Welding Machines

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Welding Machines

81 used machines found
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Laser Welding Machine for Solar Collector Absorbers
Gelsenkirchen
on request
anytime
Welding plant with KUKA Robots
Neuss
on request
anytime
Opportunity
Robot Welding System (System 35)
Trabitz
0 Bids
5,600 €
11/05/2017 10:19
Opportunity
FEINMECHANIK Robot Welding System (System no. 7)
Trabitz
0 Bids
4,800 €
11/05/2017 09:19
Opportunity
Robot Welding System (System no. 5)
Trabitz
0 Bids
4,800 €
11/05/2017 13:17
Opportunity
Robot Welding System
Trabitz
0 Bids
4,800 €
11/05/2017 13:47
Top lot
ROFIN SWMP Laser Welding Machine
Reinach AG
24 Bids
4,500 €
02/05/2017 12:29
Robot Welding System (System no. 12)
Trabitz
1 Bid
4,200 €
11/05/2017 11:09
Opportunity
Robot Welding System (System no. 8)
Trabitz
0 Bids
4,200 €
11/05/2017 11:18
Opportunity
Robot Welding System
Trabitz
0 Bids
4,200 €
11/05/2017 13:57
Opportunity
Robot Welding System (System no. 31)
Trabitz
0 Bids
3,800 €
11/05/2017 11:47
Opportunity
Robot Welding System (System no. 33)
Trabitz
0 Bids
3,800 €
11/05/2017 12:57
Opportunity
Robot Welding System (System no. 2)
Trabitz
0 Bids
3,800 €
11/05/2017 15:35
Robot Welding System (System 28)
Trabitz
4 Bids
3,400 €
11/05/2017 10:09
Opportunity
Robot Welding System (System no. 18)
Trabitz
0 Bids
3,400 €
11/05/2017 13:27
Robot Welding System (System 26)
Trabitz
2 Bids
3,000 €
11/05/2017 09:39
DUMETA HB 10 Welding turntable
Velen
0 Bids
2,950 €
19/05/2017 12:11
Robot Welding System
Trabitz
1 Bid
2,500 €
11/05/2017 09:49
Robot Welding System (System no. 27)
Trabitz
1 Bid
2,400 €
11/05/2017 10:29
Robot Welding System (System no. 39)
Trabitz
1 Bid
1,800 €
11/05/2017 13:07
Robot Welding System (System no. 4)
Trabitz
1 Bid
1,600 €
11/05/2017 10:59
PECO 4000 Sheet Welding Machine
Duisburg
0 Bids
1,500 €
17/05/2017 10:18
Opportunity
Robot Welding System
Trabitz
0 Bids
1,200 €
11/05/2017 11:37
Hot lot
KRALE Robot Welding System
Trabitz
15 Bids
950 €
11/05/2017 09:29
Robot Welding System (System no. 16)
Trabitz
4 Bids
950 €
11/05/2017 11:28
UWM UWM 3 Welding table
Velen
0 Bids
950 €
19/05/2017 11:33
Hot lot
EN-KO Welding Rotary Table
Trabitz
18 Bids
710 €
11/05/2017 16:53
COSTRUZIONI SPECIALI MASI Welding System
Spilimbergo
0 Bids
700 €
closed
Automated rotary welding table
Herzberg am Harz
0 Bids
600 €
18/05/2017 11:03
UWM UWM 0,5 Welding turntable
Velen
0 Bids
520 €
19/05/2017 12:14
Opportunity
Projection Welding Machine
Neenstetten
0 Bids
500 €
10/05/2017 10:22
OERLIKON ADW 254 Welding Machine
Prackenbach
0 Bids
500 €
closed
Welding rotary table
Velen
0 Bids
450 €
19/05/2017 11:16
DALEX PMS 16 Spot Welding Machine
Herzberg am Harz
0 Bids
300 €
18/05/2017 11:02
TEKA Filtoo welding fume extraction
Velen
2 Bids
250 €
19/05/2017 12:04
KUKA EP 500/30 Spot Welding Machine
Trabitz
2 Bids
240 €
11/05/2017 14:25
Extraction Station
Waghäusel
0 Bids
220 €
Not started
TEKA STRONGMASTER BIA Welding Dust Extraction
Billerbeck
0 Bids
200 €
30/05/2017 15:02
AWAG Welding Unit
Trabitz
5 Bids
190 €
11/05/2017 10:02
ESS PS 3/T Rotary Welding Table
Trabitz
5 Bids
160 €
11/05/2017 10:48
ESS 220 G Welding Machine
Zimmern
0 Bids
150 €
16/05/2017 14:57
ESS 2050 Welding Machine
Zimmern
0 Bids
150 €
16/05/2017 14:58
ESS 2050 Welding Machine
Zimmern
0 Bids
150 €
16/05/2017 14:59
GARANT Q 350 M Welding Power Source
Trabitz
6 Bids
130 €
11/05/2017 09:43
Heavy Welding Plate
Trabitz
2 Bids
130 €
11/05/2017 16:20
L-TEC TT 160 Mobile Rotary Welding Table
Waghäusel
0 Bids
120 €
Not started
Welding Table
Waghäusel
0 Bids
95 €
Not started
BEMA Q 350 M Welding Power Source
Trabitz
2 Bids
90 €
11/05/2017 09:45
Lot of Control Units for WIG Welding Systems
Trabitz
4 Bids
90 €
11/05/2017 09:52
Pallet Welding Electrodes
Waghäusel
0 Bids
85 €
Not started
Opportunity
KAISER + KRAFT Q 350 M Welding Power Source
Trabitz
0 Bids
80 €
11/05/2017 09:37
Opportunity
GARANT Q 500 M Welding Power Source
Trabitz
0 Bids
80 €
11/05/2017 09:38
Opportunity
Q 350 M Welding Power Source
Trabitz
0 Bids
80 €
11/05/2017 09:42
Q 350 M Welding Power Source
Trabitz
1 Bid
80 €
11/05/2017 09:44
2 Welding Tables
Waghäusel
0 Bids
75 €
Not started
Welding Table and Workbench
Waghäusel
0 Bids
75 €
Not started
2 Welding Tables
Waghäusel
0 Bids
55 €
Not started
WELDLINE Lot of welding equipment
Stramproy
0 Bids
50 €
closed
Welding Protection Walls
Billerbeck
0 Bids
50 €
30/05/2017 15:21
INE Lot of Welding Wires
Billerbeck
0 Bids
50 €
30/05/2017 15:30
12 Welding Helmets / Welding Masks
Waghäusel
0 Bids
45 €
Not started
Soldering Accessories
Zimmern
1 Bid
40 €
16/05/2017 14:07
Opportunity
GEDORE Welding Power Source
Trabitz
0 Bids
40 €
11/05/2017 09:40
Opportunity
HÄBERLE LSQ 4 Welding Power Source
Trabitz
0 Bids
40 €
11/05/2017 09:46
Opportunity
PLÖßNER LSQ 4 Welding Power Source
Trabitz
0 Bids
40 €
11/05/2017 09:48
Lot of Spare Parts for Welders
Trabitz
2 Bids
40 €
11/05/2017 09:51
Lot of Welding Masks
Waghäusel
0 Bids
40 €
Not started
Opportunity
Steel Welding Table
Trabitz
0 Bids
30 €
11/05/2017 16:51
Opportunity
Welding Table
Trabitz
0 Bids
30 €
12/05/2017 09:45
Opportunity
Welding Table
Trabitz
0 Bids
30 €
12/05/2017 09:59
Opportunity
Welding Table
Trabitz
0 Bids
30 €
12/05/2017 10:02
Opportunity
Welding Table
Trabitz
0 Bids
30 €
12/05/2017 10:03
17 Welding Helmets / Welding Masks
Waghäusel
0 Bids
30 €
Not started
Welding Table
Billerbeck
0 Bids
30 €
30/05/2017 13:18
Lot of Welding Hoses
Trabitz
1 Bid
25 €
11/05/2017 09:50
Opportunity
Welding Table
Trabitz
0 Bids
25 €
11/05/2017 16:52
Welding Accessory Components
Spilimbergo
0 Bids
20 €
closed
13 Welding Helmets
Waghäusel
0 Bids
20 €
Not started
KÜPPERSBUSCH  Electrode dryer
Duisburg
0 Bids
15 €
17/05/2017 10:17
 

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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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