Lincoln Electric NERTAJET CPM 250 Mounting instructions

NERTAJET TORCHE
CPM
250-300-720-900
SAFETY INSTRUCTIONS FOR USE AND MAINTENANCE
DEVICE No W000325103 - W000325113 - W000325089
W000325088 - W000325096 - W000325095
W000274365 - W000374967 - W000375440
W000384724
EDITION : EN Instructions for use REF: 8695 9064
REVISION : L
DATE : 10-2018 Original instructions

Thank for the trust you have expressed by purchasing this equipment, which
will give you full satisfaction if you follow its instructions for use and
maintenance.
Its design, component specifications and workmanship comply with
applicable European directives.
Please refer to the enclosed CE declaration to identify the directives
applicable to it.
The manufacturer will not be held responsible where items not recommended
by themselves are associated with this product.
For your safety,there follows a non-restrictive list of recommendations or
requirements, many of which appear in the employment code.
Finally we would ask you kindly to inform your supplier of any error which
you may find in this instruction manual.

8695 9064
CPM 250-300-720-900 I
CONTENTS
A - SAFETY INSTRUCTIONS............................................................................................................1
B - GENERAL ....................................................................................................................................3
C - TORCH BODY..............................................................................................................................10
D - TORCH LEAD-BUNDLES............................................................................................................14
E - TAPERED ELECTRODE FITTING, SCREW-ON NOZZLE.........................................................24
F - FLAT ELECTRODE FITTING, CONICAL PIPE...........................................................................30
G - WATER VORTEX FITTINGS .......................................................................................................36
H - CPM TORCH ACCESSOIRIES....................................................................................................42
I - UPKEEP AND MAINTENANCE ....................................................................................................44
J - RECOMMENDATIONS FOR USE................................................................................................48
PERSONAL NOTES ..........................................................................................................................50

8695 9064
II CPM 250-300-720-900
REVISIONS
REVISION H 09/10
DESIGNATION
PAGE
- Creation in several languages - Add CPM900
REVISION I 03/12
DESIGNATION
PAGE
Complete update
REVISION J 01/15
DESIGNATION
PAGE
Complete update
REVISION K 09/15
DESIGNATION
PAGE
Complete update
REVISION L 10/18
DESIGNATION
PAGE
To change logos

8695 9064 / L
CPM 250-300-720-900 A-1
A - SAFETY INSTRUCTIONS
For general safety instructions, please refer to the specific manual supplied with
the equipment.
EQUIPMENT FOR PLASMA CUTTING
Before any servicing operations on the torch, make
sure that the generator is powered down.
During the cutting operation, the tip of the torch may be heated
considerably. Before removal, it is imperative to use protective
equipment.

A - SAFETY INSTRUCTIONS 8695 9064 / L
A-2 CPM 250-300-720-900
DISCHARGING FREEZCOOL
« Red »
« Green »
W000010167 (9.6L)
W000010168 (20L)
(pink heat transfer liquid 285)
W000381407 (20L)
Freezcool should not be discharged in large
quantities into the natural environment. You should
observe local emission standards concerning
COD().
Before any emission of this product, contact your
local water Authority to inquire about the regulations
applying to your region.
You should inform them of :
- The COD of the Freezcool (741000 mg/kg)
- The quantity in kg to be discharged
TheWater Authoritywill advise you of theapproach to
be followed and in particular:
- The location
- The quantity
- The timing
...for discharging the product.
The COD (Chemical Oxygen Demand) represents the portion of the product requiring oxygen, (e.g.
oxidizable mineral salts and the major part of organic compounds).

8695 9064 / L
CPM 250-300-720-900 B-3
B - GENERAL
GENERAL :
Machine PLASMA Cutting (CPM) torches are cutting tools which are necessarily
mechanised and designed to be connected to NERTAJET HP installations.
In a CPM torch an electrode is inserted with a shape suitable for plasmagene gas,
selected according to the application.
The torch-end receives a nozzle which, through the combined effect of the electric
arc and the plasmagene gas, forms plasma.
The resulting high temperatures melt the material which is to be cut (electricity
conductor) and the kinetic action of gas on it effects the cutting kerf.
The numerous possible assemblies on CPM torches make them universal tools
using the very latest techniques for transferred plasma arc.
ELECTRICAL SAFETY :
For your safety and in order to compiy with safety standards, we have fitted, on the
top part of the rack, a connecting point enabling the rack pipe to be grounded.
in practice, this point is linked to the moveable part of the machine which supports
the torch. This point will it self be grounded.
The electric connections must be carried out using wires with a cross section at
least équivalent to that of the largest generator phase wire.
Before any servicing operations on the torch, make sure that the generator is
powered down.
SCALES :
The cutting conditions indicated in the scales will generally produce excellent cuts
without any other modifications.
For some particular cases (special metallurgy compositions, coatings), it may be
necessary to carry out slight modifications in the conditions specified in the scale.
The parameters which will have the most significant effect on the cutting quality
are:
- speed of movement,
- distance between the torch and work-piece to be cut (arc voltage).
The intensity and fluid flowrates are optimised and must not be considered as
variables.
Quite the opposite, modifying these parameters in relation to the recommended
settings will reduce the service-life of the wear-and-tear parts and downgrade the
quality of the cut.

B - GENERAL 8695 9064 / L
B-4 CPM 250-300-720-900

8695 9064 / LB - GENERAL
CPM 250-300-720-900 B-5
NERTAJET CPM TORCHES
FOR AUTOMATIC PLASMA CUTTING MACHINE
Reference
Qty
Sales
unit
Description
Weight
(kg)
NERTAJET CPM 250 TORCH
W000325113
1
PI
Torch without accessory CPM 250. with 4 leads
5,9
W000325103
1
PI
Torch without accessory CPM 250. with 7 leads
8,7
NERTAJET CPM 300 TORCH
W000325088
1
PI
Torch without accessory CPM 300. with 4 leads
5,9
W000325089
1
PI
Torch without accessory CPM 300. with 7 leads
8,7
NERTAJET CPM 720 TORCH
W000325095
1
PI
Torch without accessory CPM720. with 4 leads
5,9
W000325096
1
PI
Torch without accessory CPM 720. with 7 leads
8,7
W000374967
1
PI
Torch without accessory CPM720-900. HPC with 3 leads
5,9
W000375440
1
PI
Torch without accessory CPM 720-900. HPC with 4 leads
5,9
W000384724
1
PI
Torch without accessory CPM 720-900. HPI with 2.2 leads
5,9
W000325085
1
PI
Argon hydrogen fitting for CPM with Nertajet HP 600
3,8
W000325086
1
PI
Water vortex nitrogen fitting for CPM with Nertajet HP 600
6,0
NERTAJET CPM 900 TORCH
W000274365
1
PI
Torch without accessory CPM 900. with shielded harness, 7m long
8,7
W000374967
1
PI
Torch without accessory CPM720-900. HPC with 3 leads
5,9
W000375440
1
PI
Torch without accessory CPM 720-900. HPC with 4 leads
5,9
W000384724
1
PI
Torch without accessory CPM 720-900. HPI with 2.2 leads
5,9
W000325086
1
PI
Water vortex nitrogen fitting for CPM
6,0
W000325085
1
PI
Argon hydrogen fitting for CPM
3,8
W000274644
10
PI
Nozzle 900A CPM900
W000274645
5
PI
Tungsten electrode Ø 5.5 900A
W000274364
1
PI
Tooling argon hydrogen for CPM 900
ACCESSORIES COMMON TO ALL TORCHES
W000325114
1
PI
Tool kit for CPM 250. torches
0,8
W000138151
1
PI
Tool holder Torch CPM Support PO251
3,0

B - GENERAL 8695 9064 / L
B-6 CPM 250-300-720-900
External water vortex
fitting
Flat electrode fitting
Tapered electrode fitting