Production variety and just-in-time manufacturing make die change a critical factor for the entire press operation. Smaller production runs can be less efficient, as more frequent retooling increases downtime. Frequent re-tooling also increases both the risk of operator injury and damage to the tools.

The best die change system will be the one that meets these three goals: safety, ergonomics and efficiency

DIE CHANGE PROCESS PHASES

  • 1
    Clamping
  • 2
    Positioning
  • 3
    Transporting
CLAMPING

It is important to select the right type of clamp for your application. For that, the basic data is necessary: Press tonnage and opening force in Newton [N], weight of dies in kg, press stroke in cost/minute, die change frequency  or the space available for clamps on bolster and ram (dimension)

REMOVABLE CLAMPS

For die change the clamps must be removed and re-inserted manually. This solution is cost-effective and flexible, but more labour-intensive.

Various dimensions and capacities:

PSL, TBHS, LSGH, TB90, LSHP, LBH, TBHI

FIXED CLAMPS

Only fixed clamps allow full automation with no further  aid, but they require full standardisation of the die interface.

Various dimensions and capacities:

PSE, BTSA, BTSB, BTSC, BCM, BTM, LSH, BLH

POSITIONING

SINGLE CARTRIDGES AND BARS

Our rolling bars are available in DIN650 sizes from 18 to 36. Balls and rollers are lifted either mechanically or hydraulically.

ROLLING ON ROLLERS

Allows only forward and backward movements. Positioning accuracy is ensured by using guides and/or a loading device, such as our Push-Pull System (PPS) The load capacity is much higher (>2 t)

Various dimensions and capacity:

LGRL, LGHL, LGH, LGGH, LG, LGG

ROLLING ON BALLS

Allows flexible and highly accurate positioning. The die can be moved in any direction and at any angle. This is useful for smaller dies that are positioned manually (<2 t)

Various dimensions and capacity:

LBR, LBH

PUSH PULL SYSTEMS

Up to 21 tonnes

The push pull system is mounted on the press and introduces and extracts the die automatically.

CARTS ON RAILS

50+ tonnes

With push-pull systems. Reduces the time of die change process

TRANSPORTING

GPO TRUCKS

The smallest handles a 500 kg load, the biggest a 20 tonne load and beyond this weight on demand.