Welding Technology

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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Italy, 45010 Rovigo

Machines and Equipment

21/01/2025 10:00

Bids: 0

71,500 €

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Spain, 08295 Sant Vicenç de Castellet

COMMERSALD ROBONEXT Welding Cell

30/01/2025 10:58

Bids: 0

35,000 €

YASKAWA DX 100 Double Positioner Welding Station with YASKAWA Robot

Czech Republic, 397 01 Písek

YASKAWA DX 100 Double Positioner Welding Station with YASKAWA Robot

20/01/2025 11:03

Bids: 0

6,500 €

Spain, 08295 Sant Vicenç de Castellet

COMMERSALD PTA200ROT Welding Cell

30/01/2025 10:15

Bids: 0

8,000 €

Welding Cell with FANUC ARC Mate 100iC Industrial Robot

Play

Czech Republic, 397 01 Písek

Welding Cell with FANUC ARC Mate 100iC Industrial Robot

20/01/2025 11:09

Bids: 22

7,000 €

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Czech Republic, 397 01 Písek

Welding Cell with FANUC ARC Mate 100iC Industrial Robot

20/01/2025 11:08

Bids: 0

2,800 €

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Czech Republic, 397 01 Písek

Welding Cell with FANUC Arc Mate 100iC Industrial Robot

20/01/2025 11:06

Bids: 22

7,150 €

Welding Cell with 2 MOTOMAN NX100 Welding Robots and Positioner

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Czech Republic, 397 01 Písek

Welding Cell with 2 MOTOMAN NX100 Welding Robots and Positioner

20/01/2025 11:05

Bids: 0

2,800 €

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Czech Republic, 397 01 Písek

Welding Cell with FANUC ARC Mate 100iC Industrial Robot

20/01/2025 11:04

Bids: 1

2,800 €

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Czech Republic, 397 01 Písek

Welding Cell with FANUC ARC Mate 100iC Industrial Robot

20/01/2025 11:07

Bids: 1

2,200 €

REIS SRV 16L welding robot with accessories

Germany, 90441 Nürnberg

REIS SRV 16L welding robot with accessories

22/01/2025 10:12

Bids: 0

17,000 €

ERSA ECOCELL S018A Selective Soldering Machine

Hungary, 3526 Miskolc

ERSA ECOCELL S018A Selective Soldering Machine

23/01/2025 09:06

Bids: 0

6,000 €

Spain, 08295 Sant Vicenç de Castellet

COMMERSALD ROBO 9 Welding Machine

30/01/2025 10:56

Bids: 0

2,500 €

SUPR HGK-5 5T Drum and Pipe Welding Rotator

Hungary, 6200 Kiskőrös

SUPR HGK-5 5T Drum and Pipe Welding Rotator

23/01/2025 09:24

Bids: 0

2,500 €

Italy, 25011 Calcinato

CEBON MIG-400 PL Wire Welding Machine

04/02/2025 09:46

Bids: 0

1,390 €

Italy, 25011 Calcinato

CEBON MIG-400 PL Wire welding machine

22/01/2025 15:17

Bids: 0

1,240 €

Italy, 25011 Calcinato

CEBON MIG-400 PL Wire welding machine

22/01/2025 14:09

Bids: 0

1,240 €

REHM MEGA PULS FOCUS 380 W MIG/MAG Pulse Welding Machine

Hungary, 9155 Lébény

REHM MEGA PULS FOCUS 380 W MIG/MAG Pulse Welding Machine

23/01/2025 09:17

Bids: 0

900 €

MACGREGOR (AMADA) M3-40-1 High performance resistance welding power supply

Hungary, 9200 Mosonmagyaróvár

MACGREGOR (AMADA) M3-40-1 High performance resistance welding power supply

28/01/2025 11:16

Bids: 0

800 €

MACGREGOR M2-40-1 DC Resistance Welding Power Supplies 3pcs

Hungary, 9200 Mosonmagyaróvár

MACGREGOR M2-40-1 DC Resistance Welding Power Supplies 3pcs

28/01/2025 09:55

Bids: 0

750 €

Hungary, 8420 Zirc

SILA ZP16 Spot welder

27/01/2025 12:02

Bids: 0

300 €

Italy, 25011 Calcinato

CEBON MIG-315PL Wire Welding Machine

23/01/2025 11:35

Bids: 0

490 €

Italy, 25011 Calcinato

CEBON MIG-315PL Wire Welding Machine

23/01/2025 11:30

Bids: 0

490 €

Italy, 25011 Calcinato

CEBON MIG-315PL Wire Welding Machine

22/01/2025 13:05

Bids: 0

490 €

Germany, 40724 Hilden

CASTOLIN CastoMIG 250 C Welding machine

400 €

Germany, 40724 Hilden

CLOSS GL 152 T Welding machine

350 €

Germany, 40724 Hilden

CLOSS GLC 216 Welding machine

300 €

Germany, 40724 Hilden

CLOOS GL 200 T Welding machine

300 €

Italy, 25011 Calcinato

CEBON INVERTER MIG-165 SP Wire Welder

04/02/2025 09:25

Bids: 0

295 €

Germany, 77830 Bühlertal

Laser welding machine

06/02/2025 12:22

Bids: 2

290 €

Hungary, 8420 Zirc

REHM sinergic 354 Welding device

27/01/2025 12:29

Bids: 0

250 €

Hungary, 8420 Zirc

REHM SINERGIC 354 Welding device

27/01/2025 12:28

Bids: 0

250 €

WELD-IMPEX Weldi-MIG 320 PLus Welding device

Hungary, 8420 Zirc

WELD-IMPEX Weldi-MIG 320 PLus Welding device

27/01/2025 12:23

Bids: 0

250 €

Germany, 74193 Schwaigern

Clamping table

29/01/2025 12:51

Bids: 1

180 €

Germany, 21514 Büchen

ESTA SRT Mobile suction device

20/01/2025 11:52

Bids: 0

200 €

Hungary, 8420 Zirc

WELD-IMPEX Weldi-MIG 320 Welding device

27/01/2025 12:25

Bids: 0

170 €

Hungary, 8420 Zirc

WELD-IMPEX MIG 300 Welding device

27/01/2025 12:24

Bids: 0

170 €

Germany, 40724 Hilden

DALEX CGL 200 Welding machine

150 €

Germany, 74193 Schwaigern

LORCH IT 252 G TIG welding machine

29/01/2025 09:44

Bids: 4

120 €

Germany, 04895 Falkenberg

L-TECH MIG 300 EC welding machine

30/01/2025 15:16

Bids: 0

140 €

Germany, 76437 Rastatt

Welding table without contents

29/01/2025 13:58

Bids: 0

120 €

Germany, 74193 Schwaigern

Lot welding rod

29/01/2025 09:46

Bids: 1

65 €

Germany, 74193 Schwaigern

DALEX 2 high-current welding machines

29/01/2025 09:45

Bids: 1

120 €

Germany, 32791 Lage

ESS MIG-MAG 402 M welding machine

23/01/2025 16:00

Bids: 0

110 €

CASTOLIN EUTECTIC CASTOTIG 2000 Mobile TIG welding machine with accessories

Germany, 9105 Erlangen

CASTOLIN EUTECTIC CASTOTIG 2000 Mobile TIG welding machine with accessories

23/01/2025 13:34

Bids: 9

170 €

Spain, 08295 Sant Vicenç de Castellet

COMMERSALD KOY PTA330 Equipo de Soldar

30/01/2025 10:18

Bids: 0

90 €

ESAP POWER KOMPAKT 250 gas-shielded arc welder

Germany, 01561 Ebersbach

ESAP POWER KOMPAKT 250 gas-shielded arc welder

21/01/2025 11:09

Bids: 3

100 €

Czech Republic, 435 42 Litvínov 8

EINHELL Lot Welding Devices (2 pcs.)

28/01/2025 11:35

Bids: 0

80 €

Germany, 52511 Geilenkirchen

ELMATECH MIDISPOT VISION AV spot welder

22/01/2025 10:40

Bids: 0

80 €

Germany, 52511 Geilenkirchen

ELMATECH MIDISPOT VISION AV Spot welder

22/01/2025 10:38

Bids: 0

80 €

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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.