SH-AHT PM VSD Two-Stage Screw Compressor
Splitting the pressure ratio across two airends with intercooling, combined with PM inverter control, delivers lower specific power at continuous full load across 30–355 kW.
SH-AHT PM VSD Two-Stage Screw Compressor
Splitting the pressure ratio across two airends with intercooling, combined with PM inverter control, delivers lower specific power at continuous full load across 30–355 kW.
Overview
Two-stage compression divides the total pressure ratio: lower ratio per stage reduces internal leakage and bearing load, while intercooling lowers second-stage inlet temperature so the process approaches isothermal compression. Specific power therefore beats a single-stage machine of the same rating. Adding PM VSD captures both the compression gain and part-load speed control — a common choice for large central stations.
Key features
Ratio split plus intercooling reduces leakage and bearing load for lower specific power.
Savings are greatest at sustained high load factors.
Retains speed-control benefits for fluctuating periods.
Water cooling available on high-power frames for steadier heat rejection.
Model data
Models in this family
| Model | kW | MPa | FAD (m³/min) | Noise dB(A) | Cooling | Outlet | L×W×H (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| SH-30AHT | 30 | 0.8 | 2.1-6.1 | 62±2 | Air (centrifugal) | G1 1/2 | 1580×1040×1560 | 800 |
| SH-30AHT | 30 | 1 | 1.8-5.2 | 62±2 | Air (centrifugal) | G1 1/2 | 1580×1040×1560 | 800 |
| SH-30AHT | 30 | 1.25 | 1.3-4.0 | 62±2 | Air (centrifugal) | G1 1/2 | 1580×1040×1560 | 800 |
| SH-37AHT | 37 | 0.8 | 2.4-7.2 | 62±2 | Air (centrifugal) | G1 1/2 | 1580×1040×1560 | 820 |
| SH-37AHT | 37 | 1 | 2.0-6.0 | 62±2 | Air (centrifugal) | G1 1/2 | 1580×1040×1560 | 820 |
| SH-37AHT | 37 | 1.25 | 1.7-5.0 | 62±2 | Air (centrifugal) | G1 1/2 | 1580×1040×1560 | 820 |
| SH-45AHT | 45 | 0.8 | 3.2-9.3 | 63±2 | Air (centrifugal) | G2 | 2350×1380×1800 | 1750 |
| SH-45AHT | 45 | 1 | 2.8-8.2 | 63±2 | Air (centrifugal) | G2 | 2350×1380×1800 | 1750 |
| SH-45AHT | 45 | 1.25 | 2.4-6.9 | 63±2 | Air (centrifugal) | G2 | 2350×1380×1800 | 1750 |
| SH-55AHT | 55 | 0.8 | 4.2-12.2 | 65±2 | Air (centrifugal) | G2 | 2350×1380×1800 | 1800 |
| SH-55AHT | 55 | 1 | 3.2-9.3 | 65±2 | Air (centrifugal) | G2 | 2350×1380×1800 | 1800 |
| SH-55AHT | 55 | 1.25 | 2.8-8.3 | 65±2 | Air (centrifugal) | G2 | 2350×1380×1800 | 1800 |
| SH-75AHT | 75 | 0.8 | 5.5-16.2 | 65±2 | Air (centrifugal) | G2 1/2 | 2350×1420×1800 | 1850 |
| SH-75AHT | 75 | 1 | 4.4-13.0 | 65±2 | Air (centrifugal) | G2 1/2 | 2350×1420×1800 | 1850 |
| SH-75AHT | 75 | 1.25 | 4.0-11.8 | 65±2 | Air (centrifugal) | G2 1/2 | 2350×1420×1800 | 1850 |
| SH-90AHT | 90 | 0.8 | 6.5-19.0 | 68±2 | Air (centrifugal) | G2 1/2 | 2600×1570×1900 | 2400 |
| SH-90AHT | 90 | 1 | 5.4-16.0 | 68±2 | Air (centrifugal) | G2 1/2 | 2600×1570×1900 | 2400 |
| SH-90AHT | 90 | 1.25 | 4.2-15.0 | 68±2 | Air (centrifugal) | G2 1/2 | 2600×1570×1900 | 2400 |
| SH-110AHT | 110 | 0.8 | 7.9-23.2 | 68±2 | Air (centrifugal) | G2 1/2 | 2600×1620×1900 | 2500 |
| SH-110AHT | 110 | 1 | 6.5-19.2 | 68±2 | Air (centrifugal) | G2 1/2 | 2600×1620×1900 | 2500 |
| SH-110AHT | 110 | 1.25 | 6.2-18.2 | 68±2 | Air (centrifugal) | G2 1/2 | 2600×1620×1900 | 2500 |
| SH-132AHT | 132 | 0.8 | 9.2-27.2 | 70±2 | Air (centrifugal) | DN80 | 3180×1695×2150 | 3800 |
| SH-132AHT | 132 | 1 | 7.9-23.2 | 70±2 | Air (centrifugal) | DN80 | 3180×1695×2150 | 3800 |
| SH-132AHT | 132 | 1.25 | 6.8-20.1 | 70±2 | Air (centrifugal) | DN80 | 3180×1695×2150 | 3800 |
| SH-160AHT | 160 | 0.8 | 11.3-33.3 | 70±2 | Air (centrifugal) | DN80 | 3180×1695×2150 | 4000 |
| SH-160AHT | 160 | 1 | 9.8-28.8 | 70±2 | Air (centrifugal) | DN80 | 3180×1695×2150 | 4000 |
| SH-160AHT | 160 | 1.25 | 7.4-27.6 | 70±2 | Air (centrifugal) | DN80 | 3180×1695×2150 | 4000 |
| SH-185AHT | 185 | 0.8 | 13.5-39.7 | 72±2 | Air (centrifugal) | DN125 | 3500×1750×2350 | 5500 |
| SH-185AHT | 185 | 1 | 11.3-33.3 | 72±2 | Air (centrifugal) | DN125 | 3500×1750×2350 | 5500 |
| SH-185AHT | 185 | 1.25 | 10.4-30.7 | 72±2 | Air (centrifugal) | DN125 | 3500×1750×2350 | 5500 |
| SH-200AHT | 200 | 0.8 | 14.6-43.1 | 72±2 | Air (centrifugal) | DN125 | 4000×2250×2400 | 6000 |
| SH-200AHT | 200 | 1 | 13.4-39.5 | 72±2 | Air (centrifugal) | DN125 | 4000×2250×2400 | 6000 |
| SH-200AHT | 200 | 1.25 | 10.7-31.6 | 72±2 | Air (centrifugal) | DN125 | 4000×2250×2400 | 6000 |
| SH-220AHT | 220 | 0.8 | 15.5-45.5 | 72±2 | Air (centrifugal) | DN125 | 4000×2250×2400 | 6500 |
| SH-220AHT | 220 | 1 | 14.3-42.0 | 72±2 | Air (centrifugal) | DN125 | 4000×2250×2400 | 6500 |
| SH-220AHT | 220 | 1.25 | 12.1-35.7 | 72±2 | Air (centrifugal) | DN125 | 4000×2250×2400 | 6500 |
| SH-250AHT | 250 | 0.8 | 18.4-54.0 | 75±2 | Air (centrifugal) | DN125 | 4000×2250×2500 | 6600 |
| SH-250AHT | 250 | 1 | 16.1-47.4 | 75±2 | Air (centrifugal) | DN125 | 4000×2250×2500 | 6600 |
| SH-250AHT | 250 | 1.25 | 14.2-41.8 | 75±2 | Air (centrifugal) | DN125 | 4000×2250×2500 | 6600 |
| SH-280AHT | 280 | 0.8 | 19.6-57.8 | 75±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 8500 |
| SH-280AHT | 280 | 1 | 17.3-50.9 | 75±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 8500 |
| SH-280AHT | 280 | 1.25 | 14.3-42.2 | 75±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 8500 |
| SH-315AHT | 315 | 0.8 | 21.7-63.9 | 78±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 9000 |
| SH-315AHT | 315 | 1 | 19.6-57.6 | 78±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 9000 |
| SH-315AHT | 315 | 1.25 | 16.0-47.0 | 78±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 9000 |
| SH-355AHT | 355 | 0.8 | 25.9-76.4 | 78±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 9500 |
| SH-355AHT | 355 | 1 | 20.8-61.2 | 78±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 9500 |
| SH-355AHT | 355 | 1.25 | 18.1-53.1 | 78±2 | Air (centrifugal) | DN150 | 4400×2540×2800 | 9500 |
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