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News

New generation cutting rule eliminates downtime

Sandvik Coromant UK : 31 January, 2001  (Company News)
A new generation of deep cutting rules developed by Sandvik Steel and manufactured by UK based Sandvik Saxon has eliminated blade replacement downtime for leading thermoformer and plastic packaging producer, EP Packaging.
EP Packaging, based in Wrexham produces packaging in a range of different plastics with highly developed vacuum and pressure forming techniques and is a major supplier of plastic packaging to the food industry.

After forming, individual food containers are cut to size, either as an integrated operation on the pressure forming machines or as a separate cutting operation after vacuum forming. Cutting, typically, 300/350 micron film with a 25 tons or more load, at a film temperature of 30-40C and a cutting blade temperature of 90-100C on pressure forming machines, tends to blunt the cutting blade, even if the blade hardness is increased.

It was, therefore, standard practice at EP Packaging to change cutting blades for each production run. It was also, often necessary to change blades during a run with the resultant downtime and loss of production.

Extensive trials with Sandvik Saxon's new generation, edge hardened, cutting rule product called - Dieflex Hard High Rule - have shown that it combines sharpness with high wear resistance i.e. long life. The new cutting blades can maintain cutting quality over several production runs and shifts.

Another benefit of Dieflex Hard High Rule is that Sandvik has balanced rule hardness with flexibility and bendability. As a result, the rules also meet EP Packaging's requirements for cutting formes for packaging designs with tight radius bends or corners without affecting the other key properties.

Dieflex Hard High Rule is available up to 100mm high. Produced with shaved or ground edges and in all standard edge bevel configurations, it can be supplied in 3pt and 4pt thickness, in lengths up to 2 metres or in coils.



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