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Thern 4HBP Series Helical Planetary Winches

Thern 4HBP series power winches

All Thern winches and cranes are sold without wire rope.


35,000 to 100,000 lb Capacity 

Thern 4HBP series power winches feature high efficiency helical-bevel/planetary gearing making them ideal for heavy-duty applications requiring long travel distances and quick line speeds.


  • Welded steel drum
  • Continuous solid steel
  • drum shaft
  • Wire rope assemblies
  • Flange mounted motor
  • Load holding motor disc brake
  • Direct drive gear reducer
  • Planetary gear drive
  • Flange style roller bearings
  • AMSE compliance
  • 2-Year Limited Warranty


  • 4HBP35M
  • 4HBP40M
  • 4HBP56M
  • 4HBP70M


  • Flange Mounted Motor - Motor is a 230 or 460 volt, 3 phase motor, 60 cycle, IP 54*, TEFC severe duty, reversible, class B or F insulated, continuous duty brake motor. Standard motors comply with relevant standards including NEMA, MG1, ANSI, CSA, IEC1 and ABS.
  • Load Holding Motor Disc Brake - Brake is spring set, electrically released for positive load control.
  • Direct Drive Gear Reducer -  Reducer is comprised of helical/worm gears and delivers lower efficiencies from 65 to 76 percent making winches well suited or applications requiring secure load control and accurate positioning. The heat-treated helical/worm gear set provides improved durability and operates in an oil bath, enclosed in a high strength cast iron gear case, SAE class 30. Double lip oil seals keep oil in and contaminants out. Large capacity bearings ensure long life. Speed reducers meet AGMA standards.
  • Planetary Gear Drive - A compact design that results in a lighter weight winch compared to conventional gearing. Planetary gearing also provides a high peak load capacity.
  • Flange Style Roller Bearing - Bearings are self-aligning with cast housing to maintain smooth drum rotation.
  • Welded Steel Drum - Drum has outside flange anchors, which allow for uniform winding and helps to extend life of wire rope. Anchors allow cable to be over wound or under wound from either side of the drum.
  • Continuous Solid Steel Drum Shaft - Provides uniform winding or wire rope.
  • Extended Steel Drume Shaft - Captures both ends in a fabricated steel frame for optimal strength and security.
  • Wire Rope Assemblies - Sold separately per customer request.
  • AMSE B30.7 Compliance
  • Two Year Warranty - Industry-leading two-year Move It With Confidence limited warranty
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