PLANING, MOULDING AND GROOVING SYSTEM Optimum solution for finishing The tooling range for planing, moulding and grooving includes hydroblocks, fingerjoint cutters and helical planer heads. It also includes Quickset profiling tools, which are de- signed for high speed moulding operations. For finishing on moulding machines, planing machines and thicknessing machines, the Tersa system is the perfect solution. The decisive advantage of the Tersa system is the user friendliness. Knives can be mounted in the planing head without the use of screws or keys, and they are fixed in the right position by means of a specially made wedge. The centrifugal force presses the wedge outward towards the knife. To replace the knife, the wedge must be pushed back, and the knives can be replaced without the use of any other tools. Knives for the Tersa system are available in 7 different grades: Knife quality Description Application HW HW 10° negative HS HS M42+ HS coated Chrome Chrome negative Standard HW knife in Micrograin quality HW knife in Micrograin quality with new geometry. Standard HS knife HS knife with same geometry as standard HW knives and in a better HS quality. All of the above mentioned HS knives can be supplied with a special coating. Standard Chrome knife, which is the cheaper alternative to HS and HW. Standard Chrom-knife, which for a surcharge can get a geometry like HS - and HW - Negative For hardwoods and abrasive material For American oak and other types of hardwood For softwood For softwood For the same types of wood as HS and for abrasive material as well as wood with gluelines. For softwood For birch, spruce and pine Only original Tersa knives are supplied by Unimerco, as the use of non-original knives can damage the planer heads. 20
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