Welding - Rothenberger ROWELD P 110 Instrucciones De Uso

For Fitting-to-Fitting welding both wide main clamps have to be changed against small fitting
main clamps.
The right hand side small fitting main clamp is available as an option (art. No. 55809).
 Loosen winged handle at main clamp set and swivel away to the front. Then move upper
main clamps up and backwards.
 For pipes which are smaller than the maximum diameter of 110 mm insert reduction clamp-
ing inserts and fix them by using the knurled screw.
 Insert the plastic pipes or fittings to be welded into the clamps. Close upper clamps swivel in
winged handle, align pipe or fitting and screw up the winged handle tightly.
 Check whether the workpieces are tight in the clamping tool by moving the workpieces to-
gether.
 Also check whether the heating element has reached operating temperature. Heating is
ended when the yellow diode goes off and the green diode lights.
To guarantee even distribution of heat over the entire surface of the heating plate, it is
required to wait a period of approx. 10 minutes after the green diode lights up (according
to DVS). You must check the temperature with an appropriate temperature measurement
device!
 Place the trimmer between the pipe sections to be welded and fix it by the swivel.
 With the hand wheel move the pipe ends carefully against the trimmer blades of the trimmer
discs and turn the trimmer around by moving the handle up and down.
Pipes and fittings can be machined on one side only by turning the block screws on the front
bottom side of the machine towards the side, which is not to be machined.
Risk of injury! Do not grasp into the running knife while the trimmer is put into opera-
tion!
 After the front sides are trimmed flat, which can be recognized by an uniform and unbroken
chip, slowly move the pipe ends apart. Unlock the trimmer by the swivel and remove it.
 Move workpieces together and check whether the welded surfaces are flat. If this is not the
case, trimming must be repeated.
The axial offset between the workpieces must not be more than 10% of the wall thicknes and the
gap between the flat pipe surfaces must be more than 0,5 mm (according DVS). Otherwise ad-
just with help of the clamping screws and repeat trimming.
The trimmed surfaces prepared for welding must not be touched with the hands and must
be kept free of dirt!
3.2.3

Welding

Risk of crushing! Always maintain a safe distance from the machine when moving
clamping tools and pipes together! Never reach into the working area!
 Put heating element between the workpieces.
 Move pipe ends together and apply required adjusting force.
 As soon as the required bead height is reached evenly over the entire circumference at the
pipe ends, reduce the force to the corresponding preheating force (near 0). It must be en-
sured that the workpiece ends abut evenly to the heating plate.
 After finishing the preheating time, move pipe ends apart, remove heating plate and move
pipe ends together again within the max. change over time. Increase force as lineary as
possible to the corresponding joining force within the build up pressure time. The joining
force must be maintained with a tolerance of ± 6,66% during the entire cooling period.
 At the end of the cooling period release the spring via handwheel. Unclamp and take out the
welded tube sections.
All welding parameters can be found in the enclosed welding tables.
ENGLISH 13