Troubleshooting Guide

Guidelines for positioning the offset perforating rules should be clearly placed on the plates. Before beginning, make sure you can position the rule in precise accordance with the artwork. Be certain you also have the appropriate type and size of rule to complete the job correctly.

Paper is sticking to teeth on the perf

Possible Solution - Grippers need to be adjusted or replaced. Lay a piece of clear tape over the perf. Possibly apply a silicone spray to the rule teeth.

Perf is not perforating as desired

Possible Solution - Add pressure or change rule to a special high product.

Perf is slitting instead of perforating the paper

Possible Solution - Reduce pressure, try changing to a special low product, or overlay the rule with a piece of clear film tape.

Rule is not perforating at all

Possible Solution - Use a good hard 3- to 4-ply non-compressible blanket. Check the pressure.Reverse or use back side of blanket if possible. Does this particular press have springloaded cylinders designed to release under pressure as a safety precaution?

Teeth are bending or breaking off

Possible Solution - Reduce pressure and make sure the correct height of perf for the stock is being used.

Perforation is straying from guidelines

Possible Solution - Reduce pressure. Try using a 1/2” to 3/4” masking tape to overlay the perf (especially in high-speed web operations that generate heat).

Indentation or shoulder mark in paper is appearing adjacent to the perforated line

Possible Solution - Back off the pressure. Try a center-mounted rule to distribute pressure evenly to both sides of rule.

None of the above

Possible Solution - Call our toll-free number: 1-800-537-2514 for experienced technical assistance.


Need some expert advice?

With over 50 years of experience in Inline perforating, scoring and die cutting we can answer your questions on products or systems to insure your operation is performing at maximum efficiencies.  One of our technical representatives is always available to provide you the information you need to make the best decision on Inline finishing for your operation.