A port crane swings loads over ships, trucks, and people. The slew drive must accelerate smoothly, position precisely, and hold absolutely when hydraulics shut down — all day, in sea air.

Motor roles in this machine

• ZCM3 — slew drive: Hydraulic motor, planetary gearbox, and spring-applied brake sealed in one unit — smooth 360° rotation with automatic holding at zero pressure. ZCM reference →
• One assembly, one warranty: No motor-gearbox matching or alignment on the pedestal — the integrated unit bolts to the slew ring pinion directly.

For sizing details or datasheets, contact our engineers.