The photograph above shows a specially constructed turbine for the Laempe LM92 sand mixer. The underside of the blades are protected by a special tool steel shoes, one of  which is shown in the foreground. Each shoe is held in position, from above by two countersunk socket screws, which are then covered by three segments of the new Wear-Tect-It wear strip. Each segment is bolted on to the blades from behind, as can be seen in the photograph.

When replacement becomes necessary all the parts can be removed and replaced quickly.

The unit shown is being tested at William Cooke George Blaire Foundry Ltd., near Bishop Aukland (UK) where they are using it for the Ashland process. They have found that their existing turbines had to be repaired every fortnight, but at a 8 week inspection the turbine looked as good as when it was fitted. Early signs are that it will run for several months before the shoes and the strips have to be replaced.