TPT May 2008

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Tube & Pipe Welding: Trends & Progress
M ay 2008 100 ›
fitted with a VRD (voltage reduction device)
– reduces the OCV to 30V for both MMA
and TIG welding. It has been designed for
use with most types of electrodes including
cellulosic ranging from 1.5-5mm diameter.
The MinarcTig™ 250 and MinarcTig™
250 MLP are rated 160A/16.4V at 100 per
cent duty cycle and 250A/20.1V at 35 per
cent duty cycle for TIG welding. For MMA
welding they are rated 150A/26V at 100
per cent duty cycle and 220A/28.8V at 35
per cent duty cycle, whilst the OCV is 95V.
These dual-purpose machines can be used
for both root and filler passes.
The MLP control panel available for both
the MinarcTig™ 180 and 250 machines
provides the user with Kemppi’s Minilog™
to control the arc force. They also come
with an automatic pulse welding function.
Kemppi Oy – Finland
Fax: +358 3 899 428
Email:
Website:
Kemppi (UK) Ltd – UK
Fax: +44 845 6444202
Email:
welding machine launched as a higher
power addition to the existing Minarc™
range of MMA/TIG welders.
The MinarcTig™ 250 and MinarcTig™
250 MLP are new 3-phase 400V 50/60Hz
lightweight MMA/TIG inverter welding
machines, whilst the existing MinarcTig™
180 Adaptive is also now available with a
MLP control panel.
The Minarc™ 220 is rated 150A/26V at
100 per cent duty cycle for MMA welding
and 160A/16.4V at 100 per cent duty cycle
when TIG welding. The maximum welding
current for both MMA and TIG welding is
220A at 35 per cent duty cycle.
When TIG welding, Kemppi’s TouchArc™
ignition system enables the operator to
scratch start the arc. The control panel has
a single knob electrode selector, with fine
adjustment possible using the same knob.
The OCV for MMA welding is 85V and 60V
for TIG welding, whilst the Minarc™ 220 –
Kemppi OY, Finland, has added more
models to its new range of Minarc™ MIG/
MAG, TIG and MMA lightweight inverter
welding machines.
The Minarc™ 220 is a new 3-phase 400V
50/60Hz, lightweight MMA/TIG inverter
Growing range of lightweight
inverter welders
 The Minarc™ 220 is a new 3-phase 400V
50/60Hz, lightweight MMA/TIG inverter welding
machine