Size Reduction of fresh Pork Rinds and Split

Cow Hides with the Knife Mill, Type PS-I

In the gelatin industry pork rinds and split cowhide must be size reduced in order to feed them into alkaline or acid treatments. For both processes the material must be size reduced into palm sized pieces with a minimum of fines. The pieces should not be too big and smoothly cut so that the chemicals can easily penetrate the skins through the cut edges. The ORIGINAL PALLMANN Knife Mill, type PS-I has been successful worldwide, in the leading gelatin factories, due to its outstanding cutting ability and product quality.  

Decisive advantages

• Favorable treatment times in the acid and alkaline solution baths due to 

  • Good, evenly cut pieces and

  • Smooth, not torn, cut edges

• Low waste water load due to low percentage of fines in the end product

• Easy access for maintenance and wear part exchange

• Compact, space saving design

• Economical, branch-specific solutions

Method of Operation

A gripper transports the feed material into the storage bin. From there the material is evenly dosed either via screws or conveyor belts onto a second belt conveyor and then into the mill. A metal detector is integrated into the belt conveyor in order to protect the mill; metal pieces and other foreign objects can be removed by hand.

Product discharge out of the knife mill is straight down into a discharge chute and is then transported via pumps or screws to further processing.