CUSTOM ENGINEERED CRANE SYSTEMS THAT ARE BUILT TO LAST
Uesco Cranes manufacturers’ single and double girder cranes in both top running and under-running configurations; all featuring dual-motor drive systems. Capacities range from 1/2 thru 40 tons, with spans to 100 ft. Custom designed cranes to meet your specific needs are also available, providing the same performance and serviceability evident in the pre -engineered crane systems. Uesco also offers all major brands of hoists, jibs, workstation cranes, radio controls, under the hook attachments, and other crane accessories.
Specifications for Standard Cranes, Single and Double Girder, type SA & RA
Service Class – All cranes are rated for a minimum CMAA Class C service.
Controls – All standard cranes feature electronic soft-start for a cushioned acceleration and adjustable torque magnetic disc brakes for smooth stopping of the load. Controls are full magnetic including a manual fused “through the door” disconnect with lockout handle, mainline magnetic disconnect, a 110 vac control circuit, thermal overload relays and branch circuit fusing all housed in a NEMA 12 control enclosure. Equipment is designed to operate on 230 or 460 volt, 3 phase, 60 hertz.
End trucks – Crane end trucks are fabricated from structural steel channels or plates welded into a rigid frame. Top running wheels are forged steel hardened to 325 Bhn minimum. Drive wheels are tapered tread. Underrunning wheels are forged steel and have a crowned or flat tread for operation on standard S beam, wide flange beam or patented track. Rubber bumpers and rail sweeps are standard on all cranes.
All Uesco dual-motor crane drives are double or triple reduction parallel shaft, helical/spur reducers splash lubricated for dependable service and longer life. Minimum B-10 bearing life is 5,000 hours. The bridge drive motors are flange mounted with a standard Nema C or D flange and are 30 minute rated with Class F insulation. Thermal detectors embedded in the motor windings provide overload protection and meet the latest publication of the National Electric Code.
Bridge girders – Bridge girders are fabricated from structural shapes, reinforced as necessary to build a rigid lifting frame. All double girder cranes have a minimum deflection of L/888, single girder cranes L/600. All cranes have a minimum safety factor of 5:1. Included are (3) 100 amp sliding shoe collectors and a 4 motion pendant suspended from the control panel for emergency on/off and bridge travel forward/reverse. When ordered with a wire rope or electric chain hoist, the pushbuttons of the hoist and crane are combined into one control station either hoist suspended or suspended from an optional flat cable festoon system. Standard bridge electrification is flat cable suspended in loops from a steel track. Weights of typical hoists and trolleys are included in the wheel loads. Impact is not included. Shipping weights are for the crane only. Refer to the hoist manufacturer’s information for hoist shipping weights.
Radio control or pendant from separate track, 2 speed or adjustable frequency control, NEMA 12, 3R of 4 control enclosures, warning device, flashing lights, pilot lights, crane lights to illuminate the work area, travel limit switches, hazardous environment and spark resistant, dual-hoist control with selector switch, rigid electrification, cable reels for below the hook attachments, magnet or bucket service, footwalks, service platforms and cabs, longer time rated motors or higher class of motor insulation for high temperature environment, thermal overload relays, circuit breakers and branch circuit fusing. These and many more options are available for your Uesco crane. Please consult the factory or your local Uesco distributor with all the requirements of your application.