The ZIQI GAT Series represents the pinnacle of two-stage compression technology. While the industry settles for standard adiabatic compression, ZIQI pursues the Isothermal Ideal — splitting the compression ratio between two distinct stages with interstage cooling to minimize internal leakage and maximize volumetric efficiency to over 95%, delivering 15% more air for the same motor power.
With 17 models from 22 to 355 kW and an industry-leading 5 pressure options (0.6–1.3 MPa), the GAT series covers applications from precision electronics manufacturing to heavy-duty mining. Every model features a WEG IE4 Super Premium motor with direct 1:1 flexible coupling — no gearbox losses, no belt slippage. VSD (Variable Frequency Drive) options are available on all models for an additional 15–20% energy savings at partial loads. For standard single-stage compressors, see our GAS fixed-speed series. For high-pressure needs above 1.3 MPa, see our GAH high-pressure series.
15% Higher Efficiency: Compresses air in two stages (Low & High pressure) with dedicated interstage cooling.
Design: 5:6 Asymmetric Rotor Profile
Benefit: Lower Compression Ratio per stage
Longevity: Reduced Bearing Load (100k Hours lifespan)
Ultra-Low Loss: Paired with world-class WEG IE4 Super Premium Efficiency motors for maximum energy savings.
Standard: IE4 Super Premium Efficiency
Protection: IP55 Heavy-Duty Dust & Water Proof
Frame: Robust Cast Iron Construction
Combining Two-Stage air ends with VSD technology can save up to 30–40% energy vs standard fixed-speed single-stage screw compressors.
Lower compression ratio per stage means smoother operation, less vibration, and significantly reduced noise levels (as low as 64 dB for the 22 kW model).
Dual-stage design ensures extremely stable air discharge pressure (±0.01 MPa), ideal for high-precision CNC, electronics, and pharmaceutical manufacturing.
Automotive, steel, and general manufacturing plants requiring continuous high-volume air at 0.7–0.8 MPa. The two-stage efficiency advantage compounds at scale — a 200 kW GAT saves over $20,000/year vs single-stage.
GMP-compliant facilities needing stable, clean compressed air. The GAT's low discharge temperature and consistent pressure output reduce moisture and maintain product quality in cleanrooms.
Precision air supply for wafer handling, PCB assembly, and cleanroom environments. Pressure stability of ±0.01 MPa prevents defects in sensitive processes. 0.6 MPa option available for low-pressure needs.
Large-volume air for pneumatic conveying, blasting, and heavy tools. GAT models up to 355 kW deliver 73 m³/min at 0.6 MPa. The 1.3 MPa option serves high-pressure underground applications without a booster.
Single-Stage vs. ZIQI GAT Two-Stage
| Performance Metric | Standard Single-Stage | ZIQI GAT Two-Stage |
|---|---|---|
| Compression Efficiency | Standard (Adiabatic) | High (Near-Isothermal) |
| Volumetric Efficiency | ~85% | ~95% (+15% more air) |
| Discharge Temperature | High (ambient +25–35°C) | Low (ambient +15°C air / <40°C water) |
| Internal Leakage | High Pressure Delta | Minimal (split ratio) |
| Bearing Load | Full pressure ratio on single stage | 50% load per stage → 100k hr lifespan |
| Pressure Stability | ±0.02–0.03 MPa | ±0.01 MPa (ultra-stable) |
| Motor Standard | IE2/IE3 typical | IE4 WEG Super Premium (all models) |
| Pressure Range | 0.7–1.0 MPa (3 options) | 0.6–1.3 MPa (5 options) |
| Energy Cost (110 kW, 6000 hr/yr) | ~$84,500/year | ~$71,200/year (save $13,300+) |
Identify the maximum pressure your process requires. The GAT offers 5 options: 0.6, 0.7, 0.8, 1.0, and 1.3 MPa. Most general industrial applications use 0.7 or 0.8 MPa. Note: GAT-315W and GAT-355W are not available at 0.7 MPa.
Determine the maximum volumetric flow rate needed. The GAT ranges from 2.60 m³/min (22 kW) up to 73.0 m³/min (355 kW). Add 15–20% margin for future expansion and peak demand fluctuations.
Select GAT (fixed-speed) for constant demand, or GAT-VFC (variable speed) for fluctuating loads. VFC models adjust output to 10% of rated capacity, saving an additional 15–20% energy on partial loads.
17 models from 22 to 355 kW. All models feature Two-Stage Compression with Direct Drive. Flow values shown are maximum (full-load) capacity. VSD models available with turndown to 10%.
| Model | Motor | Air Delivery (m³/min) @ Pressure | Noise dB(A) |
L×W×H (mm) | Weight (kg) |
Outlet | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| kW | HP | 0.6 MPa | 0.7 MPa | 0.8 MPa | 1.0 MPa | 1.3 MPa | |||||
| GAT-22A | 22 | 30 | 4.20 | 3.95 | 3.50 | 3.20 | 2.60 | 64±2 | 1535×950×1500 | 810 | DN25 |
| GAT-30A | 30 | 40 | 6.20 | 6.03 | 5.40 | 4.50 | 3.20 | 65±2 | 1750×1100×1700 | 1085 | DN40 |
| GAT-37A | 37 | 50 | 7.90 | 7.50 | 7.00 | 5.60 | 5.40 | 65±2 | 1750×1100×1700 | 1150 | DN40 |
| GAT-45A | 45 | 60 | 9.20 | 9.10 | 8.40 | 7.40 | 6.60 | 68±2 | 1750×1100×1700 | 1250 | DN40 |
| GAT-55A | 55 | 75 | 12.20 | 11.90 | 11.80 | 9.30 | 8.00 | 72±2 | 2350×1450×1950 | 2300 | DN50 |
| GAT-75A | 75 | 100 | 16.00 | 15.02 | 14.75 | 13.00 | 10.90 | 72±2 | 2350×1450×1950 | 2650 | DN50 |
| Model | Motor | Air Delivery (m³/min) @ Pressure | Noise dB(A) |
L×W×H (mm) | Weight (kg) |
Outlet | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| kW | HP | 0.6 MPa | 0.7 MPa | 0.8 MPa | 1.0 MPa | 1.3 MPa | |||||
| GAT-90A | 90 | 120 | 19.00 | 18.00 | 17.50 | 15.80 | 13.00 | 75±2 | 3000×1750×1920 | 3600 | DN65 |
| GAT-110A | 110 | 150 | 24.00 | 23.00 | 20.40 | 18.00 | 16.00 | 76±2 | 3000×1750×1920 | 3980 | DN65 |
| GAT-132A | 132 | 180 | 26.50 | 26.00 | 23.00 | 22.00 | 18.00 | 77±2 | 3000×1750×1920 | 4200 | DN65 |
| GAT-160W | 160 | 215 | 32.50 | 32.07 | 28.00 | 26.00 | 22.50 | 77±2 | 3100×1800×2200 | 4700 | DN80 |
| GAT-185A/W | 185 | 250 | 41.00 | 37.92 | 32.50 | 31.00 | 26.00 | 77±2 | 3100×1800×2200 | 5000 | DN80 |
| Model | Motor | Air Delivery (m³/min) @ Pressure | Noise dB(A) |
L×W×H (mm) | Weight (kg) |
Outlet | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| kW | HP | 0.6 MPa | 0.7 MPa | 0.8 MPa | 1.0 MPa | 1.3 MPa | |||||
| GAT-200A/W | 200 | 270 | 43.80 | 40.50 | 37.00 | 32.50 | 30.50 | 80±2 | 3850×2250×2060 | 5500 | DN100 |
| GAT-220A/W | 220 | 300 | 49.50 | 49.00 | 41.00 | 36.50 | 32.00 | 80±2 | 3850×2250×2060 | 6200 | DN100 |
| GAT-250A/W | 250 | 340 | 56.00 | 54.00 | 49.00 | 40.50 | 36.00 | 80±2 | 3850×2250×2060 | 6300 | DN100 |
| GAT-280W | 280 | 380 | 61.00 | 60.00 | 54.00 | 46.00 | 41.00 | 82±2 | 4650×2300×2400 | 7300 | DN125 |
| GAT-315W | 315 | 425 | 70.00 | — | 60.00 | 50.00 | 45.00 | 84±2 | 4650×2300×2400 | 9000 | DN125 |
| GAT-355W | 355 | 480 | 73.00 | — | 70.00 | 60.00 | 49.00 | 86±2 | 4650×2300×2400 | 10000 | DN125 |
* All GAT models are Direct Driven with flexible coupling. "A" = Air-Cooled, "W" = Water-Cooled, "A/W" = Both options available. "—" indicates pressure not available for that model. VSD (Variable Frequency Drive) option available on all models — add "VFC" or "CFV" suffix. All data verified against master spec sheet. Contact our engineers for exact configuration and pricing.
Tell us your air demand, pressure, and operating hours — we will prepare a detailed energy savings comparison report.
Get Two-Stage Proposal| Model | Max Exhaust Pressure | Air Displacement | Motor Power | Dimension (mm) | Weight (kg) |
Noise dB(A) |
Outlet | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MPa | bar | psi | m³/min | cfm | kW | HP | L | W | H | ||||
| GAT-22A | 0.6 | 6 | 87 | 4.2 | 148 | 22 | 30 | 1450 | 950 | 1250 | 810 | 64±2 | 25mm |
| 0.7 | 7 | 102 | 3.95 | 139 | |||||||||
| 0.8 | 8 | 116 | 3.5 | 124 | |||||||||
| 1.0 | 10 | 145 | 3.2 | 113 | |||||||||
| 1.3 | 13 | 189 | 2.6 | 92 | |||||||||
| GAT-30A | 0.6 | 6 | 87 | 6.2 | 219 | 30 | 40 | 1700 | 1100 | 1450 | 1085 | 65±2 | 40mm |
| 0.7 | 7 | 102 | 6.03 | 213 | |||||||||
| 0.8 | 8 | 116 | 5.4 | 191 | |||||||||
| 1.0 | 10 | 145 | - | - | |||||||||
| 1.3 | 13 | 189 | - | - | |||||||||
| GAT-37A | 0.6 | 6 | 87 | 7.1 | 251 | 37 | 50 | 1700 | 1100 | 1450 | 1150 | 65±2 | 40mm |
| 0.7 | 7 | 102 | 6.9 | 244 | |||||||||
| 0.8 | 8 | 116 | 6.7 | 237 | |||||||||
| 1.0 | 10 | 145 | 5.6 | 198 | |||||||||
| 1.3 | 13 | 189 | 5.4 | 191 | |||||||||
| GAT-45A | 0.6 | 6 | 87 | 8.3 | 293 | 45 | 60 | 1700 | 1100 | 1450 | 1250 | 68±2 | 40mm |
| 0.7 | 7 | 102 | 8.01 | 283 | |||||||||
| 0.8 | 8 | 116 | 7.8 | 275 | |||||||||
| 1.0 | 10 | 145 | 6.5 | 230 | |||||||||
| 1.3 | 13 | 189 | 6.2 | 219 | |||||||||
| GAT-55A | 0.6 | 6 | 87 | 11.4 | 403 | 55 | 75 | 2350 | 1450 | 1950 | 2300 | 72±2 | 50mm |
| 0.7 | 7 | 102 | 10.8 | 381 | |||||||||
| 0.8 | 8 | 116 | 10.0 | 353 | |||||||||
| 1.0 | 10 | 145 | 9.3 | 328 | |||||||||
| 1.3 | 13 | 189 | - | - | |||||||||
| GAT-75A | 0.6 | 6 | 87 | 16.0 | 565 | 75 | 100 | 2350 | 1450 | 1950 | 2650 | 72±2 | 50mm |
| 0.7 | 7 | 102 | 14.2 | 501 | |||||||||
| 0.8 | 8 | 116 | 14.0 | 494 | |||||||||
| 1.0 | 10 | 145 | 13.0 | 459 | |||||||||
| 1.3 | 13 | 189 | 9.5 | 335 | |||||||||
| GAT-90A | 0.6 | 6 | 87 | 19.0 | 671 | 90 | 120 | 3000 | 1750 | 1920 | 3600 | 76±2 | 65mm |
| 0.7 | 7 | 102 | 18.0 | 636 | |||||||||
| 0.8 | 8 | 116 | 16.5 | 583 | |||||||||
| 1.0 | 10 | 145 | 16.0 | 565 | |||||||||
| 1.3 | 13 | 189 | 13.0 | 459 | |||||||||
| GAT-110A | 0.6 | 6 | 87 | 24.0 | 847 | 110 | 150 | 3000 | 1750 | 1920 | 3980 | 77±2 | 65mm |
| 0.7 | 7 | 102 | 22.0 | 777 | |||||||||
| 0.8 | 8 | 116 | 18.5 | 653 | |||||||||
| 1.0 | 10 | 145 | 18.0 | 636 | |||||||||
| 1.3 | 13 | 189 | 16.0 | 566 | |||||||||
| GAT-132A | 0.6 | 6 | 87 | 26.5 | 936 | 132 | 175 | 3000 | 1750 | 1920 | 3980 | 77±2 | 65mm |
| 0.7 | 7 | 102 | 26.0 | 918 | |||||||||
| 0.8 | 8 | 116 | 23.0 | 812 | |||||||||
| 1.0 | 10 | 145 | 22.0 | 777 | |||||||||
| 1.3 | 13 | 189 | 18.0 | 636 | |||||||||
| GAT-160A | 0.6 | 6 | 87 | 32.5 | 1148 | 160 | 215 | 3000 | 1800 | 2000 | 4050 | 76±2 | 80mm |
| 0.7 | 7 | 102 | 32.0 | 1130 | |||||||||
| 0.8 | 8 | 116 | 28.0 | 989 | |||||||||
| 1.0 | 10 | 145 | 26.0 | 918 | |||||||||
| 1.3 | 13 | 189 | 22.5 | 795 | |||||||||
| GAT-185A | 0.6 | 6 | 87 | 41.0 | 1448 | 185 | 248 | 3000 | 1800 | 2000 | 4260 | 77±2 | 80mm |
| 0.7 | 7 | 102 | 37.9 | 1338 | |||||||||
| 0.8 | 8 | 116 | 32.5 | 1147 | |||||||||
| 1.0 | 10 | 145 | 31.0 | 1094 | |||||||||
| 1.3 | 13 | 189 | 26.0 | ||||||||||
