Pneumatic Pulling Winch

A pneumatic pulling winch is powered by compressed air and used to haul, pull and tension loads horizontally or up an incline. It suits environments where an electric motor is a hazard, such as explosion-risk areas or wet conditions, and continuous work over many hours. Like an electric pulling winch, it is intended for loads that are dragged or rolled, and must not be used to lift a load vertically. Why an air motor An air motor has no wiring, electronics or carbon brushes, so it does not produce sparks. The winch suits refineries, chemical plants, offshore platforms and mines, in models approved for explosive atmospheres. Air flowing through the motor cools it during operation, so the winch suits long periods of work without cooling breaks. The operator controls pulling speed progressively, from a slow creep to full speed, by how far the control lever is pressed. The motor withstands humidity, rain, salt air and dust. Motor types Radial piston motor: delivers high starting torque, suited to pulling heavy loads at relatively low speed. Vane motor: more compact and lighter, reaching higher pulling speeds. Suited to light and medium loads where a fast work rate is needed. Selection data A pneumatic winch uses a large volume of air, so check that the site's compressed air system supplies the pressure and flow the winch requires. Otherwise it will not reach its full pulling force. A filter, regulator and lubricator unit should be fitted on the air line feeding the winch to protect the motor from moisture and dirt. Also determine the required pulling force and the rope length needed for the hauling distance. The model table lists the pulling force, rope capacity, pulling speed, motor type and air consumption for each model.