Products of
The David Round Company

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Tractor Drives

Standard Tractor Drives Push, pull and position overhead loads with ease of push-button operation. Electric and air-powered tractors motorize hoist trolleys and bridge cranes.	More Info
Free-Wheeling Tractor Drives Motorize overhead trolley movement while maintaining manual positioning ability. As the push-button is released, the drive tire retracts to permit manual operation.	More Info
Enclosed Track Tractor Drives Air and electric tractors are configured to operate on all leading brands of track. Tractors may be operated with push-button pendants or through automatic controls.	More Info
Free-Wheeling Enclosed Track Tractor Drives These dual-mode tractors are ideal for power-and-free conveyor systems. Tractor returns to its normal manual mode when push-button is released.	More Info
Air Powered Tractor Drives Air-powered tractor drives motorize both hoist trolleys and bridge cranes. Replacement pendants are available with extra levers/buttons as required.	More Info
High Speed Tractor Drives These upgraded tractors are ideal for long runs in heavy manufacturing environments. AC inverter drive packages permit variable speed operation and smooth starts.	More Info