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Underslung cranes hang from the bottom flange of the runway beams instead of riding on top — saving headroom and letting bays share runways. Choose the single girder for lighter, economical lifting, or the double girder for higher capacity and span.
Lightweight single-girder crane suspended from the runway’s bottom flange — excellent headroom use for light-to-medium loads.
Best for: low-roof bays, workshops and lines where you want close-to-the-roof lifting and the ability to span between columns.
Heavy-duty underslung crane on two girders — higher capacity and longer spans while keeping the headroom advantage.
Best for: heavier underslung handling and longer spans where you still need to suspend from the roof structure.
The differences that actually drive the decision — capacity, span, duty and cost.
| Single Girder | Double Girder | |
|---|---|---|
| Lifting capacity | Up to ~10 T | Up to ~25 T |
| Span | Short–moderate | Moderate–long |
| Headroom use | Excellent (roof-hung) | Excellent (roof-hung) |
| Duty / service class | Light–medium | Medium–heavy |
| Dead weight & cost | Lighter → lower cost | Heavier → higher cost |
| Runway sharing | Yes | Yes |
| Design standards | IS 3177, IS 807 | IS 3177, IS 807 |
| Relative price | Lower — economical | Higher — heavy-duty |
Capacity, span and duty class are typical — final figures are confirmed per your application on the product datasheet.
Run your requirement against these. If most points fall in one column, that’s your pick.
The economical fit
The heavy-duty fit
Single or double girder, the engineering underneath is the same standard — designed around safety, uptime and your exact bay.
Designed to IS-3177 & IS-807 for your exact duty class, with a defined factor of safety on every member.
Overload limiter, hoist limit switches and end-travel stops protect the load, the crane and the people under it.
Variable-frequency drives give soft start/stop and anti-sway travel for precise, safe positioning.
Hung from the runway’s bottom flange to save headroom and let adjacent bays share runway columns.
Custom span, lift, capacity and power supply — single or double girder, pendant or radio control.
In-house erection and a responsive service team across India, so an expansion never means downtime.
A starting point by sector — final selection always comes down to your load, span and duty cycle.
Close-to-roof lifting where headroom is tight.
Often single girderHigher loads and longer spans, still roof-hung.
Usually double girderLight-to-medium handling along the line.
Often single girderHeavier equipment handling in tall structures.
Usually double girderAdjacent bays sharing runway columns.
Either — by loadLong-travel handling across spans.
Usually double girderBoth configurations are built in-house to IS-3177 & IS-807 and backed by a pan-India service team — the same standard behind every LOADMATE crane.
Engineered for precision, built to last
An underslung (under-running) crane travels on the bottom flange of runway beams hung from the roof structure — the answer for low-headroom buildings, giving hook coverage right to the walls in capacities of 0.5 to 10 tonnes.
Choose underslung when headroom is tight or columns cannot take runway loads; choose a top-running EOT crane for higher capacities and hook heights. Roof structure capacity decides feasibility.
It hangs from the bottom flange of the runway beams instead of running on top, which saves headroom and lets neighbouring bays share the same runway columns.
Single girder suits lighter loads and shorter spans economically; double girder handles higher capacity and longer spans. We confirm from your load and span.
Often yes — underslung cranes are flexible with runway layouts. Share your runway and building drawing and we’ll check headroom and flange capacity.
Yes. Cranes are designed to IS-3177 / IS-807, tested before dispatch and supplied with certificates.
Share your load, span and headroom and our engineers will recommend the right underslung crane — single or double girder, sized for your bay.
