Kunststoffschweißtechnik
Operating
and
indicating elements
Chapter 4
10.12.2013 Working
instructions
WIDOS PSM 20
Page 16 of 31
4.2. How to clamp the sheet
Insert and clamp each sheet between clamping beams and basic plate.
In order to clamp, release the clamping beam by the corresponding foot switch.
Insert the plastic sheet onto the basic plate and align the sheet in a way that the welding
surface overlaps to the inside in rectangular manner and at a short distance.
The clamping beams are flush on one side
and feature a ledge on the opposite side.
The beams may be used on both sides.
While welding sheets, especially thin sheets,
you must use the ledge side on the inside;
then the sheets are clamped close to the
weld.
While welding angles you must insert the
beam flush to the center in order that the
vertical sheet may be supported.
4.2.1. How to change the clamping beams
Detach the threaded bolts at the rear cylinder and disconnect the pneumatic hoses from the
cylinder (left image).
Slightly lift the clamping beams at the front and swing the piston rods forwards out (right
image).
Basic plate
Clamping beam closed
Beam side flush
Beam side with ledge
Clamping beam open
Threaded bolt
Disconnect hoses here
