Mechanical & Hydraulic Power Take Offs

A Century of Leadership

Twin Disc has manufactured power take-offs for nearly 100 years—longer than anyone else in the market. As the brand leader in both wet and dry clutch technology, we offer you unmatched expertise in transmitting power to machinery.

Tell us what you need

Complete the Selection Form and let our engineers give you a technical edge. We require the final reviewed form to fulfill your order and issue a warranty.

  • All units can be provided with live Pump Pad Drives, with pumps driven from either side of the tower.
  • Drives accept up to 480 hp or 300 hp on each drive gear. Gears are driven at a 1.0:1.0 ratio from the engine speed.
  • Charge pumps for engaging the hydraulic clutch can be provided by Twin Disc or the customer.
  • Pump tower can be eliminated if not required, but the PTO package length is unchanged.

For more detail on Mechanical & Hydraulic PTO series, please visit

Power-Shift Transmission

Essential in a High-Stakes Industry

Choose Twin Disc automatic transmission systems for heavy-duty stationary and vehicular applications. Get the job done with precise propulsion control and optional power-splitting. Promote high productivity and low downtime with robust construction, advanced technologies and easy, reliable operation. Custom solutions solve your transmission challenges—and Twin Disc service ensures continuing success.

For more details on Power-shift transmission series please visit

Pump Drive

Quality Is Standard

Meet hydraulic system needs with industrial pump drives in a wide variety of gear ratios, including speed-increasing and speed-reducing configurations. Modular design choices include a flexible coupling, rubber block drive, or clutch to match your SAE engine flywheel dimensions. Independent mounting is an option, direct or with a clutch. Twin Disc also offers standard and specialized SAE and DIN adaptor kits.

Pump drive model numbers indicate the number of pump pads, using the first numeral after the “AM” designation. Models AM 232, AM 365, AM 450 and AM 480 have additional pump pads on the input side.

  • Cast iron housings
  • Case hardened and ground spur gears (shaved gears for AM 216 through AM 320)
  • Ball bearings
  • Case hardened shafts
  • Viton seals on input shaft
  • Output rotation opposite the direction of input rotation
  • Gear ratios identical on all outputs
  • Maximum input torque based on theoretically unlimited gear life and a minimum L10 bearing life of 10,000 hours

For more detail on Pump Drive series, please visit

Hydraulic Torque Converters

More Efficient Operation, More Accurate Control

Let Twin Disc torque converters help your engines operate in the most efficient speed range, producing rated horsepower regardless of load demand. By transmitting torque through fluid mass in motion, Twin Disc converters eliminate mechanical connections and reduce or eliminate the need for shifting, clutching and declutching.

Twin Disc custom solutions draw on extensive applications expertise and a wide array of single-stage stationary and rotating converters, three-stage converters, and numerous types, sizes, capacities, and input/output combinations:

  • Sumpless Single-Stage Converters with PTO Drives
  • Single-Stage-Rotating Housing
  • “Stripped” Units for OEM In-line Design
  • Twin Disc Single-Stage Torque Converter Renewal Parts Kits
  • Industrial Single-Stage Torque Converters – Stationary Housing
  • Type Four Hydraulic Torque Converters
  • Three-Stage Hydraulic Torque Converters
  • Model F Units
  • Model CF Units
  • Model CO and FO Units
  • Input and Output Combinations – 3-Stage Converters