Free Fall Winches .

IYJ-L hydraulic winches with free-fall function: planetary gearbox, hydraulic motor, wet multi-disc brake, valve blocks (counterbalance and shuttle valves), drum, frame and a hydraulically controlled clutch (INI patent) on the last gearbox stage that disengages the drum from the drive. A two-speed variable motor gives two speeds; an axial piston motor raises pressure and power. Line pull 6–225 kN, rope speed up to 90 m/min, rope 8–32 mm, system pressure 10–30 MPa, clutch opening pressure 5–8.5 MPa. Also part of INI's marine programme (Marine Machinery catalogue).