Wear- and Shim Plates

Optimal distribution of the closing pressure

A stable, permanently high-quality production of plastic parts is also a matter of the closing pressure. In order to avoid burrs, in the cavity area, the closing pressure is often at its maximum. Hardened wear plates are used to optimize the redistribution of the closing pressure across the entire tool.


All wear- and shim plates are made of through-hardened steel 1.2842 with a nominal hardness of ~ 58 HRC. Both round and square versions are available with an allowance of 0.2 mm. Thanks to this grinding allowance, slight differences in height can be compensated and the mould halves can be precisely adjusted.


With a wide range of standardized and ready-to-use wear- and shim plates, KNARR offers solutions for a variety of installation options. An example for our solution-oriented product policy could be the wear plate with a bore for the recoil pin, which was designed in close cooperation with our customer. Undoubtedly, the wear plate with lifting-corners is one of the highlights in the program: the sophisticated and effective positioning guarantees maximum space utilization of ​​the plate simultaneously ensuring exact tool parallelism across the entire parting line.



51052 – Wear-/ shim plate

b = 20 – 100 mm
l = 32 – 200 mm
s = 8,2 mm ; 10,2 mm ; 12,2 mm


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51053 – Wear-/ shim plate with bore for recoil pin

b = 39,5 – 59,5 mm
l = 70 – 90 mm
s = 12,2 mm


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51050 – Wear-/ shim plate

b = 55 mm ; 100 mm
l = 100 mm ; 200 mm
s = 16,2 mm



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51058 – Wear-/ shim plate

Ø = 26 – 80 mm
s = 10,2 mm ; 12,2 mm ; 16,2 mm




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51051 – Wear-/ shim plate, round

Ø = 20 – 80 mm
s = 8,2 mm ; 10,2 mm ; 12,2 mm



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51054 – Support disc

Ø = 20 – 60 mm
s = 4 – 6 mm




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51059 – Wear-/ shim plate

Ø = 20 – 80 mm
s = 10,2 mm ; 12,2 mm ; 16,2 mm



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