Electric Wire Rope Hoists Configurations

Standard wire rope hoists configurations include low headroom, normal headroom and also double girder trolley designs. All hoists in metric ratings (FEM) or short ton ratings (ASME) meet a broad range of application requirements:

-Double-reeved or single-reeved

-Lifting speed range of about 10/1.5 to 62/10 feet per minute

-0.5 to 80-ton capacities

-208, 460, 380/3/50 or 575/3/60 power supply units

-Lifting begins at around 13ft to 320ft and beyond

Usability

The Large-diameter hoist drum basically means closer approaches and comfortable positioning. The large drum diameter offers a true vertical lift with the single-reeved rope hoist. The result is remarkably fast load positioning and also smooth movement. This ingenious design also means a much shorter frame length, thus allowing closer end approaches.

Trolley and hoist motors are usually designed for productivity and space savings. A typical two-speed hoist motor, designed precisely for hoisting applications, facilitates reliable load handling and offers high starting torque. The trolley motor’s inverter control provides a two-speed or changeable speed control to allow minimal load swing, smooth acceleration and deceleration and also precise load placement.

Safety

Wire rope hoists have an electromechanical load limit system that prohibits the lifting of items that may be over 110% of the allowable capacity. The four-position load limit switch consists of a protection circuit that effectively prevents the block from accidentally running up and destroying the hoist in case a phase reversal occurs.

Thermal motor protection, hardened ground gears, exceptional rope durability, sealed brakes and a user-friendly hook block design with a robust safety latch all contribute to a hoist’s increased reliability and safe operation.

Less maintenance

Sealed dust-resistant brakes on the hoist and trolley motors require minor adjustments for over thousands of cycles and will last for a long time under normal use. The trolley’s slick design reduces wear on various components of the hoist. The trolley chamber is completely enclosed, thoroughly lubricated and designed to be maintenance-free throughout its usage. The trolley wheel bearings are normally permanently lubricated. The inverter control and automatic disc brake prolong the lifespan of the motor and other parts of the hoist, which means low repair costs, less downtime and less maintenance- and overall reduced maintenance or repair costs of your equipment.

Longevity

Wire rope hoists have an innovative gearbox that provides reliable operation and significantly extends equipment life. The revolutionary gear case design reduces pressure on drum bearings, thus reducing maintenance requirements while subsequently extending the equipment’s life. It consists of hardened and ground internal stress reduction gears that run an external drum gear that lies inside the rope drum. The gearbox’s lubrication assists in extending the machine’s life. The hoist’s gear box is usually designed to run on a lower temperature and more smoothly.

Larger hoist drums reduce rope wear and facilitate cooling. A drum ratio of about 40:1 greatly reduces rope flex and extends rope life. The rope drum’s large diameter additionally plays a part in the reduction of frame size and weight, minimizing wear on the hoist’s components and allowing the use of inexpensive crane girders. The strategic arrangement of the hoist motors within the drum enables directed airflow in the drum to promote optimal motor cooling. This particular design also makes the brake and motor unit easily accessible.