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
- Clamping
- Positioning
- 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.