Manufacturer brochure · revision 2026-03-12
CLASS 0 DRY OIL-FREE SCREW COMPRESSOR
ZSClass 0 Dry Oil-Free Screw Air Compressor
Class 0 clean air for critical continuous processes
The ZS two-stage dry-screw platform keeps lubricating oil outside the compression chamber for critical clean-air processes and continuous industrial duty.
14models
Power range55–450 kW / 75–600 HP
Capacity / flow7.5–73.4 m³/min
Pressure / vacuum0.8–1.0 MPa
ConfigurationClass 0 dry two-stage screw
Five engineering advantages
Class 0 oil-free air path
Class 0 oil-free air path is integrated into the published ZS platform to improve stable, efficient operation under the intended duty.
Working principle and core architecture
Two dry screw stages compress air without lubricating oil in the compression chambers. Interstage cooling controls temperature, while the sealing system separates the air path from the bearing and lubrication circuits.
01
Class 0 oil-free air path
Class 0 oil-free air path is integrated into the published ZS platform to improve stable, efficient operation under the intended duty.
02
Dry screw air end
Dry screw air end is identified in the ZS brochure as a core platform component. Final configuration varies by model and project.
03
Two-stage dry screw air end
Two-stage dry screw air end is integrated into the published ZS platform to improve stable, efficient operation under the intended duty.
04
Coated rotors
Coated rotors is identified in the ZS 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
Integrated cooling system
Integrated cooling system is identified in the ZS brochure as a core platform component. Final configuration varies by model and project.
ZS 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
- 55–450 kW / 75–600 HP
- Capacity / flow
- 7.5–73.4 m³/min
- Pressure / vacuum
- 0.8–1.0 MPa
- Compression / pump type
- Dry two-stage oil-free screw
Drive and compression
- Motor and drive
- IE5 liquid-cooled permanent-magnet motor
- Efficiency class
- ISO 8573-1 Class 0 platform
- Cooling method
- Air-cooled or water-cooled by model
- Transmission
- Direct drive
Installation and control
- Control and communication
- Intelligent controller; IoT and linkage
- Published noise
- Project / model dependent
- Electrical supply
- 220 / 380 / 415 V; 50 / 60 Hz
- Operating duty
- Clean-air continuous industrial duty
Published model range
The brochure publishes 14 models across 55–450 kW / 75–600 HP. Confirm the final selection against actual flow, pressure or vacuum, duty cycle and site utilities.
0175–150 HP
Compact and point-of-use duty
02175–350 HP
General continuous industrial duty
03375–600 HP
Centralized and high-capacity systems
View the complete 14-model table14 models
Swipe horizontally to view all columns.
| Model | Pressure / flow | Motor kW / HP | Cooling | Weight kg | Dimensions L×W×H mm |
|---|---|---|---|---|---|
| ZS-75 | 0.8/8.21.0/7.5 | 55 / 75 | Air | 2200 | 2125×1725×2200 |
| ZS-100 | 0.8/11.51.0/10.8 | 75 / 100 | Air | 2300 | 2125×1725×2200 |
| ZS-125W | 0.8/14.01.0/12.9 | 90 / 125 | Water | 2500 | 2825×2175×1800 |
| ZS-150W | 0.8/18.11.0/16.8 | 110 / 150 | Water | 2700 | 2825×2175×1800 |
| ZS-175W | 0.8/20.41.0/18.8 | 132 / 175 | Water | 2700 | 3125×2125×1800 |
| ZS-200W | 0.8/26.21.0/24.0 | 160 / 200 | Water | 2850 | 3125×2125×1800 |
| ZS-250W | 0.8/29.11.0/27.5 | 185 / 250 | Water | 4050 | 3125×2225×1800 |
| ZS-300W | 0.8/35.61.0/32.4 | 220 / 300 | Water | 4200 | 3125×2225×1800 |
| ZS-350W | 0.8/40.51.0/36.8 | 250 / 350 | Water | 4700 | 3125×2225×2200 |
| ZS-375W | 0.8/42.61.0/37.8 | 280 / 375 | Water | 4950 | 3125×2225×2200 |
| ZS-420W | 0.8/50.51.0/46.8 | 315 / 420 | Water | 6250 | 3625×2425×2300 |
| ZS-475W | 0.8/55.51.0/50.5 | 355 / 475 | Water | 6500 | 3625×2425×2300 |
| ZS-530W | 0.8/60.31.0/55.8 | 400 / 530 | Water | 8150 | 4365×2700×2400 |
| ZS-600W | 0.8/73.41.0/63.9 | 450 / 600 | Water | 8550 | 4365×2700×2400 |
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- Healthcare
- Pharmaceuticals
- Food and beverage
- Semiconductors
- Electronics
- Precision coating and R&D
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
ApplicationClean-air continuous production
Scalable dry oil-free plant air
Recorded ZS installations span three capacity levels, illustrating how the same dry oil-free platform can be selected around different plant loads.
Recorded configuration
Discuss a similar project
- 1 × ZS75
- 1 × ZS-100/8
- 1 × ZS-250/8
Product engineering and core components
Frequently asked questions
ZS Class 0 Dry Oil-Free Screw Air Compressor is The ZS two-stage dry-screw platform keeps lubricating oil outside the compression chamber for critical clean-air processes and continuous industrial duty.
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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