Increasingly high clamping pressures, with larger throat depths and wider openings. These are the demands that original BESSEY high-performance clamps need to fulfil on a daily basis. Used in steel and boiler construction, shipbuilding and automotive engineering. Also in heavy timber construction, laminated wood beam construction and carpentry. In other words, wherever sturdy or heavy parts need to be clamped very securely, with a very high clamping pressure. Developed on the basis of the tried-and-tested BESSEY all-steel screw clamp, the original BESSEY high-performance clamps fulfil all requirements with panache... again and again! The high-performance clamp. Your benefits at a glance: Extremely sturdy.Fixed bracket and pressure plate are produced and tempered from a single piece, thus very torsion-resistant. This guarantees you maximum tensile strength and sturdiness. Special tilting pressure plate.The heat-resistant pressure plate is replaceable and can be tilted up to 35° so it can even clamp on angled or sloping surfaces. Tempered spindle. The tempered spindle is particularly sturdy and wear-resistant. This considerably increases its durability. Sturdy tommy bar.The sturdy tommy bar has special rounded hand-friendly ends, as well as a hexagonal bolt. This allows powerful, controlled clamping.The Bessey SG30M has the following: Clamping force up to 12,000NTightening torque: 40NmOpening 300mmThroat depth 140mmRail 34 x 13mmWeight 3.0Kg