Lincoln Electric SP20/MP2 Series Mounting instructions

MICROPLASMA WELDING TORCH

SP20 / MP2

SP45 / MP5

SAFETY INSTRUCTION FOR USE AND MAINTENANCE

EDITION : EN Instructions for use REF : 8695 9001

REVISION : E

DATE : 07-2018 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 9001

SP20/SP45 - MP2/MP5 I

CONTENTS

A - SAFETY INSTRUCTIONS............................................................................................................1

B - DESCRIPTION .............................................................................................................................2

1 - SP20/MP2 TORCH.............................................................................................................2

2 - SP45/MP5 TORCH.............................................................................................................2

C - INTRODUCTION ..........................................................................................................................3

1 - SP20 AND SP45 MANUAL & AUTOMATIC MICROPLASMA WELDING TORCHES.......3

2 - GENERAL SPECIFICATIONS............................................................................................3

3 - SP20 AND SP45 MANUAL TORCH ARC CONTROL UNIT...............................................4

D - DIMENSIONS AND ATTACHMENT

.........................................................................................5

1 - MANUAL AND AUTOMATIC TORCHES............................................................................5

E - DELIVERY STATE .......................................................................................................................6

1 - SP20/45 MANUAL AND AUTOMATIC TORCHES............................................................6

F - USING SP20/45 AND MP2/5 TORCHES ....................................................................................8

1 - CHOOSING THE CONSTRICTING NOZZLE.....................................................................8

2 - CHOOSING ELECTRODESTIPPINGFITTINGTO THE TORCH .......................................8

G - OPERATING HINTS AND TIPS...................................................................................................10

1 - CONNECTING THE TORCH..............................................................................................10

2 - PRECAUTIONS LINKED WITH COOLING ........................................................................10

3 - FITTING THE CONSTRICTING NOZZLES........................................................................10

4 - UTILISATION DURING WELDING.....................................................................................11

H - FITTING A CCESSORIES............................................................................................................12

I - COMPONENT IDENTIFICATION ..................................................................................................14

1 - SP20/SP45 (MP2/MP5) MANUAL AND AUTOMATIC TORCHES ....................................14

2 - SP20

MP2

MICROPLASMA WELDING TORCH ..........................................................16

3 - SP45

MP5

MICROPLASMA WELDING TORCH ..........................................................18

PERSONAL NOTES ..........................................................................................................................20

8695 9001

II SP20/SP45 - MP2/MP5

REVISIONS

REVISION B 05/95

DESIGNATION

PAGE

Updating ISEE

6 and 7

REVISION C 07/06

DESIGNATION

PAGE

To change logo

REVISION D 02/16

DESIGNATION

PAGE

Complete update

REVISION E 07/18

DESIGNATION

PAGE

Complete update LEE

8695 9001 / E

SP20/SP45 - MP2/MP5 A-1

A - SAFETY INSTRUCTIONS

For general safety instructions, please refer to the specific manual supplied with the

equipment.

8695 9001 / E

B-2 SP20/SP45 - MP2/MP5

B - DESCRIPTION

1 - SP20/MP2 TORCH

Delivered without accessories. (Shielding nozzle, nozzle and electrode parts)

SP20 / MP2 manual

W000315653

W000370620

SP20 / MP2 automatic

W000315655

W000370621

2 - SP45/MP5 TORCH

Delivered without accessories. (Shielding nozzle, nozzle and electrode parts)

SP45 / MP5 manual

W000273236

W000315652

SP45 / MP5 automatic

W000273237

W000370619

8695 9001 / E

SP20/SP45 - MP2/MP5 C-3

C - INTRODUCTION

1 - SP20 AND SP45 MANUAL & AUTOMATIC MICROPLASMA WELDING

TORCHES

The manual and automatic torches SP20 and SP45 are specially designed for low

current plasma welding only: from 0.3 to 45 A.

They are fitted with a 4 or 8 meters long harness which can be connected to

amicro-plasma power source such as NERTAMATIC 50 or PLASMAFIX 51.

The service provided by these high-performance tools can only bemaintained if the

operating and maintenance instructions described in this technical instruction are

respected.

This is why we recommend all our customers, technical, purchasing and

maintenance departments, production supervisors and foremen to make this

instruction available to operators.

SP20 and SP45 torches are only operational when they are accompanied by their

accessory kit which is supplied separately under another reference.

2 - GENERAL SPECIFICATIONS

SP20 - MP2

SP45 - MP5

References « manu »

W000315653

W000370620

W000273236

W000315652

References « auto »

W000315655

W000370621

W000273237

W000370619

Accessory kit « manu »

W000370622

W000315651

Accessory kit « auto »

W000370777

Current

20A100%

45A100%

Weight « manu »

1,30 kg

2,00 kg

1,45 kg

2,35 kg

Weight « auto »

0,96 kg

1,70 kg

1,30 kg

2,20 kg

Admissible electrodes

1 mm

75or150mm

2% thorium

2% lanthanium

1 mm

75or150mm

2% thorium

2% lanthanium

1 to 1,6 mm 75

or150mm2%

thorium 2%

lanthanium

1 to 1,6 mm

75or150mm

2% thorium

2% lanthanium

Cooling

FREEZCOOL

2 L/min

FREEZCOOL

2 L/min

FREEZCOOL

2,2 L/min

FREEZCOOL

2,2 L/min

Central gas

0,1 L/min à

1,0L/min

0,1L/min à

1,0L/min

0,1L/min à

1,0L/min

0,1L/minà

1,0L/min

Annular gas

2 L/min à

12L/min

2 L/min à

12L/min

2L/minà

12L/min

2L/minà

12L/min

Automatic torch fixing

It can be attached by a clip on the handle Ø 24 mm.

C - INTRODUCTION 8695 9001 / E

C-4 SP20/SP45 - MP2/MP5

3 - SP20 AND SP45 MANUAL TORCH ARC CONTROL UNIT

This control unit fits onto the handle and has two buttons:

The red button controls welding arc transfer,

The green button is used to trigger the arc extinction cycle which can only

be total if the red button is pressed again.

CONNECTION HARNESS

It is a total of 4 meters long and is protected by a PVC sheath, it has two gas hoses

and two water hoses.

Two of these hoses are doubled up with a cable which supplies the current for

welding and for the pilot arc. The second cable is for the pilot arc current return.

In addition, the SP20 / SP45 manual torches harness has the control cable fitted

with a connector which connects directly to the NERTAMATIC 50 or PLASMAFIX 51

power source.

ADMISSIBLE CONSTRICTING NOZZLES

Six current models of constricting nozzle can be chosen from the accessories kit.

They are characterised by the diameter of the plasma jet ejection orifice which itself

depends of the welding current: Ø 0,6-0.8-1-1.2-1.5-1.8 mm.

These constricting nozzles are cooled by a tapered heat exchange surface located

to the rear of each constricting nozzle.

SHIELDING GAS NOZZLES

These refractory nozzles are made of sintered alumina.

They are differentiated by their shielding diameter: 7-8-9-10-11 mm.

The choice is made depending on torch accessibility to the zone to be welded; the

largest diameter is recommended to obtain good gas shielding of the molten metal.

8695 9001 / E

SP20/SP45 - MP2/MP5 D-5

D - DIMENSIONS AND ATTACHMENT

1 - MANUAL AND AUTOMATIC TORCHES

SP20 / MP2

Manu

Auto

SP45 / MP5

Manu

Auto

8695 9001 / E

E-6 SP20/SP45 - MP2/MP5

E - DELIVERY STATE

1 - SP20/45 MANUAL AND AUTOMATIC TORCHES

SP 20/45 manual and automatic torches are supplied unequipped.

That is to say :

complete connection harness, body equipped with short electrode clamping

plug

They are only operational when accompanied by the accessory kit described

below.

ACCESSORY KITS SP20 /MP2

Ref : W000370622 (Manu)

Ref : W000370777 (Auto)

This kit contains the following parts:

3 constricting nozzles Ø 0.6 mm

3 constricting nozzles Ø 0.8 mm

3 constricting nozzles Ø 1.0 mm

3 constricting nozzles Ø 1.2 mm

2 electrode holder clamps for electrodes Ø 1 mm

1 alumina gas nozzles Ø 8 mm

1 alumina gas nozzles Ø 10 mm

2 centering collars for electrode Ø 1.0 mm

2 electrode centering devices Ø 1 mm

2 nozzle seals

2 clamping plug seals

1 electrode positioning tool (manual)

1 electrode positioning tool (automatic)

5 electrodes Ø 1 mm

2 fixing nuts (automatic)

ACCESSORY KITS SP45 /MP5

Ref : W000315651

This kit contains the following parts:

2 constricting nozzles Ø 0.8 mm

2 constricting nozzles Ø 1.0 mm

2 constricting nozzles Ø 1.2 mm

2 constricting nozzles Ø 1.5 mm

2 constricting nozzles Ø 1.8 mm

2 electrode holder clamps for electrodes Ø 1 mm

2 electrode holder clamps for electrodes Ø 1.6 mm

1 alumina gas nozzle Ø 7 mm

1 alumina gas nozzle Ø 9 mm

1 alumina gas nozzle Ø 11 mm

2 centering collars for electrode Ø 1.0 mm

2 centering collars for electrode Ø 1.6 mm

2 electrode centering devices Ø 1 mm

2 electrode centering devices Ø 1.6 mm

2 nozzle seals

2 clamping plug seals

1 electrode positioning tool

5 electrodes Ø 1 mm

5 electrodes Ø 1.6 mm

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