Hydrostatic Transmission For Ag, Turf, CUTs

Posted on March 15, 2012

Sauer-Danfoss has introduced the LDU20 u-style transmission, a hydrostatic transmission package for turf care machines, compact utility tractors up to 22 kW (30 hp) and agricultural vehicles. The design of the LDU20 integrates a closed circuit variable displacement piston pump with direct displacement control (DDC) and a fixed motor.

“The LDU20 is ideal for applications such as zero-turn mowers, golf equipment, compact and sub-compact tractors, and specialty agricultural machines,” said Toshihiro Naruse, Product Marketing Manager for Sauer-Danfoss.

The LDU20 features the closed circuit variable displacement piston pump and fixed motor contained in a single housing with a U-style layout. At 170 mm long, 180 mm wide and 240 mm high, the LDU20 is the most compact hydrostatic transmission package in its class, Sauer-Danfoss claimed. The LDU20 has a shaft centerline of 85 mm.

Developed for vehicles with an external charge source, the LDU20 attaches directly to the housing of a customer’s transmission, eliminating hosing and piping for. The utilization of a common charge pump for flow to steering or work function has the added benefit of reducing overall vehicle cost.