EP-CMW11-0.8 Oil-Free Scroll Air Compressor
The EP-CMW11-0.8 houses three 3.7 kW scroll heads in a single intelligent cabinet to produce 1245 L/min of certified oil-free air at 0.8 MPa — a triple-head configuration with demand-adaptive load management, automatic head rotation, and 58 dB(A) operation for large industrial facilities demanding high-volume clean air without oil risk.
EP-CMW11-0.8: Triple-Head Oil-Free Scroll Compressor -- 1245 L/min at 0.8 MPa
The EP-CMW11-0.8 steps into the high-volume category of oil-free scroll compressed air by housing three 3.7 kW scroll air-ends in a single intelligent cabinet. Total output reaches 1245 L/min at working pressures from 0.2 to 0.8 MPa -- a volume that would previously have required multiple separate compressors, each with independent controls and separate maintenance schedules. The triple-head design, managed by a unified touch-screen PLC, consolidates all of that capacity into a single installation footprint of 1450 x 900 x 1150 mm, weighing 300 kg, and operating at a measured 58 +/- 3 dB(A). For large food manufacturing plants, multi-line pharmaceutical facilities, and major industrial coating operations, this unit changes the compressed air equation fundamentally. Explore how this model compares with other configurations in the complete EP-CMW range.
The triple-head architecture delivers what two-head units cannot: a graduated three-stage response to demand. The PLC sequences head start/stop across three capacity steps, matching air production precisely to current consumption -- whether that is one head at 415 L/min for off-shift maintenance air, two heads at 830 L/min for partial-line operation, or all three at 1245 L/min for peak production. Automatic lead/standby rotation distributes running hours across all three heads, and individual maintenance reminders for each head keep the service schedule manageable without specialist programming.
The Ever Power Multi-Head Engineering Approach
Ever Power's decision to build high-capacity oil-free compressed air systems around multiple optimised scroll heads rather than single large mechanisms reflects a deliberate engineering philosophy. Each 3.7 kW scroll head in the EP-CMW11-0.8 is individually precision-engineered with the same high-stiffness square air-end design used in the standalone 3.7 kW unit. This means each head benefits from the same 2-year warranty, the same precision tip seals, the same 1 micron inlet filtration, and the same direct-drive permanent magnet motor as the individual model. Rather than engineering a compromise in a larger scroll geometry, Ever Power multiplied proven precision. The company's track record includes contributing to national industry standards JB/T 11882-2014 and JB/T 12565-2015 and manufacturing the world's first 1.2 MPa oil-free scroll compressor.
Features of the Triple-Head EP-CMW11-0.8
Three-Stage Demand Response -- 415 / 830 / 1245 L/min
The PLC controller operates the three scroll heads as a three-step capacity system: one head for low demand, two for medium demand, and all three at peak. This granular control minimises energy consumption across the full demand range rather than forcing the compressor to choose between full output and idle.
Touch Screen PLC with Individual Head Status Display
A touch-panel controller -- standard on units with three or more heads -- displays the real-time operating status of each of the three scroll heads: running, standby, or fault. Discharge temperature, pressure, running hours, and maintenance reminders are shown individually per head, providing complete operational transparency.
Three-Way Automatic Lead Rotation
Cumulative running hours are tracked per head and the controller automatically cycles each through the lead, secondary, and standby roles. Over extended operation, all three heads accumulate comparable hours, preventing premature wear concentration on any single mechanism.
1245 L/min -- High Volume Without Multiple Compressor Units
Consolidating 1245 L/min into a single cabinet eliminates the installation complexity, electrical distribution requirements, and inter-machine communication overhead of running three separate compressor units. One connection, one controller, one maintenance record.
58 dB(A) -- Quiet Even at Triple-Head Capacity
At full 1245 L/min output with all three heads running, noise remains at 58 +/- 3 dB(A). Achieving this at triple capacity requires the inherent acoustic advantages of scroll compression plus a comprehensive soundproof enclosure -- both of which are standard in the EP-CMW11-0.8.
1 Inch Stainless Steel Outlet and Full Stainless Air Path
All three heads share a common stainless steel manifold discharging through a 1-inch stainless steel outlet. Individual stainless pipework sections and dual 1 micron inlet filters per head maintain the oil-free air quality standard throughout the system at all three capacity levels.
How Three-Head Scroll Coordination Works
Each of the three scroll heads in the EP-CMW11-0.8 operates the same continuous compression cycle: intake at the scroll periphery, sealing into crescent-shaped pockets, progressive compression as pockets migrate inward, and smooth central discharge. The three heads feed into a common stainless manifold. The PLC controller monitors downstream system pressure at a high update frequency and sequences head start/stop events to maintain the pressure within the set operating band. The controller's automatic rotation algorithm tracks individual head hours and redistributes the lead role periodically, ensuring no head runs significantly ahead of the others in accumulated wear. When a maintenance reminder triggers -- based on PLC-logged hours for a specific head -- only that head's service is due; the other two continue normal operation throughout the maintenance window.
Technical Specifications -- EP-CMW11-0.8
| Parameter | Specification |
|---|---|
| Model | EP-CMW11-0.8 |
| Configuration | Triple Air-End (3 x 3.7 kW scroll heads) |
| Total Motor Power | 11 kW / 15 HP |
| Working Pressure Range | 0.2 - 0.8 MPa |
| Free Air Delivery (FAD) | 1245 L/min |
| Noise Level | 58 +/- 3 dB(A) |
| Outlet Connection Size | 1 inch (stainless steel) |
| Weight | 300 kg |
| Dimensions L x W x H | 1450 x 900 x 1150 mm |
| Air-End Warranty | 2 Years per head |
| Motor Type | Permanent Magnet x3, IP65, F-class, >94% efficiency each |
| Drive Type | Direct Drive per head |
| Control System | Touch-screen PLC, 3-stage demand management, individual head rotation |
| Tank and Pipework | Stainless Steel |
| Inlet Filtration | 1 micron per head |
| Lubrication | Oil-Free (annual bearing grease per head) |
Application Sectors
| Sector | Application | Why EP-CMW11-0.8 |
|---|---|---|
| Large Food Processing Plants | High-volume packaging, multi-line filling, pneumatic conveying networks | 1245 L/min meets peak demand across multiple concurrent lines |
| Pharmaceutical Manufacturing Facilities | Clean room pneumatics, filling lines, aseptic processing | Triple redundancy supports GMP continuous operation mandates |
| Large-Scale Spray Coating Operations | Robotic painting cells, multi-gun booth networks, industrial UV lines | Sustained high volume prevents pressure variation across all booths simultaneously |
| Precision Machine Tool Clusters | Large CNC cell compressed air distribution, grinding and honing centres | Pulse-free high-volume supply across multi-machine configurations |
| Medical and Hospital Facilities | Central instrument air for large hospitals and medical campuses | High volume with built-in multi-level redundancy |
Customer Case Studies -- EP-CMW11-0.8
Colombia -- Multi-Line Food Manufacturing Plant
Eliminating Three Separate Compressors with One Intelligent Unit
A Colombian food processing company operating a biscuit, snack, and beverage packaging facility across three production lines had been running three separate 4 kW oil-injected compressors -- each with its own maintenance schedule, oil change programme, and filter replacement routine. The EP-CMW11-0.8 replaced all three units, consolidating 1245 L/min of oil-free capacity into a single cabinet. The maintenance supervisor reported that the three-head rotation system resulted in the same total maintenance frequency as servicing one of the old compressors -- but the new system handled three times the air volume. BRC food safety auditors noted the elimination of oil from the compressed air system on their next site audit.
★★★★★
"One cabinet replaced three compressors. Same maintenance effort, three times the capacity, and genuinely oil-free air. The BRC auditor noticed immediately." -- Maintenance Supervisor
Brazil -- Pharmaceutical Tablet Manufacturing
Three-Stage Demand Management Cutting Compressed Air Energy Cost
A Brazilian pharmaceutical manufacturer producing solid dosage forms had a wide demand range for compressed air: very low overnight for building services only, moderate during single-shift granulation, and high during peak coating and packaging operations. Their previous always-on rotary screw system ran at full load regardless of demand. The EP-CMW11-0.8's three-stage PLC management reduced the compressor's energy consumption by approximately 38% in the first year by matching head count to actual production demand throughout each 24-hour cycle. The quality team also valued the guaranteed oil-free output for their GMP coating pan air supply, which had previously required regular oil filter replacement and validation documentation.
★★★★★
"38% energy reduction in year one from demand matching alone. And our GMP coating air validation is now permanent -- no more filter change revalidation." -- Engineering Manager
Australia -- Industrial Coating Plant
Maintaining Consistent Booth Pressure Across a Twelve-Gun Operation
An Australian industrial coatings contractor operating a twelve-spray-gun automotive component facility experienced persistent pressure droop during peak shifts when all guns were active simultaneously. Their installed single-unit 8 kW screw compressor could not sustain the required flow at all twelve stations concurrently. The EP-CMW11-0.8's 1245 L/min capacity provided the headroom required, and the oil-free output eliminated a recurring fish-eye defect on their highest-value clear-coat components that had been traced to oil aerosol in their previous compressed air supply. First-pass quality on those components improved from 91.2% to 98.6% within two months of installation.
★★★★★
"All twelve guns running with no pressure droop, fish-eye defects eliminated, and first-pass quality up from 91% to 98.6%." -- Plant Quality Lead
Frequently Asked Questions -- EP-CMW11-0.8
How does the three-head configuration manage energy across varying demand levels?
The touch-screen PLC continuously monitors system pressure and activates only the number of scroll heads needed to maintain it within the operating band. At low demand -- overnight or single-service operation -- one head handles the load. At medium demand two heads run. At peak production all three operate simultaneously. This three-step demand response means energy consumption scales directly with production activity rather than a large single compressor running at partial load continuously.
Can one head be serviced while the other two continue supplying air?
Yes -- this is one of the primary advantages of the multi-head architecture. When the PLC triggers a maintenance reminder for a specific head, that head can be stopped and isolated for servicing while the remaining heads continue operating. The controller automatically adjusts the running strategy to compensate, maintaining compressed air supply throughout the maintenance window without production interruption.
What touch-screen control interface does this unit use?
The EP-CMW11-0.8 uses a touch-panel PLC controller as standard for three-head configurations. The touch screen displays individual head operating status (running/standby/fault), system pressure, discharge temperature per head, cumulative running hours per head, individual maintenance reminders, and active fault codes with descriptive text -- all accessible from a single screen without navigating sub-menus.
Is the EP-CMW11-0.8 suitable for GMP pharmaceutical manufacturing?
Yes. The structurally oil-free output is compatible with GMP pharmaceutical air quality requirements. The three-head design provides two levels of built-in redundancy, and individual head maintenance capability allows service activities without production interruption -- directly supporting the continuous operation and batch integrity requirements common in pharmaceutical solid dosage and aseptic filling environments.
What electrical supply does this compressor require?
The EP-CMW11-0.8 requires a three-phase supply appropriate for 11 kW total installed motor power. As regional supply standards vary, exact voltage, frequency, and circuit protection specifications should be confirmed with Ever Power's technical team during the application enquiry process. The permanent magnet motors with built-in inverter drives are adaptable to the supply voltages most commonly used in industrial installations globally.
Submit Your Enquiry -- EP-CMW11-0.8
The EP-CMW11-0.8 represents the high-volume tier of the oil-free scroll compressor range -- combining the precision engineering of individual scroll heads with the operational intelligence of multi-head management. Ever Power's application team provides full support from initial sizing through installation commissioning. Review the complete EP-CMW product range across all power and pressure options, or learn more about Ever Power's engineering and manufacturing capabilities.
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