External thread reform tool is “the first of its kind”

Silbertool external thread reformer tools promises to offer a more durable repair solution than cut threads

External thread reform tool is “the first of its kind”
Silbertool external thread reformer tool from Sykes-Pickavant.

Sykes-Pickavant has said that its Silbertool external thread reformer tool range is an innovative solution for reforming external threads without cutting.

A spokesperson said: “For people working with mechanical components, a damaged thread can often result in the whole component requiring replacement; this solution allows original parts to be reused rather than changed.

“There are many thread repair tools currently on the market; however Sykes-Pickavant’s product is the first of its kind, using non-cutting external thread reform technology to repair the thread by forming it back to its original shape.

“Existing repair techniques including die stocks, thread files and special thread tools all weaken threads by removing material that can otherwise be used to reform the original shape.”

Sykes-Pickavant say threads which are repaired by cutting are considerably weaker than their rolled counterparts and present severe safety issues.

Axle studs repaired by cutting can void the manufacturer’s vehicle warranty as they can break under torque so the existing Silbertool procedure was adapted to repair axles and axle studs to guarantee safety when using the reformed component.

Official partners MAN instruct all of their dealers to repair the threads of axles and axle studs only with the 01431100 M50-M110 Silbertool thread reformer and Mercedes Benz also started using the range for its own service vehicles after internal quality approval.

The spokesperson added: “The strength of a repaired thread is determined by the ‘fibre flow’ of the material; when a thread is cut, the structure is weakened as the cut is made through the flow whereas a rolled thread diverts the fibre flow, keeping it intact and ensuring a stronger thread.

“For all threaded components that require high force durability, a rolled reform technique must be used.

“Another factor that determines the strength of a repaired thread is the surface finish.

“Cutting threads can leave the surface coarse which increases the chance of corrosion however rolling threads leaves them with a burnished finish which has a very low tendency of corroding, vastly improving the lifespan of the component.”

For further information, select ‘more details’ below or go to the latest Sykes-Pickavant promotional brochure here.

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