
IYIY Hydraulic Transmission Drives Series (IY2.5 – IY79, IY61111)
Hydraulic Transmissions INI IY

IY hydraulic transmission drives combine an INM radial piston motor, planetary gearbox, disc brake (or none) and multi-function distributor in one unit. 12 sizes by gearbox module, IY2.5 to IY79: total displacement 430–77,660 cc/rev, rated torque 843–200,231 N·m at 16–20 MPa, speed up to 100 rpm; special IY61111 version delivers 550,000 N·m at 1 rpm. The output shaft carries high radial and axial loads; 8 shaft options (splined, cylindrical, flange, expansion sleeve). Allowable back pressure up to 10 MPa.
Specifications
- Sizes
- 12 (IY2.5 – IY79) + IY61111
- Rated torque
- 843–200,231 N·m (16/20 MPa); IY61111 — 550,000 N·m
- Total displacement
- 430–77,660 cc/rev
- Speed
- 0–100 rpm
- Hydraulic motor
- radial piston INM05–INM6
- Brake
- Z-type disc brake or none
- Output shaft
- 8 options: splined, cylindrical, flange, expansion sleeve
- Back pressure / case pressure
- up to 10 MPa / up to 0.1 MPa
Applications
- Winch and drum drives
- Mining and coal machinery
- Shipboard and deck equipment
- Oilfield and metallurgical equipment
- Railway and road machinery
We will select the right size for your task and prepare a quotation under a direct SDS contract.







