



HSZ154/100 Air-Cooled Direct Drive Spindle Motors
We engineer HSZ154 & HSZ100 direct drive spindle motors, delivering 0.37kW to 5.5kW power for industrial vacuum pumps and automation.
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Comprehensive Power Spectrum: The combined series offers flexible power ratings from 0.37 kW up to 5.5 kW, supporting high-speed operations from 500 RPM to 4500 RPM.
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Exceptional Overload Capacity: Engineered with a robust overload factor of ≥ 2.5, guaranteeing stable mechanical performance even under sudden heavy load spikes.
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Advanced Stator Protection: Features industrial-grade stator potting technology, providing superior vibration resistance, thermal dissipation, and protection against moisture.
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Flexible Cooling Configurations: Designed primarily for natural cooling, with customized forced air cooling options available to meet continuous heavy-duty cycle requirements.
HSZ154 & HSZ100 Spindle Motor Description
Combining the ultra-compact versatility of the HSZ100 with the robust torque delivery of the HSZ154, this series of air-cooled direct drive spindle motors provides a complete power solution for modern industrial automation. By integrating advanced permanent magnet technology, these motors eliminate mechanical transmission losses, delivering precise and highly efficient coaxial rotation.
Designed to operate seamlessly in demanding environments, both the HSZ154 and HSZ100 boast a high overload capacity (≥ 2.5) and utilize specialized stator potting encapsulation. This ensures exceptional durability, rapid heat dissipation, and long-term reliability—making them the definitive choice for driving hydraulic power units, continuous-duty vacuum pumps, and sophisticated automated equipment.
HSZ154 & HSZ100 Technical Data Sheet
| Series | Type Designation | Rated Voltage (VAC) |
Rated Power (kW) |
Rated Speed (rpm) |
Rated Torque (Nm) |
Overload Factor |
Stator Protection |
Cooling Method |
| HSZ154 | HSZ-PM38H550-154N30-S05 | 380 | 5.5 | 3000 | 17.5 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ154 | HSZ-PM38H550-154N25-S05 | 380 | 5.5 | 2500 | 21 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ154 | HSZ-PM38H550-154N15-S05 | 380 | 5.5 | 1500 | 35 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ154 | HSZ-PM38H220-154N07-S05 | 380 | 2.2 | 750 | 28 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ154 | HSZ-PM38H220-154N09-S05 | 380 | 2.2 | 960 | 22 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ154 | HSZ-PM38H150-154N05-S05 | 380 | 1.5 | 500 | 28.65 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ154 | HSZ-PM38H150-154N07-S05 | 380 | 1.5 | 750 | 19 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ100 | HSZ-PM38H150-100N45-S05 | 380 | 1.5 | 4500 | 3 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ100 | HSZ-PM38H110-100N20-S05 | 380 | 1.1 | 2000 | 5 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ100 | HSZ-PM38H75-100N45-S05 | 380 | 0.75 | 4500 | 1 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ100 | HSZ-PM38H75-100N30-S05 | 380 | 0.75 | 3000 | 2 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ100 | HSZ-PM38H75-100N15-S05 | 380 | 0.75 | 1500 | 4.8 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ100 | HSZ-PM38H55-100N15-S05 | 380 | 0.55 | 1500 | 3.5 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
| HSZ100 | HSZ-PM38H37-100N07-S05 | 380 | 0.37 | 750 | 4.7 | ≥ 2.5 | Stator potting | Natural cooling / customized air cooling |
Engineered for endurance and precision, the HSZ154 and HSZ100 series are the premier direct-drive solutions for continuous-duty industrial systems. They are widely integrated into industrial vacuum pumps and hydraulic power units, where stable torque and high overload resistance are critical. Additionally, their compact form factor and high-speed capabilities (up to 4500 RPM) make them ideal for seamless integration into various confined automated equipment setups.
Ready to equip your hydraulic or vacuum systems with highly reliable direct-drive technology? Whether you need the ultra-fast 0.37kW HSZ100 or the high-torque 5.5kW HSZ154, Volcano Electric manufactures custom configurations to suit your exact automation needs. Send us your project specifications today, and our engineering team will provide a technical datasheet and competitive factory-direct pricing within 24 hours.
HSZ154/100 Direct Drive Applications
Engineered for endurance and precision, the HSZ154 and HSZ100 series are the premier direct-drive solutions for continuous-duty industrial systems. They are widely integrated into industrial vacuum pumps and hydraulic power units, where stable torque and high overload resistance are critical. Additionally, their compact form factor and high-speed capabilities (up to 4500 RPM) make them ideal for seamless integration into various confined automated equipment setups.


