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Pneumatic Hoists
A pneumatic hoist is a tool that is used to lift or to lower a load. It consists of a motor-driven sprocket, a length of chain with a hook on one end, and a braking mechanism. The air hoist is in a neutral position until compressed air is directed into the air motor, which releases the brake and directs the compressed air into either the forward or reverse side of the motor. The motor rotates a sprocket, which then raises or lowers the load. When the control lever is released, the air motor returns to its neutral position, and the brake engages to stop and hold the load.
Gardner-Denver Air Hoists are manufactured by Cooper Air Tools, an ISO 9001 certified manufacturing plant. Each pneumatic air hoist is rigorously tested and engineered to provide high productivity for a wide range of applications, including clean room hoists, spark resistant hoists, and hoists for food processing operations. Gardner-Denver manufactures pneumatic hoists in limitless combinations of power, speed, weight, size, mounting, and materials to suit virtually any industrial application. Mounting Options Motor Options Rotary Vane Hoists Axial Piston Hoists
Control Options Rope Hoist Control Pendant Hoist Control
Chain Options Link chain Hoists Roller chain Hoists Spark Resistant Hoists
Single or Double Reeved Single Reeved Hoists Double Reeved Hoists
Hook Types Standard Hook Hoists Bullard Hook Hoists
Wheel Type Tapered (Standard) Wheel Flat Wheel Narrow Flat Wheel
When compared to electric hoists, Gardner-Denver Air Hoists offer many advantages in speed, weight, simplicity, spark resistance, and an ability to operate in adverse conditions. Pneumatic hoists have the advantage of smooth variable speed lifting or lowering. Electric hoists, on the other hand, have only one or two speeds, so the switch must be bumped repeatedly to control the lifting or lowering speed. In addition, Gardner-Denver Pneumatic Hoists are 40 to 50% lighter than their electric counter part. This is an important matter when hanging the Air Hoist, or when removing and lowering the pneumatic hoist for maintenance. When performing maintenance on the K5 Series Gardner-Denver Hoist, you remove only four bolts in the end of the hoist body, and the air motor slides out into your hand. Maintenance operations can be performed without having to take the hoist down, which saves time and reduces risk. In the event of a power failure, the load of an electrical hoist cannot be raised or lowered. However, with pneumatic air hoists, typically there is sufficient compressed air available in accumulators to raise or lower the load to completion - an important safety feature!
There is no concern about electric shock with a Gardner-Denver Air Hoist, even if the operator is standing in a wet or moist location. With an electric hoist, a damaged electrical cord presents danger of a severe shock, whereas a damaged air hose does not. In cases where a Gardener Denver Air Hoist is overloaded with too heavy a load, the motor simply stalls out, without creating a safety hazard. In addition, in adverse environments such as bad weather conditions, dampness, dirt, dust, steam or corrosive fumes, Gardner-Denver Pneumatic Hoists are much less affected. In addition, pneumatic air hoists also can operate at a high ambient temperature of 200 degrees F. Gardner-Denver manufactures Spark-resistant Hoists, which feature stainless steel chain and bronze upper and lower hooks. Trolley-mounted hoists feature rubber bumpers and bronze wheels, which are ideal for use in paint booths, grain elevators, munitions factories, and chemical tanks. With the addition of edible grease and a piped exhaust adapter, Clean Room Hoists are ideal for use in food processing, pharmaceuticals, and textile environments. Gardner Denver Air Hoists offer an excellent long-term investment, with many safety advantages. Contact BlueTools.com today to discuss your to order the appropriate pneumatic air hoist for your particular application.
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