Basic Design
LDT21/24/32 is a U-style hydrostatic transmission with a Z-shaft configuration, including a closed circuit
variable displacement piston pump with DDC (Direct displacement control) and a fixed motor.
LDT21/24/32 is specially designed with optimized performance, size, and cost, in order to fulfill the
demand of the mobile applications marketplace. This document provides the detailed specifications and
features for LDT21/24/32.
Key Features
•
Easy to use design as a complete hydrostatic transmission package for compact utility tractors
ranging from 22 hp to 40 hp
•
Compact design
•
U-style layout in one housing with Z-shaft configuration
•
Requires external charge flow
•
LDT21/24 feature 85mm between pump and motor shaft centers, identical to BDU21 and LDU20.
LDT32 shaft center distance is 105mm
•
Best in class efficiency, utilizing female piston and male slipper design; overall efficiency of
approximately 80% is possible
•
Improved life kit, higher duty cycle capability while providing the most compact design in this class of
hydrostatic transmission
•
Low trunnion operating force
•
Serviced by Danfoss' global network
Typical Applications
•
Compact utility tractor
LDT Schematics
LDT21 hydraulic schematic
Service Manual
LDT 21/24/32 Closed Circuit Axial Piston Transmission
General Description
©
Danfoss | June 2022
AX417167456877en-000101 | 7
