Technical Specifications - LORCH LTG 900 Bedienungshandbuch

9 Technical specifications
General specifications for the LORCH TIG welding torches in range of i-LTG und i-LTW are
available in capacities of 80 to 450 A.
Ambiant temperature
During welding :
Transport and storage:
Relative air humidity:
Technical data
General torch data
Type of voltage
DC polarity of the elec-
trodes
Type of use
Voltage limitation
(peak value)
Arc ignition voltage and
arc stabilization voltage
Electrode
Shielding gas
Product-specific torch data
Power Rating
AC/DC
Electrode Ø
Torch lenght
Gas flo rate
Cooling
Highest temperature of
cooling medium*
Minimum quantity of
cooling flow
Lowest pressure of entry
Highest pressure of entry
Abb. 1: Technical data
- 26 -
-10 ºC bis + 55 ºC
-10 ºC bis + 55 ºC
up to 90% at a temperature of 20 ºC
LTG
900
V
kV
DC A 65
A 47
mm 0,5-1,6 0,5-2,4 0,5-4,0 0,5-4,0 0,5-4,0 0,5-3,2 1,6-6,4
m 4/8/12
l/min 5 - 12
Gas
°C
l/min
bar
bar
LTG/ LTG/
LTV LTV
1800
1700 2600
DC/AC
Usually negative
Hand-held
tungsten electrodes suitable for TIG use
DIN EN ISO 14175
82 106
59 77
4/8/12 4/8/12 4/8/12
7 - 15 7 - 18 7 - 20
Gas Gas Water
Technical specifications
LTW LTW LTW
1800sc 3000
113
12
320 400 320
230 280 230
4/8/12 4/8/12
7 - 20 8 - 22
Water Water
60 60
1,0 1,0 1,0
2,5 2,5 2,5
5,0 5,0 5,0
LTW
4500
450
360
4/8/12
8 - 22
Water
60 60
1,0
2,5
5,0
10.12