Spot and projection welders

- 80 to 315 kVA

 

Spot and projection welders MAIN WELDER FEATURES
  • Modular design of mechanical structure, arms, brackets, cylinders.
  • Cylinder with chrome plated stem for heavy duty works and long life; adjustable anti-rotation device.
  • Lubrication free pneumatic components to eliminate oil mist and to protect the environment.
  • Head descent without pressure for set up and service.
  • Double-stroke cylinder with key control.
  • Built-in compressed air filter unit and tank. Compressed air disconnection device.
  • Electrodes speed control valves, shock absorber for end of stroke and air discharge silencers assuring the minimum noise.
  • Two stage electric foot control for clamping and welding pieces only if correctly positioned. Standard on spot welders, on request on projection welders.
  • Preconnected for additional double stage electric foot control for the direct recalling of welding program no.2 (not on units equipped with rotary selector recall).
  • Water-cooled transformer, plates, electrode-holders and electrodes; transformer with epoxy resin coated windings.
  • Synchronous SCR contactor insulated from the cooling water circuit with protection thermostat.
  • Standard on all models: two-hand safety control with timer assuring the best safety, and removable key selector,. The two-hand control push-buttons are standard on projection models only (thay are available on request on spot welder models).
  • Emergency push-button to stop the machine immediately.
  • Digital welding control with welding current direct reading: TE185 direct current standard, E250-TE500-TE1000 on request.


TECHNICAL DATA

Nominal power at 50% 80 100 125 160 200 250 315
Body A-B A-B A-B A-B-C A-B-C B-C B-C
Spot welder • • • - - -  
Projection welder • • • • • • •
Maximum welding power * kVA 200 280 340 420 560 750 970
Short circuit current * kA 30 35 39 53 63 75 88
Maximum welding current on steel * kA 24 28 31 42 50 60 70
Thermal current 100% A 6800 7000 8400 11300 12800 14200 16200
No load secondary voltages V 8.3
7.5
6.8
6.1		 10
8.9
8
7.1		 10.5
9
8.2
7.4		 10
8.9
8
7.1		 11.1
10
8.9
8		 12.5
11.1
10
8.9		 13.8
12.5
11.1
10
Supply voltage 50Hz ** V 400 400 400 400 400 400 400
Cables section L=30 m mm2 70 95 2 x 50 2 x 70 2 x 95 2 x 120 2 x 150
Delayed fuses A 160 200 250 315 400 500 630
Cylinder N°/daN 4/736
6/1206
7/1885		 4/736
6/1206
7/1885		 6/1206
7/1885
8/3388		 6/1206
7/1885
8/3388
9/2945		 6/1206
7/1885
8/3388
9/2945		 7/1885
8/3388
9/2945
10/5509		 7/1885
8/3388
9/2945
10/5509
Compressed air supply bar 6.5 6.5 6.5 6.5 6.5 6.5 6.5
Air supply hose  mm 25 25 25 25 25 25 25
Water cooling  l/min 8 8 10 10 10 12 12
Water cooling hose  mm 25 25 25 25 25 25 25


* Values subject to variations according to frame and L and D lengths
** Different voltages and frequencies on demand

AVAILABLE ON DEMAND:

  • Rotary selector for recalling the welding programs.
  • Insulated serial interface RS232, enabling the connection with a serial printer or a personal computer for production data recording.
  • Prismatic stem cylinder in tempered steel and roller guide.
  • Additional foot control to recall program No. 2 (not available with rotary selector recall).
  • Two-hand safety control on pedestal, adjustable height (standard on projection welders).
  • Proportional valve.
  • Pneumatic circuit with low force squeeze and forging.

 MAIN WELDER CONFIGURATIONS

Projection welders 
Frame type A B C
Arms length D mm 250 400 250 400 400 600
Cylinder N° 4-6-7 4-6 6-7-8-9 6-7-8-9 8-9-10 8-9
Projection plates
dimensions
slots number/centreline 

mm
N°/mm

150x200
2/63

150x200
2/63

200x200
2/63

250x250
4/63

380x380
6/63

250x250
4/63

 

 

Spot welders
Frame type A B C
Arms length L mm 500 800 800 1000 1500 800 1000 1600
Cylinder N° 4-6 4 4-6-7 4-6 4 6-7-8-9 6-7 6
Electrode holder diameter mm 32 32 32 32 32 40 40 40
Arms diameter mm 80 80 100 100 100 120 120 120


The combinations of: structure, power, cylinder and lengths L - D are to be agreed with our Technical Department

CYLINDERS

Type N° 4 6 7 8 9 10
Diameter mm 125 160 200 200x2 250 250x2
Force
at 6 bar
at 1 bar

daN
daN

736
123

1206
201

1885
314

3388
565

2945
491

5509
918
Stroke
total
adjustable

mm
mm

100
0-80

100
0-100

150
0-120

150
0-120

150
0-120

150
0-120
Cilindric stem diameter mm 70 90 100 100 - -
Prismatic stem mm - 86x86* 86x86* 86x86* 96x96 96x96

* On request

Specifications subject to change without notice.