Agent in China
Rotech System Components (HK) Limited
Tel.: +86-13701822962
Im Katzentach 16-18
76275 Ettlingen
Phone: +49 (0) 7243-5931-0
Fax: +49 (0) 7243-5931-31


Your specialist for limit-switch-boxes and accessories components for pneumatic actuators and industrial valves.

Product news

  • Pressure capsulated Aluminium housing

    Pressure capsulated Aluminium housing
    New, pressure-capsulated aluminium housing [Ex d] available. Easy maintenance and service through a new swiveling cover and only three screws, suitable for ambient temperature down to -60° C and new impact-resistant protector for vision beacon.


  • Hight adjustable mounting kit

    Hight adjustable mounting kit
    The new mounting-kit comes with a in five steps hight adjustable bracket. So all possible limit-switch-boxes can be mounted on many valves with ISO-top-flanges. All parts are made of high grade stainless steel.
  • Doubler 180°

    Doubler 180°
    Redundancy is an often required standard in safety systems. Using pneumatic actuators many times results in space problems, as the standardized interface according to EN15714 (VDI/VDE 3845) o!ers one mounting possibility only. For this needs the Doppler has been designed ...
  • Pressure capsulated V2A-box

    Pressure capsulated V2A-box
    The pressure capsulated limit-switch-box (Ex d) of high-grade V4A-stainless steel is suitable for difficult ambient conditions. The housing was successfully tested by TÜV for protection against water at high-pressure cleaning (IP69k) and protection against permanent immersion (IP68) ....

    Our product range


    • Limit-switch-boxes

      variety of feedback units
    • Open mountings

      Open mountings
      Position switch with stainless steel cage
    • Brackets for modules

      Brackets for modules
      according VDI/VDE 3845
    • Couplings

      Couplings with two-flat, square, feather key groove...
    • Brackets

      Brackets acc. EN15081 and special constructions
    • Adapter sleeves

      Adapter sleeves
      Adapter sleeves for direct mounting
    • Solenoid valves

      Solenoid valves
      Solenoid valves NAMUR and INLINE
    • Pneum. components

      Pneum. components
      Throttle plates, quick-exhaust valves...
    • Accessories parts

      Accessories parts
      Silencer, throttle valves, fittings
    • Positioners

      Electro-pneumatic positioners
    • Gear boxes

      Gear boxes
      ISO-flange gear boxes, declutchable
    • Pneum. contros

      Pneum. contros
      Actuator with booster-, solenoid valve and regulator
    • Control panel

      Control panel
      Pneumatic components on control panel