Welding Technology

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Welding: used machines, accessories & rotary tables

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Current bid Current bid Closing time Closing time Number of bids Number of bids Location Location Relevance Relevance Name Name

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Serbia, 32000 Čačak

VARIOS VP10 V Spot welding machine

30/04/24 09:26

Bids: 0

700 €

Serbia, 32000 Čačak

ALFRED KOHLER Corner Welding Machine

30/04/24 10:50

Bids: 0

600 €

Serbia, 32000 Čačak

Welding Console

30/04/24 10:38

Bids: 0

450 €

Serbia, 32000 Čačak

OERLIKON PS 6,5 ER Spot Welding Machine

30/04/24 09:27

Bids: 0

450 €

Serbia, 21400 Bačka Palanka

RADE KONCAR 4B-2 Welding Device

30/04/24 09:22

Bids: 0

250 €

VALK WELDING Panasonic TB-1800 Welding Robot

Netherlands, 5301 LZ Zaltbommel

VALK WELDING Panasonic TB-1800 Welding Robot

25/04/24 14:14

Bids: 0

6,500 €

Germany, 73235 Weilheim Teck

SOYER KTS-850 CNC stud welding system

07/05/24 13:39

Bids: 0

3,900 €

Netherlands, 5731 AG Mierlo

FRONIUS TPS 450 MIG/MAG Welding Machine

22/04/24 14:00

Bids: 0

350 €

Switzerland, 9014 St. Gallen

CLOOS GLC 353 MC 3 Welding Machine

26/04/24 10:41

Bids: 10

430 €

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Netherlands, 4873 LA Etten-Leur

2500 Ø clamping plate

07/05/24 14:20

Bids: 0

4,000 €

Netherlands, 4873 LA Etten-Leur

Round fixture plate

07/05/24 14:29

Bids: 0

2,000 €

Italy, 25011 Calcinato

CEBON MIG-400 PL Wire welding machine

22/04/24 15:44

Bids: 0

1,240 €

Italy, 25011 Calcinato

CEBON MIG-400 PL Wire welding machine

22/04/24 14:33

Bids: 0

1,240 €

Poland, 58-560 Jelenia Góra

ESAB WARRIOR 500i Welding Machine

23/04/24 09:49

Bids: 3

1,250 €

Netherlands, 6673 DM Andelst

DAEWOO DAMIG-350GDL Welding machine

23/04/24 14:39

Bids: 0

1,120 €

Poland, 63-322 Gołuchów

ASPA ZGb-80 Welder

23/04/24 09:13

Bids: 0

1,000 €

Poland, 58-560 Jelenia Góra

Welding Table 2550 x 2100

23/04/24 09:51

Bids: 0

1,000 €

Poland, 58-560 Jelenia Góra

Welding Table 2500 x 1600

23/04/24 09:50

Bids: 0

700 €

Poland, 58-560 Jelenia Góra

Welding Table 2500 x 1600

23/04/24 09:52

Bids: 0

700 €

Poland, 58-560 Jelenia Góra

Welding Table 2500 x 1600

23/04/24 09:53

Bids: 0

700 €

Poland, 58-560 Jelenia Góra

Welding Table 2100 x 1350

23/04/24 10:40

Bids: 0

700 €

Poland, 58-560 Jelenia Góra

Welding Table 2500 x 1600

23/04/24 09:54

Bids: 0

700 €

SELCO Quasar 270 TLH Mobile TIG Welding Device

Netherlands, 5301 LZ Zaltbommel

SELCO Quasar 270 TLH Mobile TIG Welding Device

25/04/24 14:46

Bids: 0

500 €

Romania, 077145 Pantelimon

LINCOLN CV400-I Welding Machine

23/04/24 10:26

Bids: 1

500 €

Italy, 25011 Calcinato

CEBON MIG-250 Wire Welding Machine

23/04/24 11:45

Bids: 0

490 €

Italy, 25011 Calcinato

CEBON MIG-250 Wire Welding Machine

23/04/24 11:39

Bids: 0

490 €

Italy, 25011 Calcinato

CEBON MIG-250 Wire Welding Machine

22/04/24 13:27

Bids: 0

490 €

Netherlands, 5301 LZ Zaltbommel

SELCO Genesis 245 TLH Mobile Welder

25/04/24 14:18

Bids: 0

450 €

Netherlands, 5301 LZ Zaltbommel

RE-ON MIG 380 Mobile Welding Machine

25/04/24 14:15

Bids: 0

400 €

Netherlands, 6673 DM Andelst

TIG 200 Welding machine

23/04/24 14:55

Bids: 0

400 €

Netherlands, 5301 LZ Zaltbommel

CIFES Star 35P Spot Welding Machine

25/04/24 14:01

Bids: 0

350 €

Netherlands, 5301 LZ Zaltbommel

SAF ZIP 2.0 Mobile Plasma Cutter

25/04/24 14:24

Bids: 0

350 €

ELMATECH ELMA concept Vision spot welding machine

Germany, 33647 Bielefeld

ELMATECH ELMA concept Vision spot welding machine

22/05/24 14:09

Bids: 13

660 €

REHM SYNERGIC.PRO² MIG/MAG welding machine

Germany, 71384 Weinstadt

REHM SYNERGIC.PRO² MIG/MAG welding machine

28/05/24 12:01

Bids: 0

250 €

Switzerland, 9014 St. Gallen

CLOOS GLC 353 MC 3 welding machine

26/04/24 10:42

Bids: 10

430 €

CLOOS CAL 12073 U longitudinal seam welding machine

Germany, 35708 Haiger

CLOOS CAL 12073 U longitudinal seam welding machine

23/04/24 10:27

Bids: 2

270 €

Netherlands, 5301 LZ Zaltbommel

PLYMOTH Welding fume extractors (2x)

25/04/24 14:49

Bids: 0

200 €

FRONIUS WF 25 I/4 R/G/FSC Welding machine

Germany, 91541 Rothenburg

FRONIUS WF 25 I/4 R/G/FSC Welding machine

Closes in: 1d 10h

Bids: 44

3,200 €

Germany, 33647 Bielefeld

KUKA EWP500 spot welding machine

22/05/24 14:13

Bids: 0

190 €

Germany, 86685 Huisheim

KEMPPI welding machine

02/05/24 10:30

Bids: 0

150 €

Spain, 46470 Catarroja (Valencia)

SOLCAR GAR Three-phase Transformer

Closes in: 1d 10h

Bids: 0

150 €

Germany, 04895 Falkenberg

ELMATECH VARIO MIG 400L welding machine

Closes in: 0d 11h

Bids: 5

190 €

Germany, 04895 Falkenberg

ELMATECH VATIO MIG 400L welding machine

Closes in: 0d 11h

Bids: 6

190 €

Germany, 04895 Falkenberg

ELMATECH VARIO MIG 400L welding machine

Closes in: 0d 11h

Bids: 5

190 €

Germany, 04895 Falkenberg

ELMATECH VARIO MIG 400L welding machine

Closes in: 0d 11h

Bids: 5

190 €

OERLIKON EG 420 377-10 Welding turntable

Switzerland, 9014 St. Gallen

OERLIKON EG 420 377-10 Welding turntable

26/04/24 10:11

Bids: 4

140 €

Germany, 86685 Huisheim

ERHA P7Z spot welder

02/05/24 10:42

Bids: 0

100 €

Germany, 91541 Rothenburg

OERLIKON CITOCUT 20 I Welding machine

Closes in: 1d 10h

Bids: 5

140 €

Germany, 35708 Haiger

CLOOS GLC 356-C welding machine

23/04/24 10:24

Bids: 21

380 €

Germany, 35708 Haiger

Welding table with contents

23/04/24 10:23

Bids: 1

100 €

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Overview

What are welding machines used for?
How does a welding machine operate?
Different types of welding machines
The use of welding machinery in a variety of processes
Where to find a quality second-hand welding machine?

What are welding machines used for?

Welding machines are used to permanently bond workpieces together. They are mainly used for the processing of metal, but they have also found their application in the welding of plastic. There is a difference between welding machines and the welding equipment, where welders can be counted in. Welders are a component of a welding machine, which are mobile and can be used separately as well. Most of the classic welding machines are stationary, as they are used for mass production and normally installed on a specific spot in a production line. The type and composition of a welding machine are usually determined by the thickness of the workpieces it will be processing.

How does a welding machine operate?

A welding machine works using a thermal melting process on two surfaces. The melting process is done either on a specific spot or along a seam on the workpieces' surfaces and it is pressed together using high pressure, before cooling down and solidifying. This results in a permanent and substantial bond between the two workpieces, which can only be reversed if the workpiece is destructed. Other uses of welding include build-up welding and closing up of holes. For these purposes, hand-held welding equipment is used instead of welding machines.

Used to permanently bond workpieces together
Mainly used for the processing of metal
Type usually determined by the thickness of the workpieces

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Different types of welding machines

There is a large variety of welding machines and processes, which differ in their application and the necessary qualifications for their use. When it comes to different types of welding machines, the most commonly used ones are:

Spot welding machine
Arc welding machine
MIG welding machine
Gas welding machine
TIG welding machine
Submerged arc welding machine
Inverter welding machine
AC/DC welding machine

The use of welding machinery in a variety of processes

The welding machinery listed above is used in a variety of welding processes, the simplest probably being spot welding, performed with the use of a special machine. This process, along with electrode or arc welding, is used in the mass production of thin-walled metal products. Here, specially moulded pre-products are fixed onto the welding press and welded onto one another with melt-flows. In addition to the classic spot welding machine, a spot welding gun is used for big and complicated products, such as automobile bodies. In combination with industrial robots, spot welding machines can be a very efficient way to automatically bond metal products together.

MEGATRONIC Welding machine in use

Arc welding machinery

Arc welding is a process of joining one metal to another with the use of electricity, by creating enough heat to melt the metal, which, after cooling, results in the binding of the two melted metals. An arc welding machine uses a power supply to make an electric arc between the base material and the electrode, in order to melt the metals at the welding point.

A special type of arc welding is submerged arc welding. A submerged arc welding machine is used for the processing of very thick-walled workpieces, for example, large tubes or pipes. During this process, a powder made out of iron oxide is put upon the welding spot instead of using a shielding gas. This is a complicated process and the submerged welding machines should only be used by skilled workers with high qualification and experience levels. Generally, the submerged arc welding process is characterized by a very comprehensive quality control. During the different work steps in the use of a submerged arc welding machine, the fatigue strength of the welded seal is regularly checked.

Electric welding can be performed using further special types of welding machines – such as an inverter welding machine, or AC/DC welding machine. The main advantages of an inverter welding machine, when compared to the conventional one, are its small and compact size and lower power consumption.

The terms AC (Alternating Current) and DC (Direct Current) depict the polarity of the electrical current, which is being produced by a welding machine and which passes through the electrode. An AC/DC welding machine, as opposed to a conventional AC welder, has the capability of employing both alternating and direct current.

Gas welding machines are used to bring the base material to a melting point with an oxy-acetylene flame. At the same time, a filler rod is introduced that is continually being melted. This process is particularly useful for build-up welding to close up openings, unevenness or gaps in the material. A gas welding machine is also particularly applicable in the welding of cast iron. Gas shielded welding is, along with arc welding, the most widely used process. Through a continual emission of shielded gas, oxygen is prevented from reaching the welding spot, as that would result in burn holes. Gas shielded welding machines can either be hand-held or fully automatic. During this welding process, one can choose between using metal inert gas welding (using an MIG welding machine), metal active gas welding (MAG) or wolfram-inert-gas welding (WIG).

Where to find a quality second-hand welding machine?

Some of the well-known welding machine manufacturers are MESSER, ROTH, WALTER and KIEHNE. Although it is possible to find simple used welding machines for a price of a few hundred euros, some of the more complex used welding machinery can cost more than ten thousand euros. High-quality used welding machines for sale are offered by Surplex on a regular basis, and it is often possible to buy them at competitive prices in our numerous industrial auctions.