It is designed for rough, coarse, embossed and uneven materials such as sawmill timber, rough-sawn lumber, stone slabs, brick pavers, diamond plate and textured construction products.

Using the full nominal 150mm circular area, the calculated theoretical lifting force is approximately 141.4kg at 80% vacuum or 322.1lb at 24"Hg. This is not the safe working load.

A 150mm diameter equals 15cm and has a nominal circular area of approximately 176.71cm². At 80% vacuum, the theoretical force is 176.71 × 0.8, which equals approximately 141.4kg.

The 150mm diameter equals approximately 5.906 inches, producing a nominal area of 27.39 square inches. At 24"Hg, the effective pressure is approximately 11.76 PSI. Therefore, 27.39 × 11.76 provides a theoretical force of approximately 322.1lb.

The foam seal is intended primarily to conform to rough and uneven surfaces. Some porous materials may also be handled, but the vacuum source must provide enough flow to compensate for leakage. Application testing is required.

Actual force may be reduced by the internal vacuum opening, workpiece porosity, surface leakage, uneven compression, contamination, acceleration, side loading, vacuum losses and variations in operating altitude.

Yes. The stated figures are theoretical. An appropriate engineering safety factor must be applied based on load orientation, acceleration, surface condition, leakage, vacuum level and the risk of injury or product damage.

This product is an EPDM foam replacement seal. The compatible vacuum cup body, backing plate, fitting or complete vacuum assembly may be supplied separately unless specifically included in the product listing.