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The ROTORCOMP EVO1‑NK is a German‑made, oil‑lubricated screw compressor compact module, part of ROTORCOMP’s EVO®‑NK series. ROTORCOMP VERDICHTER GmbH, founded in 1980 and headquartered in Munich, Germany, is a globally leading OEM supplier of screw air ends and a member of the BAUER Group–a company with over 50 years of experience in screw and piston compressor manufacturing.
The EVO1‑NK is not a conventional stand‑alone screw air end. Instead, it is a highly integrated screw compressor compact module that combines all the core components of a compressor system into a single unit, including:
EVO® oil‑lubricated screw air end (with ROLLING PROFILE® rotor profile)
Inlet valve (with control unit) and air filter
Oil‑air separation system (including coalescing filter) and oil separator tank
Oil filter and oil thermostatic valve
Minimum pressure valve and non‑return valve
| Model | EVO1-NK |
| Max Flow rate | 2.2~5.5kW |
| Max Flow rate | 0.8m3/min |
| Pressure Range | 5~15 Bar |
| Weight | 34kg |
Key Features & Advantages
German‑Made Quality
“Made in Germany” – engineered and manufactured at ROTORCOMP’s headquarters in Munich
100% factory‑tested – each compact module is performance‑tested as a complete system before shipment
Part of the BAUER Group – backed by over 50 years of screw compressor expertise
EU‑certified AEO (Authorised Economic Operator) status
Highly Integrated Design – Reduces Total System Cost
7 core components integrated into one unit: air end, inlet valve, air filter, oil‑air separation system, oil filter, oil thermostatic valve, and minimum pressure valve
Fewer pipe connections – significantly reduces leak points (Viton® O‑rings used throughout)
Lower engineering, manufacturing, and logistics costs – more cost‑effective than traditional “air end + separate components” solutions
Compact footprint – ideal for small compressor enclosures
Advanced EVO® Technology – ROLLING PROFILE® Rotor Profile
High efficiency & low noise – the new ROLLING PROFILE® rotor design delivers efficient compression with reduced noise levels
Extended service life – larger bearings combined with the wear‑free ROLLING PROFILE® design
Wide pressure range – 5–15 barg (70–220 psig), covering most industrial applications
High Reliability – Designed for Continuous Operation
Engineered for industrial applications and 24/7 continuous duty
Low power consumption – optimised torque characteristics and reduced internal friction
Low vibration – smooth rotor rolling and optimised discharge ports
Easy Maintenance – Reduces Operating Costs
All components accessible from one side – no special tools required
Optional accessories: safety valve, oil level sight glass, service indicator, etc. – facilitate routine inspection and preventive maintenance
Flexible Drive & Mounting Options
Compatible with all drive types – belt drive, direct coupling, or gear drive
Base mounting and face‑flange mounting – maximises design flexibility for OEM packagers
Application Industries
The ROTORCOMP EVO1‑NK compact module is suitable for stationary, portable, and special‑purpose air compressor applications, including:
Small Industrial Compressor Manufacturing：OEM core component for 2.2–5.5 kW small screw compressor packages
Portable Compressors：Core compressor module for vehicle‑mounted or towable systems
Textile Industry：Air‑jet looms, pneumatic control systems
Chemical Fibre & Texturing：Process compressed air
Glass Industry：Float glass production line pneumatic systems
Pharmaceutical & Food Packaging：Clean compressed air systems
General Manufacturing & Automation：Pneumatic tools, automated equipment supply
Specialty Gas Compression：ROTORCOMP also offers screw air ends for gas compression applications
