Bulk Material Handling

If the conveyor tensioning system employs a counterweight design, a slow-speed winch is the best choice. Thern’s 4HBP and 4BP electric winches feature a simple single-speed control and are an ideal fit for this sort of system. Thern can custom size or custom configure the winch to match the required load and travel distance. If the conveyor tensioning system requires constant tension from the winch, Thern’s 4HBP and 4BP electric winches can be customized with high HP motors and fast rope speeds/reactions to maintain steady conveyor tension/operation. Constant tension applications typically require motor encoders, blower coolers, and sophisticated VFD controls.

Thern barge mover systems employ heavy-duty, industrial-rated 4HBP and 4BP electric winches with fully enclosed/lubricated gearing. These winches are customizable according to system and site conditions. Typical systems include controls with automatic tensioning systems, manual rigging modes, and straightforward joystick controls.

Typically, two electric winches are utilized with opposing pull directions to move and precisely position barges. Thern’s barge system control interface provides simultaneous operation of both winches, while automatically maintaining appropriate rope tensions.

Thern’s barge mover electrical control systems are located where the customer prefers. Wireless radio controls are also available as a popular option in addition to the operator console.

The Thern 4HS Series electric winch is an industry-standard railcar puller when a drum clutch feature is desired for free spooling release of wire rope. Please note that winches with clutches are generally employed only for systems intending one-directional moving of railcars.

Two-way movements of railcars are typically accomplished by means of a “closed-loop” rigging system, controlled by a single electric winch. Thern recommends closed loop-type railcar mover systems for several reasons: these systems provide a high degree of safety, as the railcar movement is always constrained by the winch (of particular importance if any grade exists); the pull rope does not need to be manually pulled to reach railcar hook points (the winch is operated to run the rope and hook to the desired location, eliminating rerigging cables and improving operational efficiency); and reversing the load may not be anticipated during use, but when an overshoot occurs, the closed-loop winch system can easily reverse the railcars. Thern’s 4HBP Series electric winches are designed for heavy pulling applications and feature fully enclosed/lubricated gearing. Thern designs and manufactures custom-sized 4HPF/4HBP winches to match load and travel requirements for any installation.

The travel distance provided by a closed-loop system is determined by the size of the railcar puller winch drum. Thern commonly builds drums providing over 500 ft of active load travel. If the travel requirement becomes excessive, it may be necessary to unhook/rehook the cars more than once to complete the full travel span. All cars can remain connected through the multi-step movement process.

Thern’s industrial-duty 4HPF/4HBP/4BP Series electric winches can be easily customized for multiple drum compartments and wire ropes. The available grooved-drum feature provides uniform pay-in/payout.

Yes, many of our 4HPF/4HBP electric winches are designed specifically for load-out chute applications which require dual drum compartments and dual ropes. These winches typically feature grooved drums combined with drum-mounted rotary limit switches, providing highly repeatable load travel distance and constraints.

Thern’s heavy-duty 4HPF/4HBP/4BP Series electric winches are available with a wide range of load ratings and speeds. Many models are easily customized to accommodate non-standard drum widths to best suit short fleet distances or other installation factors. Multiple drum compartments are available for stackers requiring multiple wire ropes.

Yes, many of our 4HPF/4HBP Series electric winches are designed specifically for radial stacker applications which require dual drum compartments and dual ropes. Our winches typically feature grooved drums combined with drum-mounted rotary limit switches, providing highly repeatable load travel distances and constraints.

Thern offers multiple solutions from material handling lifting equipment to a conveyor belt pulling winch. We even provide a railcar moving winch. We can design a solution specific to your application. The engineering team at Thern can customize virtually any winch in our lineup to accommodate specific speed and control requirements. We can also accommodate site-specific variables such as grade, curvature, and distance. See our online portfolio for some of the most challenging and unique applications we’ve solved for our customers.

Thern’s 4BP electric winches are commonly sized up to 50,000 lbs. Our 4HBP Series can be custom configured for capacities nearing 100,000 lbs.! Leave the heavy lifting to Thern!