Press tools accessories are precision components used inside stamping and press-die systems to cut, pierce, guide, support, return, strip or cushion metal parts and tooling. The category includes cutting components such as punches, resilient polyurethane elements and guiding components such as ball cages, depending on the die design.

The live category page lists three main product groups: Piercing Punches, Polyurethane Elastomers and Ball Cage. It also mentions many punch types and ball-cage materials in the opening copy. Buyers should use the child product pages or drawings for product-specific dimensions, grades, hardness, load and commercial terms.

Piercing is a shearing operation in which a punch enters a die opening to create a hole in sheet or plate. The removed slug is normally scrap, while the remaining sheet becomes the required part. Punch material, die clearance, alignment, stripping and slug control affect hole quality and tool life.

Start with the press operation, sheet material and thickness, part geometry, required tolerance, production volume, press capacity, stroke, guiding system, stripper design, expected tool life and maintenance plan. Then select each punch, elastomer, guide component and spring from verified drawings and load or clearance data.

The category and Piercing Punches pages mention HSS block punches, step punches, D-shape punches, square punches, double-step punches, metal-hole punches, pilot punches, carbide punches, pin punches, black-head annealed punches and customised piercing punches. Final availability and dimensions require confirmation.

A pilot punch enters a previously pierced hole to locate and register the strip accurately before the next operation. It is common in progressive dies where pitch control is critical. Tip shape, lead, diameter, material, mounting and clearance must match the strip and die sequence.

A step punch has two or more controlled diameters or profiles along its working section. It may provide staged cutting, relief, guidance or a special formed hole geometry. The step lengths, diameters, corner radii and transition geometry should be defined on a dimensioned drawing.

Clearance is the space between the punch cutting edge and the die opening. It must suit the sheet material, thickness and strength. Correct clearance supports clean fracture, manageable burr, lower stripping force and longer tool life. One fixed percentage is not suitable for every material or application.

After cutting, the sheet grips the punch and must be stripped off during withdrawal. High stripping force increases tensile and bending stress on the punch and retainer. Clearance, lubrication, material, punch surface, entry depth and stripper design all influence stripping force and tool life.

A polyurethane elastomer is a resilient polymer component that can deform under load and return toward its original shape. In press dies it may be used as a spring, pad, stripper, return element, shock absorber or forming medium. Selection requires verified hardness, dimensions, load and compression data.

The live product page states high load-bearing capacity, impact resistance, oil resistance, long life expectancy and abrasion resistance. These are broad product claims. Buyers should request the exact urethane grade, hardness, temperature range, chemical-resistance data and tested load-compression curve.