Improper tensions, either high or low, can severely damage the belt and other key components of your conveyor system. Joy Global offers a comprehensive range of take-up options, including winches and hydraulic take-ups that are designed for your specific application.
All-Electric constant tension winch
Our All-Electric constant tension winch provides a revolutionary alternative to traditional take-up designs that use sheaves and hydraulic power systems. With a belt capacity ranging from 40’ to 1500’ and line pull ranging from 25,000# to 125,000#, the Joy electric constant tension winch is capable of providing belt tensioning requirements on lengthy, high-tension applications.
The design allows you to monitor belt tensions and provides the ability to apply variable rope pull to the take-up carriage or belt storage unit. The winch is “smart” and can adjust to dynamic load conditions found in many complicated systems. It also allows the motor to reach full torque at zero speed. These features help maintain proper belt tensions regardless of load conditions and belt speed.
All-Electric pony winch
Our All-Electric pony winch is a compact version of our constant tension winch. Pony winches allow digital control and are designed to maintain belt tension at a constant level. The Pony winches are available in 30, 40, and 50 horsepower configurations and are ideal for systems that do not require extremely high take-up tensions. The standard configuration includes a non-grooved drum, gearbox, electric motor, electric brake, encoder, and controller. The drum can be grooved, as an option.
Pony winches provide self-control capabilities and easy-to-use screen-based data feedback.
Hydraulic winches are also available for take-up and belt storage unit applications.
Hydraulic take-up options
Our hydraulic cylinder take-up sections are designed to pull slack out of the belt for a smooth conveyor start, regardless of the loading conditions. These take-up sections can withstand extreme conditions with minimal downtime. The hydraulic take-ups are available in arrangements ranging from 10’ to 40’ of travel.
Hydraulic power units
The Joy hydraulic take-up power unit provides an accurate, reliable mechanism for proper tensioning of your belt system. All units are factory set and tested based on your tension requirements.
A system of pressure-sensing switches provides constant monitoring of the hydraulic circuit:
- A low-pressure switch starts the hydraulic pump when a minimum safe operating level is reached.
- A high-pressure switch stops the pump action when the maximum level is attained.
This switch method provides an intermittent operating motor and pump as opposed to a continuous system, resulting in reduced maintenance requirements.
All hydraulic unit components, including the accumulator, are integrally mounted on a common welded-steel, skid-type base. The hydraulic power unit is designed to be compatible with either fire-resistant fluids, standard hydraulic fluid, or synthetic fluids. Our power units are available in 460, 575, 995 volt AC in 25, 40, 60, 100 and 125 horsepower arrangements.
Immersion heating element and control circuits are available for cold-climate operations.