Since 1948, Thern has been offering lifting, positioning, pulling & tensioning solutions in water / wastewater, entertainment, construction, material handling, energy, marine, mining, defense / aerospace and manufacturing applications. It is headquartered in Winona, Minnesota, USA and is ISO 9001:2015 certified, maintaining strict quality standards and ensuring high performance & durability. Read More
Motor-powered winches capable of lifting, pulling and positioning loads up to 100000 lb. Feature a worm gear and are used in applications that require accurate positioning
Used to lift, lower and position heavy objects manually and are available in worn gear and spur gear variants with options in zinc plated, electropolished and enamelled finish
Thern product line includes manual & electric winches and davit cranes in stationary and portable models. Thern electric winches are powered by a motor having power up to 1.33 hp and have a worm gear for lifting, pulling or positioning applications that require secure load control, high line speed and accurate positioning. Thern hand winches are used for manually positioning heavy objects weighing up to 10000 lb by lifting or lowering them and are available in worm gear and spur gear variants. Thern winches are offered in a wide range of finishes like zinc plating, electropolishing and enamelling with different overall dimensions & gear ratios.
Thern products' model numbers generally cross individual reference to the equivalent Fervi, Dayton & Warn MPNs (manufacturer's part numbers). So, if you're looking for winches & accessories that are either out of stock or obsolete, chances are Raptor Supplies has the alternate product available.
These Thern products are generally small in size and require compact packaging. They are suitable for courier shipment and not air freight.
This Thern portable davit crane is an easy-to-use crane suitable for applications where adjustable reach is not needed. It is lightweight, economical and easy to carry with a manual or powered operati...Read more
Thern Ensign portable davit cranes are ideal for lifting & rotating taller loads up to 360 degrees with minimal boom adjustment. Their longer mast & boom construction allows extra hook height for clea...Read more
Thern Liberty Series capstan winches feature a swivel base for securely lifting, pulling & tensioning at any angle using an optional hitch mount. Users just have to position their truck once, then rotate the winch to lift / pull the load before locking it down. They are suitable for energy-related applications in remote locations like pole settings, maintaining wind turbines, stringing lines & erecting cell towers.
Hoists are pulling devices that lift loads vertically using a wire rope or chain. Thern winches, on the other hand, can pull loads both horizontally & vertically when placed in floor-mounted, wall-mounted or underhung orientation. Hoists also need an automatic brake in vertical lifting applications to prevent accidents whereas winches that are used for horizontal pulls do not require a brake.
Hand winches require manual turning of the winch handle by the user. Electric winches use an electric motor to turn the drum containing wire rope and spool the lifting rope.
Choosing of underwounding versus overwounding of a wire rope depends on the Thern winch being selected or more specifically the brake incorporated into the winch. Hand winches mostly come with disc brakes that hold the load in only one direction. Winding the wire rope incorrectly may cause the winch to operate against the brake. This may lead to brake failure, resulting in the load falling or causing injury.
