Westken
information manuals and technical assistance
General Manual for UN35 Butt Welder
Westken,
190 van Eden crescent, Rosslyn, Pretoria, South Africa.
www.westken.co.za (Tel; 0027 12 541 6064/6065 fax; 0027 12 541 8086)
1
Last update 25
th
July 2019
“
UN35
” 35kva butt welder
The 35kva “UN25” butt welder are general purpose air clamping, air upsetting butt
welders fitted with a solid state timer system capable of welding mild steel round material
from 3mmdia up to and including 8mmdia. The transformer is thyristor controlled with
thyristor protection circuits and systems in place. Current/heat control, air clamping
pressure, upsetting pressure & upsetting stroke are all adjustable. Control voltage is
24vdc.
The machine has a CuCrZr copper upper clamping block and “V” cut to suit CuCrZr
copper lower welding electrode. On delivery the lower electrode can be un-machined.
There are two 63mmdia clamping cylinders and a 63mmdia upsetting cylinder. All air
equipment, solenoids & FRL units are 1/4bsp. The machine has a semi encapsulated
transformer which is water cooled. The machine is on a based lifter unit and can be
supplied on a wheel base unit.
The machines are operated by a single foot switch with a latch system to operate the
LH/RH clamping cylinders.
Explaining the Air Operated Butt Welder System
Note:
Please read this in conjunction with information on our website.
www.westken.co.za
Congratulations on your purchase of a “Westken” air operated UN35 Butt welder,
marketed by “Westken” in Pretoria, South Africa. Westken manufactures and imports a
