Manufacturer brochure · revision 2026-03-12
LOW-SPEED PM VSD SCREW COMPRESSOR
ZLS-Hi+Low-Speed PM VSD Screw Compressor
Low-speed efficiency for long-running industrial air systems
A large, low-speed air end with coaxial IE5 permanent-magnet drive is designed for stable, efficient continuous plant air.
15models
Power range7.5–250 kW / 10–350 HP
Capacity / flow0.85–48.6 m³/min
Pressure / vacuum0.6–1.5 MPa
ConfigurationLow-speed IE5 PM VSD
Five engineering advantages
Large low-speed air end
Large low-speed air end is integrated into the published ZLS-Hi+ platform to improve stable, efficient operation under the intended duty.
Working principle and core architecture
The oversized screw air end operates at lower speed and is driven directly by an IE5 permanent-magnet motor. Variable-speed control adjusts displacement to maintain system pressure as demand changes.
01
Large low-speed air end
Large low-speed air end is integrated into the published ZLS-Hi+ platform to improve stable, efficient operation under the intended duty.
02
Low-speed screw air end
Low-speed screw air end is identified in the ZLS-Hi+ brochure as a core platform component. Final configuration varies by model and project.
03
IE5 PM liquid-cooled motor
IE5 PM liquid-cooled motor is integrated into the published ZLS-Hi+ platform to improve stable, efficient operation under the intended duty.
04
IE5 PM motor
IE5 PM motor is identified in the ZLS-Hi+ brochure as a core platform component. Final configuration varies by model and project.
05
Applications and operating conditions
Use the following industries as selection guidance. Air quality, load profile, ambient conditions and utilities still need project verification.
06
Coaxial coupling
Coaxial coupling is identified in the ZLS-Hi+ brochure as a core platform component. Final configuration varies by model and project.
ZLS-Hi+ technical specifications
Series-level data for initial selection. Final capacity, pressure, electrical supply, cooling and installation requirements must be confirmed for each project.
Performance
- Motor power
- 7.5–250 kW / 10–350 HP
- Capacity / flow
- 0.85–48.6 m³/min
- Pressure / vacuum
- 0.6–1.5 MPa
- Compression / pump type
- Oil-injected rotary screw
Drive and compression
- Motor and drive
- IE5 permanent-magnet VSD
- Efficiency class
- IE5
- Cooling method
- Liquid-cooled motor; air-cooled package
- Transmission
- Coaxial direct drive
Installation and control
- Control and communication
- VSD controller; RS485 / RS232 / Modbus
- Published noise
- 61–82 dB(A)
- Electrical supply
- 220 / 380 / 415 V; 50 / 60 Hz
- Operating duty
- Continuous industrial duty
Published model range
The brochure publishes 15 models across 7.5–250 kW / 10–350 HP. Confirm the final selection against actual flow, pressure or vacuum, duty cycle and site utilities.
0110–50 HP
Compact and point-of-use duty
0260–150 HP
General continuous industrial duty
03175–350 HP
Centralized and high-capacity systems
View the complete 15-model table15 models
Swipe horizontally to view all columns.
| Model | Motor kW / HP | Pressure / flow | Noise dB(A) | Inlet / outlet | Weight kg | Dimensions L×W×H mm |
|---|---|---|---|---|---|---|
| ZLS10Hi+ | 7.5 / 10 | 0.6/1.850.7/1.730.8/1.601.0/1.301.25/1.101.5/0.85 | 61±2 | G1 | 348 | 1050×800×1100 |
| ZLS15Hi+ | 11 / 15 | 0.6/2.800.7/2.600.8/2.401.0/1.901.25/1.501.5/1.30 | 61±2 | G1-1/4 | 368 | 1050×920×1150 |
| ZLS20Hi+ | 15 / 20 | 0.6/3.500.7/3.300.8/3.001.0/2.601.25/2.101.5/1.70 | 62±2 | G1-1/4 | 458 | 1050×920×1150 |
| ZLS30Hi+ | 22 / 30 | 0.6/4.700.7/4.400.8/4.201.0/3.601.25/3.101.5/2.60 | 64±2 | G1-1/2 | 575 | 1350×1000×1290 |
| ZLS40Hi+ | 30 / 40 | 0.6/6.500.7/6.000.8/5.601.0/5.101.25/4.201.5/3.70 | 64±2 | G1-1/2 | 640 | 1470×1000×1350 |
| ZLS50Hi+ | 37 / 50 | 0.6/7.800.7/7.300.8/6.801.0/5.901.25/5.101.5/4.50 | 64±2 | G1-1/2 | 828 | 1500×1050×1400 |
| ZLS60Hi+ | 45 / 60 | 0.6/9.500.7/8.800.8/8.201.0/7.201.25/6.40 | 65±2 | G2 | 1050 | 1550×1150×1460 |
| ZLS75Hi+ | 55 / 75 | 0.6/12.700.7/11.900.8/11.001.0/9.601.25/8.00 | 65±2 | G2 | 1300 | 1800×1250×1480 |
| ZLS100Hi+ | 75 / 100 | 0.6/16.800.7/15.600.8/14.491.0/12.601.25/10.90 | 66±2 | DN65 | 1350 | 1950×1400×1600 |
| ZLS125Hi+ | 90 / 125 | 0.6/20.370.7/19.000.8/17.601.0/14.101.25/12.80 | 66±2 | DN65 | 1700 | 1900×1450×1630 |
| ZLS150Hi+ | 110 / 150 | 0.6/25.600.7/23.800.8/22.101.0/20.601.25/16.80 | 67±2 | DN80 | 2400 | 2590×1750×1920 |
| ZLS175Hi+ | 132 / 175 | 0.6/28.000.7/26.800.8/24.901.0/23.201.25/19.30 | 67±2 | DN80 | 3150 | 3100×1900×2050 |
| ZLS200Hi+ | 160 / 200 | 0.6/34.800.7/32.400.8/30.101.0/26.801.25/21.80 | 70±3 | DN100 | 3300 | 3100×1900×2050 |
| ZLS275Hi+ | 200 / 275 | 0.6/41.800.7/38.900.8/36.171.0/32.401.25/27.60 | 80±3 | DN125 | 6500 | 3600×2100×2050 |
| ZLS350Hi+ | 250 / 350 | 0.6/48.600.7/45.200.8/42.301.0/38.401.25/34.30 | 82±3 | DN125 | 7900 | 3950×2300×2200 |
Source: manufacturer brochure, revision 2026-03-12. Product development is continuous; specifications may change without prior notice.
Solutions
Applications and operating conditions
Use the following industries as selection guidance. Air quality, load profile, ambient conditions and utilities still need project verification.
Solutions- General manufacturing
- Textiles
- Machining
- Chemical production
- Energy and utilities
- Central plant air
SELECTED CONFIGURATION REFERENCES
Proven product configurations
Anonymized technical references from recorded projects. They show equipment combinations, not guaranteed performance for a new site.
01
Anonymized reference
ApplicationGeneral industrial compressed air
Compact Hi+ compressed-air station
A single Hi+ compressor is paired with a matching refrigerated dryer to form a compact treated-air station.
Recorded configuration
Discuss a similar project
- 1 × ZLS-30Hi+/8
- 1 × ED-30FC
Product engineering and applications
Frequently asked questions
ZLS-Hi+ Low-Speed PM VSD Screw Compressor is A large, low-speed air end with coaxial IE5 permanent-magnet drive is designed for stable, efficient continuous plant air.
Base selection on measured normal and peak demand, required pressure or vacuum, annual operating hours, electricity supply, cooling conditions, air-quality requirements and installation environment.
No unconditional percentage is guaranteed. Published comparisons depend on baseline equipment, load profile and operating conditions. A project assessment is required.
Provide the application, required capacity, pressure or vacuum, normal and peak load, operating hours, voltage and frequency, ambient conditions, cooling utilities and delivery country.
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