How to prevent slug pulling? - TIPS AND INFORMATION

Mechanism of Slug-Pulling

• Vacuum Adsorption
• Oil Slick Adsorption
• Magnetic Adsorption
• Pressure to punch edge due to burrs

DIE SOLUTIONS

ANTI-SLUG DIE

Rolleri tools are using slug catcher shape for die as standard specification.

Standard and special tools has this function, except for:
"Blanking" tools, dies with min. dimensions lower than 2 mm, Dies with die clearance lower than 0,1 mm

DEPOSITRON COATING

Small and hard edges are created electrically on the internal side of the die hole.Standard on dies with diameter Ø2~Ø4.5

POSITIV STRAIGHT DIE

We suggest to use this solution in "blanking" processes (where the slug is the final product),with dies with dimension/diameter lower than 2 mm and with die clearance lower than 0,1 mm

CYCLONE DIE (COMPATIBLE WITH AMADA VACUUM SYSTEM)

Cyclone die has small sloped holes that allows an air flow, in order to create vacuum underneath the die. This vacuum prevent the slug pulling. Just for compatible machines

PUNCH SOLUTIONS

SHEARS

ROOF SHEAR

Useful to reduce tonnage and noise, thanks to an angle of 2 ° or 5 ° at the tip of the punch.

REVERSE ROOF SHEAR

To prevent punch and die touching each other when cutting tools are used.

CONCAVE SHEAR

To prevent punch and die touching each other when cutting tools are used.

DOUBLE VALLEY SHEAR

To prevent punch and die touching when using long cutting tools (eg 80x5 or 110x5).

4-WAY SHEAR

Best shear to use on square-shaped tools that make notches and therefore do not work with full stroke. This shear keeps the shearing force central, avoiding problematic side loads.

WHISPER SHEAR

Only for tools type R2 (Trumpf).

URETHANE SLUG EJECTOR

The slug ejector is good for slug pulling problem. It can be installed to over Ø4 for RO and over 6
width forshaped.