CCS-Certified Marine Electric Motors for Deck Crane Modernization

Project Overview

An 82,000 DWT bulk carrier undergoing a mid-life crane modernization at a Chinese repair yard needed replacement electric motors for all four deck cranes. The existing motors had reached end-of-life after 15 years of service, with insulation degradation making continued operation unreliable.

Challenge

• Four different motor ratings required (hoist, luff, slew, travel) — 45kW to 90kW range
• CCS Type Approval mandatory for all motors
• IP56 protection rating for exposed deck service
• Compatibility with existing crane control panels (voltage, frequency, mounting dimensions)

Our Solution

Hicool supplied 4 sets (16 motors total) of YD-series marine-grade electric motors:

• 4× Hoist Motors — 90 kW, YD280M, IP56, IC01 cooling, CCS Type Approved
• 4× Luff Motors — 55 kW, YD250M, IP56, F-class insulation
• 4× Slew Motors — 45 kW, YD225S, IP56, with built-in brake
• 4× Travel Motors — 45 kW, YD225S, IP56, foot-mounted

Each motor was supplied with CCS individual test certificate, dimensional verification report, and wiring diagram matching the crane's existing terminal box configuration.

Results

• All 16 motors delivered in 25 days — the yard completed crane modernization within the scheduled dry period
• CCS surveyor approved all installations without comment
• Crane load tests (SWL + 25% overload) passed for all four cranes
• Cost saving of approximately 40% compared to the original European motor brand

Key Takeaway

Marine motor replacement for deck cranes requires precise specification matching — not just power rating, but mounting dimensions, protection class, and control system compatibility. Hicool's technical review ensures the replacement motors integrate seamlessly with existing crane systems.