01
IE4 Permanent-Magnet Motor
Totally enclosed, oil-cooled PM motor with insulation class F and IE4 super-premium efficiency — higher efficiency across the whole speed range than standard induction motors.
KAISHAN★ VSD · IE4 PM Motor
Kaishan VSD Inverter Screw Air Compressor
PMVs Series · 15 – 75 kW
Kaishan's second-generation PMVs rotary screw compressor pairs a variable-speed inverter with an IE4 super-premium-efficiency permanent-magnet motor, holding discharge pressure rock-steady while matching motor speed to your real air demand.
Power Range
15 – 75 kW (20 – 100 HP)
Working Pressure
0.6 – 1.0 MPa
Air Delivery
2.26 – 15.60 m³/min
Drive
VSD · Direct-Driven PM Motor
Sole / authorized distributor in Malaysia · Genuine parts · Full manufacturer warranty
IE4 PM Motor VSD Inverter Direct Drive 3-Stage Oil Separation 4,000-hr Synthetic Lubricant High-Ambient Coolers
The Big Idea
Global-scale engineering. Variable-speed savings.
Kaishan is the world's third-largest manufacturer of compressed air, mining and drilling equipment, producing over 70,000 rotary screw compressors a year across 60+ countries — with 85% vertically integrated manufacturing for proven reliability at a significantly lower cost. The PMVs series applies that scale to VSD technology: a permanent-magnet motor on a common shaft with the air-end, driven by a premium synchronous frequency converter.
85% vertically integrated manufacturing gives Kaishan full control of the material supply chain — high-quality components at a lower cost, with rapid response to market demand.
70,000+
Rotary screw compressors produced annually by Kaishan — the world's 3rd largest compressed air manufacturer
Why Kaishan
Four Reasons Customers Choose It
02
VSD Energy Savings
The inverter adjusts motor speed to compressor discharge pressure, holding output pressure stable while cutting electricity use on variable air demand — and auto stop/start during low demand.
03
Direct-Driven Common Shaft
Motor and air-end share one direct-driven, flange-connected shaft, fully enclosed against dirt and dust — no belt losses, no belt maintenance, reduced vibration.
04
Built for High Ambient
Oversized aluminium air-cooled oil cooler and aftercooler handle 0–45 °C tropical conditions, with flame-retardant acoustic foam keeping noise down.
Premium Components
Engineered With The World's Best Parts
Kaishan Synchronous Frequency Converter
Premium inverter control matched to the PM motor for stable speed regulation and reliable pressure control.
3-Stage Oil Separation
Three separation stages ensure very low oil carryover into the compressed air stream.
Stainless Steel Flex Lines
Stainless flexible hoses on the air circuit for increased reliability and reduced vibration.
Oversized Coolers
Air-cooled aluminium oil cooler and aftercooler sized for high-ambient factory conditions.
Full-Feature Intelligent Controller
Touch screen or push-button navigation with load/unload and speed regulation, safety monitoring, service alerts, energy-consumption logging and built-in networking.
kerry-8# Premium Lubricant
Factory-filled PAO/POE synthetic lubricant designed for 4,000-hour life.
Technical Specifications
Full model line up
6 air-cooled models from 15 kW to 75 kW, all variable speed at 0.6 – 1.0 MPa. 380/400/415 V · 3Ph · 50 Hz.
| Model | Motor Power (kW) | Pressure (MPa) | Air Delivery (m³/min) | Outlet | L × W × H (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| PMV-15s | 15 | 0.6 – 1.0 | 2.26 – 2.88 | G1 | 1040 × 720 × 1160 | 300 |
| PMV-22s | 22 | 0.6 – 1.0 | 3.59 – 4.65 | G1 | 1150 × 780 × 1280 | 380 |
| PMV-37s | 37 | 0.6 – 1.0 | 5.90 – 7.65 | G1 1/2 | 1300 × 900 × 1350 | 530 |
| PMV-45s | 45 | 0.6 – 1.0 | 7.14 – 9.27 | G1 1/2 | 1530 × 1010 × 1540 | 740 |
| PMV-55s | 55 | 0.6 – 1.0 | 9.99 – 11.95 | G1 1/2 | 1530 × 1010 × 1540 | 770 |
| PMV-75s | 75 | 0.6 – 1.0 | 12.44 – 15.60 | G2 | 1620 × 1110 × 1690 | 1120 |
Pressure in MPa · Air delivery shown per pressure level · Specifications may be updated by the manufacturer without prior notice.
Trusted Across Malaysian Industry
From semiconductor cleanrooms to F&B production lines, trusted equipment that keeps Penang's factories running.
General Manufacturing
Metal Fabrication
Automotive
Plastic Injection
Woodworking
Food & Beverage
Want VSD savings from a global manufacturer?
Free on-site air-demand survey in Penang & Northern Malaysia. Honest sizing and ROI comparison vs your fixed-speed unit.
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