Industrial Rigging Services in Bangalore

The sling angle is the angle between a sling leg and the horizontal. When this angle decreases (slings become more horizontal), the tension in each sling increases dramatically. At 60° from horizontal, each sling carries 115% of its share of the load. At 30°, that rises to 200%. At angles below 30°, sling loads can exceed the working load limit even on a properly rated sling. This is why rigging with steep angles (close to vertical) is always preferred, and why spreader beams are used to achieve steeper angles on wide loads.

A spreader beam is needed when the attachment points on the load are too far apart to allow a safe sling angle with a single hook. It is also used when the load surface must not be marred by sling contact (e.g., painted machine covers), or when the load is so long that multi-point lifting is required to prevent bending. Common uses include lifting long machine beds, generators, and transformer tanks.

Yes. For lifts above 10 tonnes, lifts involving two cranes (tandem lifts), or lifts in structural environments where the crane outrigger loads must be verified against the floor slab, we prepare a written engineered lift plan. The plan documents the load data, rigging configuration, crane positions, and safety requirements. This is increasingly required by factories with HSE management systems and by insurance underwriters for high-value lifts.

Yes. We conduct periodic rigging inspections for factory in-house rigging equipment—slings, shackles, hooks, and chain blocks. We document the condition, working load limit markings, and any items that should be removed from service. This is valuable for factories undergoing ISO 45001 audits or HSPCB inspections where rigging equipment documentation is reviewed.