RO 40-300 G

Witting Rotary Vane Compressor

Air-cooled rotary vane compressor for handling a wide range of gas applications.

  • Capacity up to 2,300 m³/h
  • Pressure from 3.5 to 15 bar (abs.)


  • Suction-side inlet pressure up to 2.5 bar (abs.)
  • Maximum compression pressure 15 bar (abs.)
  • Optimal energy efficiency at a specified operating point
  • Direct drive via coupling
  • Maximum reduction of residual oil content to 0.003 mg / m³ using post-filters
  • Frequency controllable between 30 and 60 Hz
  • Limp-home capability
  • Single shaft
  • Simple and rugged design with few rotating parts
  • Low rotational speed: 1,480 rpm
  • Low noise and vibration
  • Small footprint
  • Foundation-free installation

Cost Efficiency

  • High efficiency at  high availability
  • Low energy consumption
  • Exceptional safety standard
  • Optional heat recovery
  • Up to 100,000 operating hours without overhaul
  • Long service life of bearings and rotors
  • Bearings can be changed on site
  • Easy to install


Parts and Services Logo


Service and maintenance are costly and time consuming necessities. To keep your costs down we offer hands-on workshops for your technicians to empower them to carry out service fast and efficiently at your plant. Successful attendance of our in-depth trainings for ATEX machines is rewarded with a certificate. If your machine actually breaks down we provide fast and efficient support from the factory. 



Suitable for transporting explosive gases and vapors in explosion group IIB, temperature class T3 in zone 1. It can be operated in zone 1.

II inside 2G c IIB T3,

II outside 2G c IIB T3



Special Features

  • Customer specific design of systems
  • Implementation of special solutions
  • Design, planning and manufacturing of complete system solutions for numerous gas and offshore applications