Name: VSD Screw Air Compressor
Brand: Ziqi Compressor

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VSD Screw Air Compressor

ZIQI oil injection rotary screw air compressor,80% components adopted global known reliable brand;

The core part:Screw air end,adopt USA Ingersoll Rand screw brand,origin from Germany GHH RAND,it is regarded as the biggest and earliest screw air end manufacturer in the world

Working Power

7.5-18.5【KW】

Free Air delivery

0.9-3.2【m3/min】

Working pressure

0.7-1.3 【MPa】

Transmission

Belt

Cooling

Air-cooling

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VSD screw air compressors are designed to optimize compressed air systems by adjusting motor speed in real time to match actual compressed air demand. Using variable speed drive VSD technology, these variable speed air compressors continually measure system pressure and automatically adjust speed to meet changing operating conditions, helping reduce power consumption and overall energy consumption compared with a fixed speed compressor.

Unlike traditional rotary screw air compressors that operate at full capacity regardless of demand, VSD air compressors deliver compressed air only when needed, improving energy efficiency and supporting long-term energy savings. By responding instantly to fluctuations in compressed air demand, variable speed compressors maintain stable system pressure while minimizing unnecessary load on the compressed air system.

With precise speed control and real time response, VSD screw air compressors provide efficient operation for industrial users seeking lower energy use, improved control, and dependable performance across varying production requirements.

Product Details Product Applications

ZIQI GAS Series Flagship Screw Compressor

Flagship Configuration

German GHH Air End & WEG IE4 Motor. The Ultimate Industrial Power.

The Heart

German GHH Air End

The Legend of Efficiency: Featuring the 5:6 asymmetric tooth profile. This design minimizes leakage triangles and maximizes volumetric efficiency, delivering more air (F.A.D) with less energy input.

Origin: Original German Engineering
Life: 100,000+ Hours Design Life
Bearings: Heavy-duty SKF Bearings

The Power

WEG IE4 Super Premium

Unmatched Savings: Equipped with WEG IE4 motors as standard. The ultra-low operational losses translate into substantial annual electricity savings, guaranteeing a superior ROI compared to standard IE3 motors.

Efficiency: IE4 Super Premium Level
Protection: IP55 Dust & Water Proof
Insulation: Class F (Temperature Rise B)

Why ZIQI GAS Flagship is the Top Choice?

The ZIQI GAS Series stands out in the market by combining the Original German GHH Air End with the WEG IE4 Super Premium Efficiency Motor. This configuration addresses the two biggest pain points in the industry: Reliability and Energy Consumption.

While common compressors use standard IE3 motors and copycat air ends, ZIQI's flagship configuration ensures a longer lifespan (SKF bearings) and significantly lower electricity bills, offering the lowest Total Cost of Ownership (TCO) in its class.

Vector Control VSD

Smart inverter adjusts speed in 3ms. Eliminates unloading waste and saves up to 35% energy.

Low Noise Design

Fully enclosed soundproof canopy with VFC low-speed operation reduces noise to 62dB.

Intelligent Control

LCD Touch screen controller monitors pressure, temp, and maintenance schedule in real-time.

Configuration Comparison

See the Difference in Build Quality

Key Component	Standard Market Brand	ZIQI GAS Flagship
Air End Brand	Domestic Copy Brands	German GHH (Original)
Motor Efficiency	IE2 or IE3	WEG IE4 Super Premium
Motor Protection	IP23 / IP54	IP55 (Harsh Duty)
Inverter Tech	V/F Control (Slow)	Vector Control (3ms)

Technical Specifications

GAS VFC Series (Variable Frequency Drive)

Model VFC	Motor Power		Air Delivery (m³/min) @ Pressure				Drive	Dimension (LWH mm)	Weight (kg)	Outlet
Model VFC	kW	HP	0.7 MPa	0.8 MPa	1.0 MPa	1.3 MPa	Drive	Dimension (LWH mm)	Weight (kg)	Outlet
GAS-7.5A VFC	7.5	10	0.13 - 1.3	0.12 - 1.2	0.11 - 1.1	0.09 - 0.9	Belt	10958451120	310	G3/4"
GAS-11A VFC	11	15	0.18 - 1.8	0.17 - 1.7	0.15 - 1.5	0.12 - 1.2	Belt	10958451120	320	G3/4"
GAS-15A VFC	15	20	0.27 - 2.7	0.25 - 2.5	0.23 - 2.3	0.20 - 2.0	Belt	12608501220	590	G1"
GAS-18.5A VFC	18.5	25	0.32 - 3.2	0.30 - 3.0	0.26 - 2.6	0.24 - 2.4	Belt	12608501220	600	G1"
GAS-22A VFC	22	30	0.36 - 3.6	0.35 - 3.5	0.30 - 3.0	0.26 - 2.6	Belt	12608501220	610	G1"
GAS-30A VFC	30	40	0.58 - 5.8	0.55 - 5.5	0.50 - 5.0	0.39 - 3.9	Belt	15009701390	860	G1?"
GAS-37A VFC	37	50	0.68 - 6.8	0.63 - 6.3	0.57 - 5.7	0.50 - 5.0	Belt	15009701390	875	G1?"
GAS-45A VFC	45	60	0.79 - 7.9	0.74 - 7.4	0.67 - 6.7	0.61 - 6.1	Belt	15009701390	960	G1?"
GAS-55A/W	55	75	1.0 - 10.0	0.9 - 9.0	0.86 - 8.6	0.73 - 7.3	Direct	215013261766	1730	DN50
GAS-75A/W	75	100	1.25 - 12.5	1.24 - 12.4	1.0 - 10.0	0.96 - 9.6	Direct	215013261766	2122	DN50
GAS-90A/W	90	120	1.7 - 17.0	1.56 - 15.6	1.39 - 13.9	1.08 - 10.8	Direct	254514501900	2770	DN65
GAS-110A/W	110	150	1.93 - 19.3	1.91 - 19.1	1.69 - 16.9	1.37 - 13.7	Direct	254514501900	3075	DN65
GAS-132A/W	132	180	2.33 - 23.3	2.3 - 23.0	1.9 - 19.0	1.68 - 16.8	Direct	254514501900	3135	DN65
GAS-160A/W	160	215	2.85 - 28.5	2.65 - 26.5	2.32 - 23.2	1.89 - 18.9	Direct	310018002065	3540	DN80
GAS-185A/W	180	250	3.2 - 32.0	2.86 - 28.6	2.66 - 26.6	2.3 - 23.0	Direct	310018002065	4040	DN80

* Note: "W" denotes Water-cooling option available. VFC models provide variable flow to match demand.

Model VFC	Max Pressure			F.A.D (Variable Flow)		Power		Drive	Dim (mm)			Weight (kg)	Noise dB(A)	Outlet
Model VFC	MPa	bar	psi	m3/min	cfm	HP	kW	Drive	L	W	H	Weight (kg)	Noise dB(A)	Outlet
GAS-7.5A VFC	0.7	7	102	0.13 - 1.3	4.6 - 46	10	7.5	Belt	1095	845	1120	310	62±2	G3/4"
	0.8	8	116	0.12 - 1.2	4.2 - 42
	1.0	10	145	0.11 - 1.1	3.9 - 39
	1.3	13	189	0.09 - 0.9	3.2 - 32
GAS-11A VFC	0.7	7	102	0.18 - 1.8	6.4 - 64	15	11	Belt	1095	845	1120	320	63±2	G3/4"
	0.8	8	116	0.17 - 1.7	6.0 - 60
	1.0	10	145	0.15 - 1.5	5.3 - 53
	1.3	13	189	0.12 - 1.2	4.2 - 42
GAS-15A VFC	0.7	7	102	0.27 - 2.7	9.5 - 95	20	15	Belt	1260	850	1220	590	63±2	G1"
	0.8	8	116	0.25 - 2.5	8.8 - 88
	1.0	10	145	0.23 - 2.3	8.1 - 81
	1.3	13	189	0.20 - 2.0	7.1 - 71
GAS-18.5A VFC	0.7	7	102	0.32 - 3.2	11 - 113	25	18.5	Belt	1260	850	1220	600	64±2	G1"
	0.8	8	116	0.30 - 3.0	10 - 106
	1.0	10	145	0.26 - 2.6	9 - 92
	1.3	13	189	0.24 - 2.4	8 - 85
GAS-22A VFC	0.7	7	102	0.36 - 3.6	12 - 127	30	22	Belt	1260	850	1220	610	64±2	G1"
	0.8	8	116	0.35 - 3.5	12 - 124
	1.0	10	145	0.30 - 3.0	10 - 106
	1.3	13	189	0.26 - 2.6	9 - 92
GAS-30A VFC	0.7	7	102	0.58 - 5.8	20 - 205	40	30	Belt	1500	970	1390	860	65±2	G1?"
	0.8	8	116	0.55 - 5.5	19 - 194
	1.0	10	145	0.50 - 5.0	17 - 177
	1.3	13	189	0.39 - 3.9	13 - 138
GAS-37A VFC	0.7	7	102	0.68 - 6.8	24 - 240	50	37	Belt	1500	970	1390	875	65±2	G1?"
	0.8	8	116	0.63 - 6.3	22 - 222
	1.0	10	145	0.57 - 5.7	20 - 201
	1.3	13	189	0.50 - 5.0	17 - 177
GAS-45A VFC	0.7	7	102	0.79 - 7.9	27 - 279	60	45	Belt	1500	970	1390	960	66±2	G1?"
	0.8	8	116	0.74 - 7.4	26 - 261
	1.0	10	145	0.67 - 6.7	23 - 237
	1.3	13	189	0.61 - 6.1	21 - 215
GAS-55A W/VFC	0.7	7	102	1.0 - 10.0	35 - 353	75	55	Direct	2150	1326	1766	1730	72±2	DN50
	0.8	8	116	0.9 - 9.0	31 - 318
	1.0	10	145	0.86 - 8.6	30 - 304
	1.3	13	189	0.73 - 7.3	25 - 258
GAS-75A W/VFC	0.7	7	102	1.25 - 12.5	44 - 441	100	75	Direct	2150	1326	1766	2122	72±2	DN50
	0.8	8	116	1.24 - 12.4	43 - 438
	1.0	10	145	1.0 - 10.0	35 - 353
	1.3	13	189	0.96 - 9.6	33 - 339
GAS-90A W/VFC	0.7	7	102	1.7 - 17.0	60 - 600	120	90	Direct	2545	1450	1900	2770	75±2	DN65
	0.8	8	116	1.56 - 15.6	55 - 551
	1.0	10	145	1.39 - 13.9	49 - 491
	1.3	13	189	1.08 - 10.8	38 - 381
GAS-110A W/VFC	0.7	7	102	1.93 - 19.3	68 - 682	150	110	Direct	2545	1450	1900	3075	76±2	DN65
	0.8	8	116	1.91 - 19.1	67 - 675
	1.0	10	145	1.69 - 16.9	59 - 597
	1.3	13	189	1.37 - 13.7	48 - 484
GAS-132A W/VFC	0.7	7	102	2.33 - 23.3	82 - 823	180	132	Direct	2545	1450	1900	3135	77±2	DN65
	0.8	8	116	2.3 - 23.0	81 - 812
	1.0	10	145	1.9 - 19.0	67 - 671
	1.3	13	189	1.68 - 16.8	59 - 593
GAS-160A W/VFC	0.7	7	102	2.85 - 28.5	100 - 1006	215	160	Direct	3100	1800	2065	3540	77±2	DN80
	0.8	8	116	2.65 - 26.5	93 - 936
	1.0	10	145	2.32 - 23.2	81 - 819
	1.3	13	189	1.89 - 18.9	66 - 667
GAS-185A W/VFC	0.7	7	102	3.2 - 32.0	113 - 1130	250	180	Direct	3100	1800	2065	4040	77±2	DN80
	0.8	8	116	2.86 - 28.6	101 - 1010
	1.0	10	145	2.66 - 26.6	94 - 939
	1.3	13	189	2.3 - 23.0	81 - 812

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