FAQs

Should our shop buy a manual, electric, or hydraulic corner rounder?

Choose a manual machine for occasional short runs. Electric models reduce operator fatigue on recurring card, cover, and laminated work. Hydraulic equipment handles thick lifts and sustained bindery production where clamping pressure and consistent cuts directly affect throughput.

How much corner-rounding capacity do we need?

Size the machine for the thickest, densest production stack rather than sheet count alone. A 600-sheet rating for 20 lb. paper does not translate to 600 laminated cards. Allow working headroom for coated stocks, synthetic sheets, and consistent cuts through the full lift.

Which corner radius is used for business cards and printed collateral?

A 1/4-inch radius is common for business cards, postcards, and ID products. A 1/8-inch radius gives a subtler corner, while 3/8-inch and larger dies produce a more visible curve on menus, covers, and presentation materials. Confirm the client's finished specification before choosing tooling.

Can a corner rounder cut laminated, synthetic, or plastic stock?

Yes, provided the machine and die are rated for the substrate. PVC, polypropylene, polyester, laminated sheets, and dense synthetic stocks put more load on the cutting edge than paper. Test the complete printed and laminated construction before approving the production method.

What causes different corner shapes at the top and bottom of a stack?

Typical causes include an excessive lift, stock movement, weak clamping, incorrect lower-die adjustment, or a worn cutting edge. Reduce the lift and inspect the die first. If the cut improves, the original stack exceeded the machine's practical capacity for that substrate.

How do we prevent laminate delamination during corner rounding?

Use a sharp die, reduce the stack height, and make sure the laminate has bonded and cooled before cutting. A worn edge may pull the film instead of shearing it. An excessive lift can compress the stack and leave rough or separated edges.

What should we check before replacing an existing corner rounder?

Record substrate types, maximum lift, daily cycles, installed radii, electrical service, table space, and recurring cut problems. Print & Finishing Solutions can match those production details to suitable equipment and provide the parts and service needed after installation.

This table is optimized to compare operating method, rated lift capacity, tooling range, and the production role of corner rounders available from Print & Finishing Solutions.