Products Catalog

Thern 4HPF series power winches feature helical/parallel, high efficiency gearing making them ideal for applications requiring long travel distances and faster line speeds. The enclosed, direct-drive gearing design delivers dependable operation and helps reduce maintenance, while a modular design means we can easily customize these winches to meet your exact specifications.

Thern 4HS series power winches feature dual stage gear reduction for economical handling of large loads. The combination of helical/bevel or helical/parallel and spur gearing make these winches ideal for applications requiring long travel distances and faster line speeds. Our modular design also means we can quickly customize these winches to meet your specific requirements.

Thern 4HWF series power winches feature helical/worm gearing making them ideal for applications requiring secure load control and accurate positioning. The enclosed, directdrive gearing design delivers dependable operation and helps reduce maintenance, while a modular design means we can easily customize these winches to meet your exact specifications.

Durable and dependable, Thern heavy duty power winches are built to handle the tough jobs year after year With the capacity to lift or pull up to 6,500 lbs., these hard-working winches can be found positioning work platforms in aerospace applications or raising and lowering equipment in wind turbines for power generation.

Our heavy duty power winches are available in a number of standard configurations, which can be quickly and affordably modified to create the ideal winch for your application.

Standard features of Thern heavy duty power winches include:
• TEFC brake motors, enclosed machine cut gearing and self-aligning flange style ball bearings.
• Worm and spur gears are hardened for durability.
• Drum includes outside flange anchors to allow uniform winding and help extend wire rope life.
• Fabricated frame captures both ends of drum shaft for added security, and is easily altered for modified drum widths.
• Clutch option allows the drum to freespool for rapid pay out of wire rope. Use clutch models for horizontal pulling only.
• Standard winch is designed for base mounting or is easily altered for wall or ceiling installation.
• Custom modifications available for Thern heavy duty power winches include grooved drums, special drum lengths and diameters, limit switches, roller pressure bars and special finishes. Pneumatic, hydraulic and alternate motor voltages are also available.

The Cascading Chute Positioning Winch vertically positions cascading loadouts to chute during the barge loading process. This system has two lift lines for controlled positioning of chute.

Product Features:
• Load Rating: 9,800 lbs.
• Line Speed: 15 fpm
• Travel Distance: 40 ft.
• Power: 460 VAC, 3 phase
• Grooved drum for uniform spooling of wire rope
• Non-standard drum length to increase cable capacity
• Rotary limit switch to limit travel in both directions
• Two cable anchors to accommodate two lift lines
• Custom color epoxy finish to meet customer's safety specifications

The Conveyor Maintenance Winch is used to lift a 50 ton conveyor counterweight in gravity take up tower during routine conveyor maintenance. The winch is mounted at top of tower with two separate two-part rigging lines to load.

Product Features:
• Load Rating: 56,000 lbs. to deliver 100,000 lbs. with two-part rigging
• Line Speed: 18 fpm
• Travel Distance: 50 ft.
• Power: 460 VAC, 3 phase
• Dual compartment drum for two lift lines
• Controls with pendant for remote operation

Winches for Pulling & Positioning Railcars

In the rail yard, shipyard or wherever bulk materials are on the move, Thern power winches provide the power and control needed for dependable handling of heavy loads. From positioning barges to pulling rail cars, positioning chutes to hoisting equipment, our winches are working in all areas of bulk handling.

For instance, some customers use, a power winch to position a loading spout used to load clinker for producing cement into trucks. In other applications, dual winch systems are used to control elevation and extension for load chutes. Our power winches provide the high startup torque required for pulling heavy loads like rail cars. Another application is using a power winch to lower load-out chutes on sand towers.

Product Features:
• Load Rating: 30,000 lbs.
• Line Speed: 40 fpm
• Travel Distance: 625 ft.
• Power: 380 VAC, 3 phase, 50 hertz
• Extended groove drum for single layer wrapping and uniform speed
• Chain driven rotary limit switch to limit travel in both directions
• Epoxy gray finish for improved corrosion resistance in marine environments

Move up to 2,000 lbs. with confidence using a portable power winch from Thern. Constructed of cast aluminum, these lightweight winches are designed to deliver the muscle where and when you need it – on the construction site, in the mines, at the wastewater treatment plant, even aerospace facilities.

Thern portable power winches are available in either worm gear or worm/helical gear configurations to efficiently raise, lower and pull loads weighing up to 1 ton. We also offer a variety of options to meet the needs of your unique application.

Thern portable power winches are manufactured with the following features:
• Machine cut worm gears for accurate operation and long lasting service.
• Enclosed oil bath provides continuous lubrication of gears to minimize wear.
• 115 Volt Single Phase Electric Motor includes power cord with grounded plug and a momentary contact-type push button pendant control on a control cord.
• Oil seals keep oil in and dirt out.
• Internal mechanical brake provides positive load control for lifting and lowering operations.
• Ball Bearings and self-aligning bronze bearings provide smooth and efficient operation.
• Corrosion Resistant durable paint finish protects against corrosion in harsh environments.
• Pressure Plate applies pressure to drum and wire rope to help maintain uniform winding. Included in standard Atlas Construction Winches.
• Large Diameter Drums minimize wear to the wire rope and help extend its life.
• Dual Function Cable Anchor for quick disconnect of wire rope with swagged ball fitting, or recessed cable anchor with set screw for wire rope with unfinished end.
• Clutch Models allow operator to manually disengage the drum to rapidly unwind wire rope. Clutch models do not include pressure plates.
• Accessory Options include limit switches, cable pressure plates, torque limiting controls, and emergency handles for manual operation.
• Mounting options include floor, wall and ceiling.
• Wire rope assemblies are sold separately.
• 2-year Limited Warranty

Move up to 2,000 lbs. with confidence using a portable power winch from Thern. Constructed of cast aluminum, these lightweight winches are designed to deliver the muscle where and when you need it – on the construction site, in the mines, at the wastewater treatment plant, even aerospace facilities.

Thern portable power winches are available in either worm gear or worm/helical gear configurations to efficiently raise, lower and pull loads weighing up to 1 ton. We also offer a variety of options to meet the needs of your unique application.

Thern portable power winches are manufactured with the following features:
• Machine cut worm gears for accurate operation and long lasting service.
• Enclosed oil bath provides continuous lubrication of gears to minimize wear.
• 115 Volt Single Phase Electric Motor includes power cord with grounded plug and a momentary contact-type push button pendant control on a control cord.
• Oil seals keep oil in and dirt out.
• Internal mechanical brake provides positive load control for lifting and lowering operations.
• Ball Bearings and self-aligning bronze bearings provide smooth and efficient operation.
• Corrosion Resistant durable paint finish protects against corrosion in harsh environments.
• Pressure Plate applies pressure to drum and wire rope to help maintain uniform winding. Included in standard Atlas Construction Winches.
• Large Diameter Drums minimize wear to the wire rope and help extend its life.
• Dual Function Cable Anchor for quick disconnect of wire rope with swagged ball fitting, or recessed cable anchor with set screw for wire rope with unfinished end.
• Clutch Models allow operator to manually disengage the drum to rapidly unwind wire rope. Clutch models do not include pressure plates.
• Accessory Options include limit switches, cable pressure plates, torque limiting controls, and emergency handles for manual operation.
• Mounting options include floor, wall and ceiling.
• Wire rope assemblies are sold separately.
• 2-year Limited Warranty

The 3WG4 Series power winch from Thern packs power and performance into a compact and lightweight package for pulling or lifting. Featuring rugged construction and precision machining, this winch delivers the pulling and lifting strength you need on the work site.

Fully-enclosed precision worm gearing ensures smooth,dependable, long-lasting operation, while sturdy lifting handles allow for easy transport.

Machine Cut Gears: Provide high efficency and smooth operation.

Enclosed Oil Bath: Reduced wear on gears for long operating life. Oil seals keep oil in and dirt out.

Cast Aluminum: Combines rugged work site durability with a lightweight package.

Internal Mechanical or Motor Brake: Provides a positive load control for lifting and lowering operations

Ball Bearings: Provide smooth and efficient operation.

Lifting Handles: Aid in work site lifting and positioning.

Dual Function Cable Anchor: Has both standard set screw slot and keyhole slot on drum for quick disconnect with 3/8 inch swaged ball ends.

Mounting Options: Include floor, wall and ceiling configurations.

Modular Design: For easy product customization and quick lead times.