A clipping machine is a simple device, and almost every problem it develops
traces back to one of three things: dirt in the die, a misaligned die, or a worn
part that was left in service too long. Ten minutes a day prevents nearly all of
it.
Every shift
- Blow out the die area. Dust, fibre and clip fragments pack into the die
channel and stop the clip seating square. Compressed air, a few seconds, done. - Check the leftover strip. The spent clip strip should come out flat and
even. If it is twisted or bent, the die is already misaligned. - Run one clip on a scrap bag. Not to test strength — to see the crimp. A
correct crimp is symmetrical, with the two legs rolled evenly. An asymmetric
crimp means adjust before the shift starts, not after 200 bags.
Every week
- Inspect die and punch faces for chipping or a worn flat spot. A worn die
produces clips that look closed but hold less. - Lubricate the moving joints on manual clippers sparingly. Over-lubricating
a manual clipper attracts the dust you just cleaned out. - Check the air line on pneumatic heads. A drop in pressure below the
machine’s rating gives a partial crimp that is easy to miss visually.
What wears out, and when to keep spares
The die, the punch and the return spring do the work. Keep one die and one spring
per machine on the shelf. They are cheap, they are the parts that stop the line,
and waiting for a replacement to clear customs costs far more than the part.
When to call us
If a new die does not restore a clean, symmetrical crimp, the fault is usually
in the linkage rather than the die. Send a short video of the machine closing a
clip and we will tell you which adjustment to make.