Welding Machines

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Welding Machines

85 used machines found

Welding: used machines, accessories & rotary tables

Top offers: Welding Machines

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TIG Welding System
Erkelenz
on request
anytime
MAG Orbital Welding System
Erkelenz
on request
anytime
Opportunity
BETOX Svetbord 30 Welding Rotary Table
Arnhem
0 Bids
14,000 €
02/05/2018 10:15
Opportunity
DEUMA DK 15000 Welding Rotary Table
Arnhem
0 Bids
9,000 €
02/05/2018 12:38
Top lot
CARPANO / CODESOL CSBMGD 2x2 Welding equipment for tanks
Linares
1 Bid
9,000 €
10/05/2018 11:29
Top lot
DSI LASER AL 100 Laser Welding Device
Meßkirch Ringg…
0 Bids
8,000 €
15/05/2018 10:09
ADOLFI PSK-20T Welding Positioner
Zona Industria…
0 Bids
5,900 €
15/05/2018 12:54
ADOLFI PSK-10T Welding Positioner
Zona Industria…
0 Bids
5,700 €
closed
ADOLFI PSK-10T Welding Positioner
Zona Industria…
0 Bids
5,700 €
15/05/2018 10:49
Opportunity
HERRMANN Ultraline Ultrasound Welding Machine
Ebenweiler
0 Bids
5,400 €
02/05/2018 10:52
Top lot
HAANE HDV 10 x 500 Rotary Welding Table
Erkelenz
12 Bids
4,600 €
03/05/2018 09:36
Opportunity
LINCOLN ELECTRIC Power Wave S500 CE Welder with Accessories
Esbjerg
0 Bids
3,500 €
25/04/2018 11:22
Top lot
HAANE B 4,1/7/7x4,2/4,2/4,2x75 Rotary Welding Table
Erkelenz
3 Bids
2,600 €
03/05/2018 09:43
CATERPILLAR CW 55 / 55 s Welding Rotary Table
Arnhem
1 Bid
1,800 €
02/05/2018 12:00
ADOLFI HPT-300 Welding Positioner
Zona Industria…
0 Bids
1,670 €
15/05/2018 09:54
UWM UWM 2 Welding table
Velen-Ramsdorf
0 Bids
1,590 €
closed
Welding Turning Device
Meßkirch Ringg…
1 Bid
1,500 €
15/05/2018 11:19
TELWIN SUPERIOR TIG 242 Welder
Vicopisano (Pisa)
0 Bids
1,400 €
11/05/2018 13:14
SVETSARE 512.20 Welding Rotary Table
Arnhem
2 Bids
1,300 €
02/05/2018 12:08
LINCOLN ELECTRIC EW 260 TC Welder
Vicopisano (Pisa)
0 Bids
1,200 €
11/05/2018 13:15
UWM UWM 0,5 Welding turntable
Velen-Ramsdorf
0 Bids
1,090 €
closed
CODESOL CP 2x300 Welding equipment for tanks
Linares
1 Bid
1,000 €
10/05/2018 11:28
CODESOL CP 2x300 Welding equipment for tanks
Linares
1 Bid
1,000 €
10/05/2018 11:30
TECNA 4609 N Point welder
Vicopisano (Pisa)
1 Bid
1,000 €
11/05/2018 13:09
FRANZAN STV Point welder
Vicopisano (Pisa)
0 Bids
1,000 €
11/05/2018 13:10
ISEA SP Point welder
Vicopisano (Pisa)
0 Bids
800 €
11/05/2018 13:16
TEKA STRONGMASTER BIA Welding Fume Extractor
TEKA STRONGMASTER BIA Welding Fume Extractor
Wald
0 Bids
750 €
15/05/2018 11:31
TEKA STRONGMASTER BIA Welding Fume Extractor
Wald
0 Bids
750 €
15/05/2018 11:00
TEKA STRONGMASTER BIA Welding Fume Extractor
TEKA STRONGMASTER BIA Welding Fume Extractor
Wald
0 Bids
750 €
15/05/2018 11:01
TECH-UP TMX 190 Welder
Ispra
0 Bids
600 €
23/05/2018 10:49
CEMSA DELTA Spot Welding Machine
Sant'Ippolito
1 Bid
500 €
closed
Hot lot
Lot of Welding Accessories
Erkelenz
17 Bids
420 €
03/05/2018 09:41
OERLIKON Argonarc AU 360 WR Welding Machine
Balsthal
0 Bids
400 €
15/05/2018 15:03
Opportunity
Welding Rotary Device
Arnhem
0 Bids
400 €
02/05/2018 12:50
Smoke Extractor
Smoke Extractor
Zona Industria…
0 Bids
390 €
closed
ANTONIO DÍAZ Burning Machine with Blowtorches
Villacañas
0 Bids
350 €
09/05/2018 11:03
CLOOS GIC 403 PA-TS Welding unit
Velen-Ramsdorf
0 Bids
300 €
closed
NIMAK Puls-MIG 450 Welding Source
Duisburg
3 Bids
290 €
25/04/2018 10:25
LINCOLN CV 450 T Welding Machine
Arnhem
2 Bids
270 €
02/05/2018 12:49
ESAB WELDG3SI1 Lot of Welding Wire
Zona Industria…
0 Bids
270 €
15/05/2018 10:19
ESAB WELDG3SI1 Lot of Welding Wire
ESAB WELDG3SI1 Lot of Welding Wire
Zona Industria…
0 Bids
270 €
15/05/2018 12:19
ESAB WELDG3SI1 Lot of Welding Wire
ESAB WELDG3SI1 Lot of Welding Wire
Zona Industria…
0 Bids
270 €
15/05/2018 15:09
DALEX A 3112 Spot Welding Tongs
Hamburg
9 Bids
260 €
26/04/2018 15:06
FUCHS Mkflc1 Welding Dust Extraction Unit
Arnhem
1 Bid
250 €
02/05/2018 11:47
EWS ELECTRONIC WELDING SYSTEMS Welder
Altopascio
3 Bids
150 €
11/05/2018 11:16
Opportunity
BRANSON Welding Machine
Arnhem
0 Bids
150 €
02/05/2018 11:35
Lot of Welding Wire
Lot of Welding Wire
Arnhem
1 Bid
150 €
02/05/2018 14:03
CETAS SF440 COMPATTA Welder
Altopascio
2 Bids
120 €
11/05/2018 11:19
  

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Used welding machines for sale at Surplex.com

Index

  1. What are welding machines used for?
  2. How does a welding machine operate?
  3. Different types of welding machines
  4. The use of welding machinery in a variety of processes
  5. Where to find a quality second-hand welding machine?
Used mobile 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.

Used welding in a warehouse

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.

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