Spring suspension of the blade holder
Robust precision part: NOCK blade holder
When deep skinning with sharp blade, the blade holder can be opened so that it is possible to take off almost the whole layer of fat. The blade gap can be adjusted infinitely and sensitively with the thickness adjusting lever, also during operation.
So with some fish species it is possible to increase the quality of the fillets and the price to be gained like this, so that the higher loss of weight can be balanced above.
Deep skinning is only possible to a limited exent on open top fish skinning machines.
When pulling-off, the skin is divided from the fillet with the blunt edge of the blade, so that the silver mirror stays on the fillet („silver skinning“). Here the blade is put into the blade holder with the blunt edge outside and the blade holder is completely closed („tight“). So, compared to the thin skinning with sharp blade, the yield can be further increased and the desired performance of the fillets with the silver mirror is achieved for some species of fish.
This method of skinning is not possible with the freeze drum skinning machines TFE.