Activair Pneumatic Differential Engine

Bus Door Actuators - Activair Pneumatic Differential Engine
Bus Door Actuators - Activair Pneumatic Differential Engine

Same as Pneumatic Differential Engine with quicker, easier door speed adjustment knobs and solid-state proximity switches.

Most Vapor bus door actuators are delivered as baseplate assemblies. The baseplate combines the pneumatic engine, linkage, and door suspension into a single pre-assembled unit that mounts directly to the bus structure above the door opening. The baseplate assemblies incorporate a linkage that converts rotary motion from the actuator to linear motion of the linkage rod and back to rotary motion of the door shaft.

  • Easy-to-use door speed adjustment knobs
  • Cushioning onset knob to set precise door open speed - prevents slamming
  • Requires air supply pressure between 90 and 120 psi
  • Solid-state, non-contact proximity switches
  • Optional mechanical lock
  • Maximum velocity and minimum force in the mid-point of its range of motion
  • Maximum force and minimum speed at the extremes of its motion

For front or rear door applications
Exceeds all North American requirements


Related Products

Bus Door Actuuators - ETO Door Actuator
ETO Door Actuator

High-torque, electric motor matched with an electronic controller designed for precise open and close speeds, and extensive data logging capacity

OSSP Bus Door System
OSSP Bus Door System

Electric outside sliding plug door system. Fully integrated system includes actuator mechanism, door panels, mechanical linkages and electronic controller.

Bus Door Actuators - Pneumatic Differential Engine
Pneumatic Differential Engine

Rugged, robust actuator consists of two opposed cylinders of different diameters with pistons connected by a rack. Operation is controlled by applying air to - or venting air from - the larger cylinder.

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