EP-CMW9-1.2 Oil-Free Scroll Air Compressor

Staged Load Matching

During periods of lower air demand — overnight, between production shifts, or during partial-capacity operations — only one air-end is activated. The single active unit operates at its optimal efficiency point, consuming approximately half the power of the full two-air-end configuration. This stage-switching is fully automatic based on system pressure and requires no operator intervention.

Wear-Balanced Rotation

The PLC controller automatically alternates which air-end operates as the primary unit and which operates as backup, distributing cumulative operating hours evenly across both. This rotation strategy prevents accelerated wear on a single air-end, extends the maintenance interval for both units simultaneously, and avoids the common failure mode of one unit degrading while the other idles.

Built-In Production Continuity

If one air-end requires maintenance or triggers a fault condition, the second air-end continues to supply 360 L/min of oil-free compressed air automatically — no manual switchover required. For production environments where complete compressor shutdown would halt an entire line, this 50% capacity fallback can be the difference between a brief throughput reduction and a costly unplanned stoppage.

📈 1.2 MPa — World's Highest Scroll Pressure

Ever Power's patented high-rigidity square-frame scroll geometry is the engineering foundation that makes 1.2 MPa operation possible in an oil-free scroll compressor. The scroll element's structural stiffness maintains precise inter-scroll clearance even at maximum pressure loading — the critical condition that causes conventional scroll designs to distort and lose efficiency or fail prematurely. At this pressure ceiling, the EP-CMW9-1.2 opens application territory normally exclusive to multi-stage oil-free screw compressors.

⚡ VSD Permanent Magnet Motors — Energy Class IE4

Each 4.5 kW scroll air-end is direct-coupled to an IE4-rated permanent magnet synchronous motor with inverter variable speed drive. Motor efficiency exceeds 94% across the operating speed range — significantly higher than the asynchronous induction motors used in most fixed-speed compressors. The VSD provides smooth, current-limited starting with no mechanical shock to the scroll elements, extending air-end service life.

🔋 58 dB(A) — Suitable for Technical Environments

At 58 ±3 dB(A), the EP-CMW9-1.2 sits well below the workplace noise threshold for mandatory hearing protection (typically 85 dB(A) in most jurisdictions) and is comfortable for extended occupancy in adjoining spaces. This noise level is achieved through the scroll mechanism's inherently smooth orbital compression cycle, the belt-free and coupling-free direct motor drive, and the structured acoustic enclosure design.

📋 Intelligent Touch-Screen PLC Controller

The PLC controller displays discharge temperature, system pressure, individual air-end status, cumulative run hours, and fault codes in real time on a clear touch-screen interface. Preventive maintenance reminders are generated automatically based on operating hours, ensuring service tasks are never missed. Fault alarm outputs are available for integration into facility SCADA or building management systems.

🔳 Stainless Steel Throughout — No Rust, No Contamination

From the 1 μm intake filter to the 1-inch discharge connection, every surface in the compressed air path — including the buffer storage tank and all internal piping — is manufactured in stainless steel. Rust particles, scale, or metallic contamination from galvanized or mild steel components are eliminated entirely. This is a non-negotiable requirement for electronics, pharmaceutical, and food-adjacent applications.

⛔ Zero Discharge — No Environmental Compliance Burden

The oil-free scroll design generates no oil-contaminated condensate. No oil-water separator is required. No hazardous waste disposal arrangements are needed. For facilities under environmental management certification (ISO 14001 or equivalent), the elimination of compressor oil waste streams simplifies compliance documentation and reduces audit scope. This is a genuine operational cost advantage over lubricated alternatives over a multi-year ownership period.

🇰🇷 South Korea — PCB Surface Mount Assembly Facility

Industry: Electronics Manufacturing  |  Application: Compressed air for SMT pick-and-place machines and reflow oven nitrogen assist

"We operate three SMT lines simultaneously and the EP-CMW9-1.2 handles them all. The transition from our old oil-flooded compressor — with its three-stage filtration system — was seamless. Oil contamination faults on our placement machines went to zero immediately. The VSD energy savings were measurable within the first billing cycle: roughly 9% reduction in compressor electricity consumption versus our previous fixed-speed unit at the same output."

★★★★★

🇳🇱 Netherlands — API Pharmaceutical Manufacturer

Industry: Active Pharmaceutical Ingredients  |  Application: Process air for tablet compression and granulation equipment

"Our GMP audit requirement specifies ISO 8573-1 Class 0 compressed air at the point of use. The EP-CMW9-1.2 was the only 12 HP class machine that could document structural oil-free compliance — not filter-dependent certification. The 1.2 MPa capability also means we can supply our high-pressure granulation press without a separate booster compressor, which simplified our utility room significantly."

★★★★★

🇨🇦 Canada — Aerospace Component Coating Specialist

Industry: Aerospace Surface Finishing  |  Application: High-pressure oil-free air for HVLP and airless spray coating of turbine components

"Aerospace coating specifications are unforgiving — any oil contamination in the air supply fails the adhesion test and triggers a complete strip-and-recoat process. The EP-CMW9-1.2 gives us documented Class 0 oil-free air at the 1.1 MPa working pressure our automated spray systems require. The dual-scroll design also means we have never had a compressor-related production halt in 22 months of operation."

★★★★★