Dayton 3KR12 Beam Clamp 4000 lb Vertical Lift Steel

Dayton 3KR12 Beam Clamp 4000 lb Vertical Lift

The Dayton 3KR12 is a steel beam clamp designed for vertical lifting tasks in industrial and construction settings. It attaches to flat beam flanges ranging from 3 inches to 8 5/8 inches wide and up to 3/4 inch thick. The clamp suits riggers and maintenance crews who need a secure anchor point for hoists or pullers. Its shaft attachment provides a fixed connection for straight-line lifting.

Upgrade from chain wraps and temporary clamps

This clamp replaces improvised rigging such as chain wraps, C-clamps or temporary brackets that can slip or damage flange edges. The jump is worth it when loads approach the 4000 lb working load limit and a rated, repeatable connection is required. It eliminates the need to re-check makeshift setups on every lift. The ANSI/ASME B 30.20 rating confirms compliance for overhead handling.

4000 lb capacity with 10 1/4 in maximum jaw opening

The clamp comfortably handles beams within the stated width and thickness range up to the full 4000 lb limit. It runs out when beam flanges exceed 8 5/8 inches wide or 3/4 inch thick, or when the jaw must open beyond 10 1/4 inches. It is not suited for angled lifts, beam profiles other than flat flanges, or loads exceeding the rated limit.