ESAB STA, STB A25 STA, A25 STB Instruction manual

GB

A25

STA/STB

Instruction manual

Valid for serial no. 751-xxx-xxxx, 838-xxx-xxxx0443 922 101 GB 100325

DECLARATION OF CONFORMITY

according to the Machinery Directive 2006/42/EC, according to the EMC Directive 2004/108/EC

FÖRSÄKRAN OM ÖVERENSSTÄMMELSE

enligt Maskindirektivet 2006/42/EG, enligt EMC−Direktivet 2004/108/EG

Type of equipment Materialslag
Welding station used as carrier of welding heads

Brand name or trade mark Fabrikatnamn eller varumärke
ESAB

Type designation etc. Typbeteckning etc.
STA / STB from Serial number 751 xxx xxxx (2007 week 51)
STA / STB are members of the ESAB product family A25

Manufacturer or his authorised representative established within the EEA
Name, address, telephone No, telefax No: Tillverkarens namn, adress, telefon, telefax:

ESAB AB, Welding Equipment
Esabvägen, SE−695 81 LAXÅ, Sweden
Phone: [phone], Fax: [phone]

The following harmonised standard in force within the EEA has been used in the design:

Följande harmoniserande standarder har använts i konstruktionen:
EN 60204−1, Safety of machinery – Electrical equipment of machines – Party 1: General requirements

EN 12100−2, Safety of machinery – Part 2: Technical principles
EN 60974−10 Arc welding equipment – Part 10: Electromagnetic compatibility (EMC) requirements

Additional information: Restrictive use; Class A equipment, intended for use in locations other than residential

By signing this document, the undersigned declares as manufacturer, or the manufacturer’s authorised
representative established within the EEA, that the equipment in question complies with the safety requirements
stated above.

Genom att underteckna detta dokument försäkrar undertecknad såsom tillverkare, eller tillverkarens representant inom
EES, att angiven materiel uppfyller säkerhetskraven angivna ovan.

Date / Datum
Laxå 2010−03−25

Signature / Underskrift Position / Befattning
Global Director
Equipment and Automation
Kent Eimbrodt
Clarification

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1 SAFETY 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 INTRODUCTION 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Equipment 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.1 Welding station A25 STA 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.2 Automatic tube welding machine A25 STA 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.3 Automatic tube welding machine A25 STB 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.4 Technical data 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 INSTALLATION 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 Connection of Welding Station A25 STA to welding power source 10. . . . . . . . . . . . . . . .

4 OPERATION 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Settings 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 MAINTENANCE 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 Maintenance and Service 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 ORDERING OF SPARE PARTS 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DIAGRAM 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ORDERING NUMBER 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WEAR PARTS 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ACCESSORIES 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rights reserved to alter specifications without notice.

TOCe

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1 SAFETY

Users of ESAB welding equipment have the ultimate responsibility for ensuring that anyone who
works on or near the equipment observes all the relevant safety precautions. Safety precautions
must meet the requirements that apply to this type of welding equipment. The following recommen
dations should be observed in addition to the standard regulations that apply to the workplace.

All work must be carried out by trained personnel well-acquainted with the operation of the welding
equipment. Incorrect operation of the equipment may lead to hazardous situations which can result
in injury to the operator and damage to the equipment.

1. Anyone who uses the welding equipment must be familiar with:

S its operation
S location of emergency stops
S its function
S relevant safety precautions
S welding

2. The operator must ensure that:

S no unauthorized person is stationed within the working area of the equipment when it is

started up.

S no-one is unprotected when the arc is struck

3. The workplace must:

S be suitable for the purpose
S be free from drafts

4. Personal safety equipment

S Always wear recommended personal safety equipment, such as safety glasses, flame-proof

clothing, safety gloves. Note! Do not use safety gloves when replacing wire.

S Do not wear loose-fitting items, such as scarves, bracelets, rings, etc., which could become

trapped or cause burns.

5. General precautions

S Make sure the return cable is connected securely.
S Work on high voltage equipment may only be carried out by a qualified electrician.
S Appropriate fire extinquishing equipment must be clearly marked and close at hand.
S Lubrication and maintenance must not be carried out on the equipment during operation.

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WARNING

Arc welding and cutting can be injurious to yourself and others. Take precausions when welding.
Ask for your employer's safety practices which should be based on manufacturers' hazard data.

ELECTRIC SHOCK - Can kill

S Install and earth the welding unit in accordance with applicable standards.
S Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
S Insulate yourself from earth and the workpiece.
S Ensure your working stance is safe.

FUMES AND GASES - Can be dangerous to health

S Keep your head out of the fumes.
S Use ventilation, extraction at the arc, or both, to take fumes and gases away from your breathing zone

and the general area.

ARC RAYS - Can injure eyes and burn skin.

S Protect your eyes and body. Use the correct welding screen and filter lens and wear protective

clothing.

S Protect bystanders with suitable screens or curtains.

FIRE HAZARD

S Sparks (spatter) can cause fire. Make sure therefore that there are no inflammable materials nearby.

NOISE - Excessive noise can damage hearing

S Protect your ears. Use earmuffs or other hearing protection.
S Warn bystanders of the risk.

MALFUNCTION - Call for expert assistance in the event of malfunction.

Read and understand the instruction manual before installing or operating.

PROTECT YOURSELF AND OTHERS!

CAUTION!

Read and understand the instruction manual before
installing or operating.

CAUTION!

This product is solely intended for arc welding.

CAUTION!

Class A equipment is not intended for use in residential locations where
the electrical power is provided by the public low-voltage supply system.
There may be potential difficulties in ensuring electromagnetic
compatibility of class A equipment in those locations, due to conducted
as well as radiated disturbances.

Do not dispose of electrical equipment together with normal waste!

In observance of European Directive 2002/96/EC on Waste Electrical and Electronic
Equipment and its implementation in accordance with national law, electrical equipment
that has reached the end of its life must be collected separately and returned to an
environmentally compatible recycling facility. As the owner of the equipment, you should
get information on approved collection systems from our local representative.

By applying this European Directive you will improve the environment and human
health!

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ESAB can provide you with all necessary welding protection and accessories.

2 INTRODUCTION

A25 is a modular component system for mechanised TIG welding.

The components can be built together for customised solutions and are contained in
the STA/STB automatic tube welding machines and welding station STA.

Typical applications for A25:

S Automatic tube welding machines
S Welding column and booms
S Head and tailstocks
S Tables for circumferential welding
S Fixtures for longitudinal welding
S Customised applications

Welding station A25 STA

The A25 STA welding station is designed for longitudinal welding of tubes and for
welding of tube joints or other types of workpieces.
For rotation of the workpiece the station is provided with a motorised turntable.

Automatic tube welding machines A25 STA / A25 STB

A25 STA/ A25 STB are automatic welding machines designed for longitudinal weld
ing of tubes and for welding of tube joints. They are to be used together with some
type of carrier, for example a column and boom unit or a railborne carriage.

2.1 Equipment

2.1.1 Welding station A25 STA

Welding station A25 STA is equipped with a motorised AVC slide, a motorised
weaving slide and a VEC motor for the rotation of the workpiece.
The station can also be provided with equipment for narrow-gap welding.
The welding station is adapted for connection to the programmable welding
power source.

1. VEC motor with gear

2. Automatic tube welding machine A25
STA with machine torch BTE
250M Automatic tube welding
machine A25 STA with machine
torch BTE 500M

3. Stand

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