| Single-Girder Top-Running Crane |
1–20 metric tons |
Approximately 6–30 m span |
General fabrication, maintenance, machinery handling, and material loading |
Upper and lower travel limits, overload protection, emergency stop, hook safety latch, and bumpers |
Pendant push-button station or radio remote; variable-speed travel is available |
Requires runway beams, end trucks, electrical power, and verified building support points |
A practical choice when lifting loads are moderate and headroom is adequate |
| Double-Girder Top-Running Crane |
10–100 metric tons or more |
Approximately 10–35 m span |
Heavy machinery, steel processing, molds, dies, and large assemblies |
Load-limiting device, redundant hoist brakes, travel limits, anti-collision system, emergency stop, and warning alarm |
Cab control, radio remote, or pendant control; dual-speed or variable-frequency drives |
Needs stronger runway structures, greater headroom planning, and a detailed foundation or column assessment |
Best for high-capacity or high-duty-cycle lifting where structural strength is available |
| Underhung Crane |
Typically 1–10 metric tons |
Approximately 6–20 m span |
Light-duty production areas, workshops, and facilities with limited floor obstruction |
Overload protection, hoist upper limit, travel limits, emergency stop, and hook latch |
Pendant or radio remote; low-speed positioning is useful for precision work |
Must attach to a suitable roof structure; runway load distribution and deflection require engineering review |
Useful where an independent runway is difficult to install, but building structure is critical |
| Gantry Crane |
1–50 metric tons |
Approximately 5–30 m span; travel length depends on runway |
Outdoor yards, loading areas, fabrication bays, and buildings without adequate roof support |
Rail clamps or storm locks where required, overload protection, travel limits, emergency stop, and anti-collision controls |
Ground pendant, radio remote, or cab control; synchronized leg travel may be required |
Requires level ground rails or a prepared runway, adequate drainage, wind assessment, and power supply |
A strong option when the existing building cannot safely support a suspended crane system |
| Portable or Freestanding Workstation Crane |
Typically 0.125–2 metric tons |
Usually 2–8 m span or boom reach |
Work cells, tool handling, engine servicing, and repetitive localized lifting |
Rated-capacity marking, overload protection, hook latch, mechanical stops, and stable base or anchorage |
Manual push-pull, electric pendant, or radio remote depending on capacity |
Needs a level floor, adequate slab strength, clear operating space, and anchoring when specified |
Suitable for low-capacity lifting when full-building runway coverage is unnecessary |
| Jib Crane |
Typically 0.125–5 metric tons |
Approximately 2–8 m boom reach; rotation commonly 180°–360° |
Machine loading, assembly stations, repair benches, and point-of-use lifting |
Rated-capacity marking, boom stops, overload protection, hoist limits, emergency stop, and hook latch |
Manual rotation with electric hoist, pendant control, or radio remote |
Wall, floor, or column mounting requires verified concrete, steel, anchorage, and foundation capacity |
Efficient for a defined lifting zone but does not provide full-bay coverage |