The Pro-Gear Series “Q-LT “ quarter turn gearboxes are rugged, industrial grade products, manufactured with ductile cast iron housing and components. All models in this series feature high performance bearings and a powder coated finish.

The Q-LT series is highly suitable for all low temparature industrial applications as well as low temparature applications in chemical and power plants. Pro-Gear’s operators are intended for the operation of ball, plug and butterfly valves as well as power and process dampers. The usage of high grade of materials provides a tough, reliable unit for the automation of today’s high performance industrial valves. Several options such as padlocking devices, memory stops, spur gears and limit switchboxes can be eassily mounted on site without any machining, due to the inte­gration of all necessary connections on the housing.


  • Stainless Steel input shaft
  • Stainless Steel fasteners
  • Standarised according to DIN / ISO 5211
  • 13 Models up to 70.000 Nm. output
  • Axial needle bearings
  • Centellen gasket material
  • Sealed position-indicator
  • Powder coated / polyurethane coated finish
  • Insert bush system for flexibility and reduced lead times
  • Carefully choosen ratio's are increasing MA-rates
  • Blind tapped PCD's

  • 14 Models
  • Up to 70.000 Nm. Torque range
  • -5° to 95° stroke
  • IP68 sealing
  • -40 °C to + 110 °C (-60 °C upon request)