CM75PVF Permanent Magnet Variable Frequency Screw Air Compressor

Up to 35% Energy Savings

The PM motor + VFD combination matches motor speed precisely to demand. In part-load conditions — which account for the majority of operating hours in most UK production environments — energy consumption drops dramatically compared with fixed-speed machines of equivalent capacity.

73 dB(A) Low-Noise Operation

At just 73 dB(A), the CM75PVF comfortably meets UK workplace noise regulations under the Control of Noise at Work Regulations 2005. It can be positioned closer to production areas, reducing pressure drop across long pipework runs and improving overall system efficiency.

Wide Pressure Flexibility

Three pressure configurations — 0.8, 1.0, and 1.25 MPa — allow a single platform to serve diverse downstream equipment. Whether you operate CNC machining centres, pneumatic conveying systems, or laser cutting machines, the CM75PVF can be specified to exactly match your system design pressure.

IP54-Grade Protection

The permanent magnet motor is engineered to IP54 protection standards as standard, offering resilience against dust ingress and water splashing — particularly valuable in foundries, steel fabrication shops, and coastal industrial facilities around the UK where ambient air quality is variable.

Intelligent Control System

The integrated smart controller monitors inlet temperature, discharge pressure, motor current, and oil levels in real time. Fault diagnostics, maintenance reminders, and optional remote monitoring integration mean your engineering team has full visibility without manual checks — critical for 24/7 production sites.

Direct-Drive Airend

The twin-rotor screw airend is direct-coupled to the PM motor shaft, eliminating belt, coupling, and gearbox losses that are common failure points in older designs. This direct-drive architecture reduces maintenance intervals, lowers vibration transmission to the foundation, and extends overall service life beyond 80,000 hours under normal operating conditions.

Air Intake & Filtration

Ambient air is drawn through a multi-stage intake filter, removing particulates down to 1 micron. The clean air path protects the airend bearings and prolongs the oil service interval.

PM Motor + VFD Speed Control

The variable frequency drive reads demand pressure continuously and adjusts motor speed between 25 Hz and 50 Hz within milliseconds. The rare-earth permanent magnet rotor maintains high power factor (>0.95) across the entire speed range.

Screw Compression Stage

Twin precision-ground helical rotors compress the air-oil mixture in a single stage. The asymmetric rotor profile optimises specific power at each operating point, achieving maximum thermodynamic efficiency across the full FAD range.

Oil Separation & Cooling

The compressed air-oil mixture passes through a high-efficiency oil separator cartridge, reducing residual oil content to under 3 ppm. A thermostatic bypass valve and large-surface cooler maintain oil temperature within the ideal operating band regardless of ambient conditions.

🔧 Automotive Manufacturing & Assembly

Body-in-white assembly, paint shop booths, and torque tooling stations across the English Midlands rely on sustained, pressure-stable compressed air. The CM75PVF’s VFD eliminates pressure fluctuation during high-demand peaks, improving tool consistency and reducing scrap rates.

🍽️ Food & Beverage Processing

Yorkshire and Lancashire food factories require low-oil compressed air for packaging conveyors, bottle-blowing, and pneumatic dosing systems. The CM75PVF’s sub-3 ppm oil carry-over makes it suitable for indirect food-contact applications where Class 2 air quality is the target, especially when paired with downstream filtration.

✂️ Laser Cutting & Sheet Metal Fabrication

Laser cutting machines demand consistent flow at stable pressure for assist gas delivery and nozzle purging. The CM75PVF’s real-time pressure control prevents the pressure dip that causes cut-edge quality failures, making it a natural fit for metal fabrication shops across the West Midlands, South Wales, and Scotland.

🏗️ Construction & Civil Engineering Contractors

Temporary site compounds from Manchester to Bristol increasingly specify fixed-installation compressors for ground investigation equipment, concrete form vibrators, and shotcrete nozzles. The CM75PVF’s robust enclosure and wide ambient temperature range (−5°C to +45°C) covers the majority of British seasonal conditions year-round.

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We had concerns about noise levels because the compressor room shares a wall with our quality inspection bay. Running at 73 dB(A), the CM75PVF has been completely unobtrusive. Our inspectors haven’t raised a single complaint since commissioning.

“

The quotation and technical support process with Ever Power was straightforward — they understood our 1.0 MPa ring main requirements from the first call and provided a detailed energy audit before we committed to purchase. The delivery and commissioning were completed within three weeks of the order.

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We specified the 1.25 MPa variant to drive our high-pressure test rigs and the performance has been exactly as quoted. Eighteen months in, we’ve had zero unplanned downtime. The remote monitoring module lets our maintenance team check on the machine from mobile — a genuinely useful feature for a lean maintenance team.

✓ Custom Voltage & Frequency

415V / 400V / generator-compatible builds

✓ Heat Recovery Units

Up to 75% energy recapture as hot water for process or space heating

✓ ISO 8573-1 Purity Packages

Integrated dryer and filtration to Class 1-2-1 or Class 1-4-1

✓ Marine / Offshore Coating

Salt-spray resistant coating for UK coastal & platform sites

How much can a UK food processing plant actually save in annual energy costs by switching to the CM75PVF variable frequency screw air compressor from a fixed-speed unit?

In a typical UK food manufacturing environment with two-shift operation and a load profile that averages 55–65% of rated capacity, the CM75PVF consistently delivers 25–35% lower electrical consumption versus a comparable fixed-speed machine. Based on an average UK industrial electricity rate of approximately 28 p/kWh (as of 2024), a 75 kW facility running 4,500 hours per year can expect annual savings in the range of £15,000 to £28,000 — though exact figures depend on site-specific demand profiles. Our application engineers provide a complimentary pre-sales energy audit for UK customers upon request.

What is the typical price and lead time for the CM75PVF permanent magnet screw air compressor delivered to a site in the United Kingdom?

Pricing varies depending on the pressure variant selected, any custom engineering options, and current freight rates from our manufacturing facility. To receive an accurate quote delivered to your UK address, please contact our team at [email protected] with your site postcode, desired operating pressure, and estimated daily operating hours. Standard in-stock units can typically be delivered within 3–5 weeks to most mainland UK locations. Custom-specified machines have a lead time of 6–10 weeks.

Which pressure variant of the CM75PVF should a Scottish metal fabrication workshop choose when supplying both laser cutting machines and general pneumatic tools simultaneously?

For a mixed application environment supplying laser cutting assist gas at typically 8–12 bar alongside general tools at 6–8 bar, the 1.0 MPa (145 Psi) variant is usually the most practical starting point. This configuration delivers between 4.57 and 11.42 m³/min of FAD, which covers the majority of combined-demand scenarios in a medium-sized fabrication shop. If laser cutting constitutes more than 60% of total air consumption and cutting speeds are maximised, consider the 1.25 MPa variant for additional headroom. Our engineers are available to review your specific machine list and calculate the correct system design pressure.

How does the CM75PVF variable frequency screw compressor perform in terms of reliability when running continuously at a Northern Ireland manufacturing plant operating 24 hours a day?

The CM75PVF is designed for 24/7 continuous duty. The direct-drive PM motor eliminates belt and coupling wear — traditionally the most common failure mode in screw compressors at this power class. The screw airend is rated for a minimum service life of 80,000 hours before major overhaul under normal operating conditions. The intelligent controller schedules oil filter and separator maintenance reminders based on actual running hours rather than fixed calendar intervals, which reduces unnecessary maintenance costs for continuous-operation sites in Northern Ireland and elsewhere in the UK.

Where can a UK buyer get a reliable supplier quote for the CM75PVF and what documents are available to support a capital expenditure approval process?

Ever Power provides a comprehensive quotation pack for UK procurement processes, including: formal written price quotation with CIF UK port Incoterms, full technical data sheet with ISO-tested performance figures, CE Declaration of Conformity, PSSR 2000 compliance statement, dimensional drawings in DXF and PDF, and a site installation checklist. To initiate the process, email [email protected] with your company name, delivery address, and compressed air requirements. The quotation is typically returned within one business day.