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The electric double-rail engine room crane is a special overhead lifting machine designed for ship engine rooms, power plants, industrial workshops, and narrow equipment rooms. Adopting a double-girder and double-rail structure, it provides higher rigidity, stability, and load-bearing capacity than single-rail cranes. Driven by full-electric hoisting and traveling systems, it is mainly used for lifting, handling, assembling, and maintaining large engines, gearboxes, generators, pumps, and other heavy equipment in confined spaces. With compact structure, low headroom design, and reliable safety performance, it has become essential supporting equipment for ship engineering and mechanical maintenance.
Classification
By structural type: Electric double-rail overhead crane, electric double-rail underslung crane
By lifting capacity: Light-duty (1t–10t), medium-duty (10t–32t), heavy-duty (32t–80t)
By control mode: Pendant control, wireless remote control, cabin integrated control
By working environment: Standard marine engine room crane, anti-corrosion type, explosion-proof type
Applications
Lifting and maintenance of main engines and auxiliary engines in the ship's engine rooms
Assembly and handling of generators, turbines, and gearboxes in power stations
Equipment installation and overhaul in mechanical workshops and manufacturing plants
Material handling in narrow spaces, such as underground pump rooms and substations
Equipment maintenance in offshore platforms and special marine working areas
The electric double-rail engine room crane runs stably on two parallel I-beams or steel rails. The end carriages drive the whole crane to move longitudinally along the rails. The electric hoist or trolley runs transversely on the double-girder bridge. The lifting motor drives the drum to wind or unwind the steel wire rope, realizing vertical lifting and lowering of loads. The electrical control system realizes coordinated control of traveling, transverse moving, and hoisting, with built-in limit switches, phase sequence protection, overload protection, and emergency stop functions to ensure safe and stable operation under narrow and complex working conditions.
Double-rail high rigidity: Stable structure, strong anti-sway performance, suitable for heavy-load precision lifting.
Compact design: Optimized height and size, suitable for narrow engine rooms and low-headroom spaces.
Smooth and precise movement: Stable starting and braking, micro-speed adjustable, convenient for equipment assembly.
High safety: Equipped with overload protection, upper and lower limit, anti-collision, and emergency stop devices.
Low noise & energy saving: Full electric drive, clean energy, low noise, suitable for closed working spaces.
Marine & industrial adaptability: Anti-corrosion, moisture-proof, and dust-proof design, long service life.
Flexible control: Supports wired handle and wireless remote control, easy to operate in narrow spaces.
Easy installation & maintenance: Modular structure, convenient for installation, commissioning, and daily maintenance.
| Parameter | Specification Range |
|---|---|
| Rated Lifting Capacity | 1t, 2t, 3t, 5t, 10t, 16t, 20t, 32t, 50t |
| Span Length | 2m–12m |
| Lifting Height | 3m–12m |
| Hoisting Speed | 0.8–8 m/min |
| Longitudinal Traveling Speed | 5–20 m/min |
| Transverse Trolley Speed | 2–10 m/min |
| Power Supply | 380V 50Hz 3-phase / 440V 60Hz |
| Control Voltage | 24V–36V safety low voltage |
| Protection Grade | IP54–IP56 |
| Working Environment | -20℃ ~ +60℃, suitable for humidity and salt spray |
Customized parameters, including span, lifting height, speed, explosion-proof, and anti-corrosion levels, are available based on actual working conditions.
