compressor.

Small volume, low noise

With integrated structure and high-efficiency permanent magnet motor configuration, it features small size, space-saving design and easy disassembly. Equipped with an efficient permanent magnet variable frequency controller, it adjusts motor speed according to exhaust volume, achieving lower operating noise than conventional models.

a. The permanent magnet motor uses high-performance NdFeB permanent magnets, maintaining no demagnetization at 120℃ with a service life of over 15 years.

b. Stator coils use special inverter corona-resistant enamelled wire, ensuring excellent insulation performance and longer service life.

c. Soft start is realized, with motor current not exceeding full-load current during operation, greatly reducing impact on power grid equipment and avoiding damage to electrical devices.

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Product Description

Energy-saving Advantages

The permanent magnet motor maintains high efficiency at low speeds, delivering obvious energy-saving advantages under low air volume conditions.
Frequency range covers 0%-100% (vs. 60%-100% for common variable frequency compressors).
Saves 22%-40% energy compared with fixed-speed compressors.
Saves 5%-15% energy compared with common inverter compressors.
Larger system volume fluctuations result in more obvious energy-saving effects.

Unloading Energy Saving (Inverter)

Traditional stationary air compressors have idling periods during gas consumption fluctuations, requiring 45% electricity even when idling. The permanent magnet VFD air compressor eliminates unloading and energy waste through inverter control; larger units achieve greater savings.

Pressure Control Bandwidth

Fixed-speed compressors require a minimum 1Bar control pressure band to avoid impact on units and power grids, leading to wider pressure ranges when multiple machines operate together. The permanent magnet VFD series uses inverter control with unlimited stops, operating at a single pressure point. Every 0.14Bar reduction in pressure bandwidth saves 1% energy.

Energy-saving Startup (Inverter)

Air compressor starting current is 3-6 times the rated current, and frequent starts waste large amounts of energy. The variable frequency type uses soft start without frequent start-stop, with maximum current not exceeding rated working current, eliminating energy waste and reducing impact on power grid equipment.

Core Commitments

Professional Service

After-sales service is always a key concern, and timely support is essential. We have professional after-sales engineers and complete spare parts inventory. Our service branches provide timely, professional service and technical training to every customer.

Adequate Resource Supply

Using genuine spare parts and consumables is the basic guarantee for long-term compressor operation. We maintain normal and efficient operations with sufficient spare parts and consumables reserves to meet customer needs at any time.

Product Quality Guarantee

High-quality products are the core foundation of business operations. Every product undergoes strict performance and operation tests from raw material procurement and outsourced parts processing to final production, ensuring high-quality machines.

Application Fields

Textile Medical Pharmaceutical Materials Power Electronics Spraying Tobacco Instruments Food Processing Feed Processing Machinery Processing

Technical Specifications

Model	10A	15A	20A	25A	30A	40A	50A	60A
Free air delivery / Discharge pressure (m³/min / MPa)	1.2/0.7	1.65/0.7	2.5/0.7	3.2/0.7	3.8/0.7	5.3/0.7	6.8/0.7	7.4/0.7
	1.1/0.8	1.5/0.8	2.3/0.8	3.0/0.8	3.6/0.8	5.0/0.8	6.2/0.8	7.0/0.8
	0.95/1.0	1.3/1.0	2.1/1.0	2.7/1.0	3.2/1.0	4.5/1.0	5.6/1.0	6.2/1.0
	0.8/1.25	1.1/1.25	1.9/1.25	2.4/1.25	2.7/1.25	4.0/1.25	5.0/1.25	5.6/1.25
Lubricating oil quantity (L)	4	7.5	14	14	14	30	30	30
Driving mode	Direct drive
Power supply	380V/50Hz/3P or customized
Power (kW)	7.5	11	15	18.5	22	30	37	45
Startup mode	Y-Δ start-up
Dimension (mm)	850670870	1100750920		12508501160			135010001190
Outlet diameter	G1/4	G1/4	G1	G1	G1	G1-1/4	G1-1/4	G1-1/4

Model	75A	100A	120A	150A	175A	200A	250A	300A	350A
Free Air Delivery / Discharge Pressure (m³/min / MPa)	10.0/0.7	13.4/0.7	16.2/0.7	21.0/0.7	24.5/0.7	28.7/0.7	32.0/0.7	36.0/0.7	42.0/0.7
	9.6/0.8	12.6/0.8	15.0/0.8	19.8/0.8	23.2/0.8	27.6/0.8	30.4/0.8	34.3/0.8	40.5/0.8
	8.5/1.0	11.2/1.0	13.8/1.0	17.4/1.0	20.5/1.0	24.6/1.0	27.4/1.0	30.2/1.0	38.2/1.0
	7.6/1.25	10.0/1.25	12.3/1.25	14.8/1.25	17.4/1.25	21.5/1.25	24.8/1.25	27.7/1.25	34.5/1.25
Lubricating Oil Quantity (L)	65	65	72	90	90	110	110	125	125
Driving Mode	Direct drive
Power (kW)	55	75	90	110	132	160	185	220	250
Startup Mode	Y-Δ Start-up
Dimension (mm)	180012301570	190012301570		230014701840		265016502045		330021002190
Weight (kg)	1073	1272	1327	1801	1848	2400	2600	3100	3300
Outlet Diameter	G2	G2	G2	G2-1/2	G2-1/2	G2-1/2	G2-1/2	DN100	DN100

Frequently Asked Questions

How does a permanent magnet motor save energy at lower speeds?

The permanent magnet motor maintains high operating efficiency even at low speeds. This provides distinct energy-saving benefits under low air volume conditions compared to traditional fixed-speed compressors.

What is the advantage of a 0%-100% frequency range?

Our permanent magnet VFD air compressors cover a wide frequency range from 0% to 100%, whereas common variable frequency compressors only support 60% to 100%. This wider scope allows for exact output adjustments and superior energy performance.

How much energy can be saved with variable frequency technology?

The system saves 22% to 40% energy compared to fixed-speed compressors, and 5% to 15% energy compared to typical inverter compressors. Energy-saving effects are even more pronounced in systems with larger volume fluctuations.

Why is a soft startup important for energy savings?

Traditional starting currents can be 3 to 6 times the rated current, wasting significant power. A variable frequency soft start ensures the maximum current does not exceed the rated working current during startup, eliminating energy waste and protecting grid equipment.

How does pressure control bandwidth affect energy consumption?

Fixed-speed compressors require at least a 1Bar control band to prevent grid impact. The permanent magnet VFD series operates smoothly at a single pressure point. Reducing the pressure bandwidth by every 0.14Bar translates to a 1% energy saving.

What industries commonly use these air compressors?

These machines are widely applied in fields such as textile, medical, pharmaceutical materials, power, electronics, spraying, tobacco, instruments, food processing, feed processing, and machinery processing.

Product Detail

China 110Kw/150Hp Two-Stage Rotary Screw Air Compressor Permanent Magnetic Variable Frequency 380V Air Cooled Supplier, Factories

Product Description