EP-CMW9-1.0 Oil-Free Scroll Air Compressor
The EP-CMW9-1.0 pairs two 4.5 kW scroll heads to produce 820 L/min of certified oil-free air at 1.0 MPa — a high-capacity dual-head solution with built-in redundancy and demand-adaptive load management for large industrial operations requiring substantial clean air volume at higher working pressure.
EP-CMW9-1.0: Dual Air-End (2 x 4.5 kW) 1.0 MPa Oil-Free Scroll Compressor -- 820 L/min
The EP-CMW9-1.0 is a dual air-end (2 x 4.5 kw) configuration in Ever Power's 1.0 MPa range, delivering 820 L/min of certified oil-free air at up to 1.0 MPa from 9 kW total drive power. Noise level: 58 +/- 3 dB(A). Weight: 185 kg. Dimensions: 880 x 720 x 1120 mm. Outlet: 1 inch stainless steel. All air-ends carry a 2-year warranty. The touch-screen PLC manages demand-based head sequencing, automatic lead rotation, and per-head maintenance reminders. View all options in the full EP-CMW range.
Two-step capacity management at 1.0 MPa: one 4.5 kW head produces 410 L/min for off-peak and single-shift demands; both heads together produce the full 820 L/min for peak multi-line or multi-machine production. The PLC manages transitions automatically in response to system pressure, and rotates lead/standby roles over time to equalise wear across both scroll mechanisms.
Engineering Foundation Behind the 1.0 MPa Multi-Head Range
Ever Power's multi-head scroll compressors scale proven individual scroll head engineering -- the same high-stiffness square air-end design, direct-drive permanent magnet motor, and 1 micron inlet filtration -- across multiple mechanisms in a single managed cabinet. The company manufactured the world-first 1.2 MPa oil-free scroll compressor and contributed to national standards JB/T 11882-2014 and JB/T 12565-2015. All air-ends in this model carry unconditional 2-year warranties.
Key Features
820 L/min at 1.0 MPa -- High Volume at Higher Working Pressure
Two 4.5 kW scroll heads produce 820 L/min of certified oil-free air at 1.0 MPa in a single cabinet -- consolidating what would otherwise require multiple separate compressors into one intelligent, self-managing unit.
58 dB(A) at Industrial-Scale 1.0 MPa Output
Achieving 58 dB(A) at 820 L/min and 1.0 MPa reflects scroll technology's smooth compression cycle combined with direct-drive architecture and advanced soundproof enclosure -- significantly quieter than rotary screw or piston compressors at equivalent output.
Two-Step Demand Management -- 410 or 820 L/min at 1.0 MPa
PLC-managed demand sequencing runs one or both heads based on real-time system pressure. Off-peak periods run on one head; peak production activates both. Energy scales with actual demand rather than running maximum output continuously.
Dual-Head Redundancy at High Industrial Volume
With two independently operable 4.5 kW heads, one head continues supplying 410 L/min at 1.0 MPa during the other's maintenance window -- maintaining supply for reduced-demand operations without a production stop.
2 x 4.5 kW Permanent Magnet Motors for 1.0 MPa Torque
Both 4.5 kW motors are specified for the additional drive torque required at 1.0 MPa compression ratio, maintaining volumetric efficiency and the rated 820 L/min output at full working pressure.
1 Inch Stainless Steel Outlet for High-Volume 1.0 MPa Distribution
The 1-inch stainless manifold outlet handles full 820 L/min flow at 1.0 MPa without velocity-induced pressure loss, connecting to standard 1-inch BSP or NPT industrial compressed air headers.
Scroll Compression at 1.0 MPa
Each scroll head in the EP-CMW9-1.0 compresses air through the standard CMW orbital scroll cycle optimised for 1.0 MPa: air enters at the scroll periphery, is sealed into crescent-shaped pockets, and travels through the extended compression path needed for 1.0 MPa output before discharging at the central port. All heads discharge into a common stainless manifold at the 1 inch outlet. The PLC continuously monitors system pressure and sequences head operation to maintain pressure within the operating band, rotating lead roles to equalise running hours across all heads.
Technical Specifications -- EP-CMW9-1.0
| Parameter | Specification |
|---|---|
| Model | EP-CMW9-1.0 |
| Configuration | Dual Air-End (2 x 4.5 kW) |
| Total Motor Power | 9 kW / 12 HP |
| Working Pressure | 0.2 - 1.0 MPa |
| Free Air Delivery | 820 L/min |
| Noise Level | 58 +/- 3 dB(A) |
| Outlet Connection | 1 inch stainless steel |
| Weight | 185 kg |
| Dimensions L x W x H | 880 x 720 x 1120 mm |
| Air-End Warranty | 2 Years per head |
| Motor Type | Permanent Magnet, IP65, F-class, >94% each |
| Drive | Direct Drive per head |
| Control | Touch-screen PLC, demand sequencing, head rotation |
| Pipework | Stainless Steel |
| Inlet Filter | 1 micron per head |
| Lubrication | Oil-Free (annual grease per head) |
Industry Applications
| Sector | Application | Key Requirement Met |
|---|---|---|
| Large Food Processing | Multi-line 1.0 MPa tray sealing, high-speed packaging | BRC-compliant oil-free 820 L/min in single cabinet |
| Electronics Test | 48-position ICT rig arrays at 1.0 MPa | Single-source stable pressure eliminates inter-position variation |
| Industrial Coating | Ten or more simultaneous 1.0 MPa spray guns | High-volume oil-free eliminates fish-eye and aerosol defects |
| Pharmaceutical | Granulator clusters, multi-press networks at 1.0 MPa | Volume and pressure for multiple simultaneous process machines |
| Large Medical Campus | Hospital wing instrument air at 1.0 MPa | Dual redundancy with high volume for critical-care environments |
Customer Case Studies -- EP-CMW9-1.0
United Kingdom -- Large Food Packaging Plant
820 L/min Oil-Free at 1.0 MPa for Six-Line Tray Sealing
A UK food manufacturer's six 1.0 MPa tray-sealing lines had generated BRC non-conformances from their oil-injected supply. The EP-CMW9-1.0's 820 L/min oil-free output supplied all six lines simultaneously. First scheduled maintenance was completed with one head running overnight -- no production stop required. Zero BRC compressed air findings since.
★★★★★
"Six 1.0 MPa sealing lines, oil-free. First maintenance done without stopping. Zero BRC findings since." -- Factory Compressed Air Manager
South Korea -- Automated Electronics Test Facility
Stable 820 L/min at 1.0 MPa for 48-Position Test Rig Arrays
A Korean test facility operating 48 simultaneous 1.0 MPa ICT positions had experienced inter-position pressure variation from two separate cycling compressors. The EP-CMW9-1.0's single-cabinet dual-head output eliminated pressure differentials between positions. Test fixture repeatability improved measurably from day one.
★★★★★
"No more pressure variation between test positions. Repeatability improved measurably from day one." -- Test Systems Engineer
Netherlands -- Ten-Gun Industrial Coating Operation
Eliminating Fish-Eye Defects at 1.0 MPa Across Ten Spray Guns
A Dutch industrial coatings contractor with a 6% rework rate from oil aerosol fish-eye defects switched to the EP-CMW9-1.0 for all-ten-gun simultaneous 1.0 MPa oil-free supply. Rework rates dropped from 6% to under 0.5% within six weeks of installation.
★★★★★
"Rework from 6% to under 0.5%. The 1.0 MPa pressure and oil-free quality together fixed what filters alone could not." -- Coatings Quality Manager
Frequently Asked Questions -- EP-CMW9-1.0
How does one dual-head cabinet compare to two separate 4.5 kW compressors?
A single dual-head cabinet has one electrical connection, one control interface, one maintenance record, and automatic PLC-managed inter-head coordination. Two separate compressors require individual connections, separate controls, independent maintenance, and manual or external load coordination -- significantly more installation and operational overhead.
What is available during single-head maintenance?
The second head continues operating at 410 L/min and 1.0 MPa -- sufficient for reduced-demand operation in most facilities throughout the maintenance window.
How does the touch-screen display both heads simultaneously?
The touch panel shows individual operating mode, discharge temperature, pressure, and running hours for each head on a single status screen, with separate per-head maintenance reminders.
Is 820 L/min at 1.0 MPa sufficient for large multi-line food processing?
820 L/min at 1.0 MPa covers most six-to-eight-line food packaging plants at typical concurrent demand. Higher peak demand should consider the EP-CMW13.5-1.0 (1230 L/min) or EP-CMW18-1.0 (1640 L/min).
Can this unit integrate into a larger multi-compressor system?
Yes. The EP-CMW9-1.0 can be installed alongside other compressor units on a common air header. Inter-unit load sequencing for larger multi-compressor systems should be designed with Ever Power's application engineering team.
Submit Your Enquiry -- EP-CMW9-1.0
The EP-CMW9-1.0 is available for technical consultation and quotation. Learn more about Ever Power or view the full EP-CMW range.
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