Items 3401-3408

- Rocker arm, foot operated, spot welders with TE25 control unit - 12-25 kVA

 

ROCKER ARM, FOOT OPERATED, SPOT WELDERS - ITEMS 3401-3408 - 12 TO 25 kVA AT 50%
MAIN WELDER FEATURES  
  • Adjustable arms up to 320 mm, enabling to adjust the welder according to the work exigencies.
  • Chrome-copper electrode-holders for heavy duty and long life, designed for both straight and angled assembling.
  • Adjustable electrodes stroke, enabling to reach the max. working rate.
  • Water-cooled transformer, with epoxy resin coated windings.
  • Water cooled arms, electrode-holders and electrodes.
  • Synchronous SCR contactor insulated from cooling water circuit with protection thermostat.
  • Adjustable electrodes force, a microswitch starts the welding cycle when the desired pre-set value is reached by operating the foot control.
  • Foot control adjustable in length.



TECHNICAL DATA

ITEM 3401 3406 3407 3408
Nominal power at 50% kVA 12 16 20 25
Maximum welding power kVA 28 32 44 62
Short circuit current kA 10.5 11.8 14 16.5
Maximum welding current on aluminium kA - - - 15.1
Maximum welding current on steel kA 8.4 9.4 11.2 13.2
Thermal current 100% A 2600 3300 3500 3800
No load secondary voltage V 3.2 3.4 4 4.6
Supply voltage 50Hz * V 400 400 400 400
Cables section L=30 m mm2 10 10 10 16
Delayed fuses A 25 32 40 50
           
Min. electrodes throat depth mm 230 230 230 230
Max. electrode force (6 bar) daN 240 240 240 240
Electrode stroke mm 8-44 8-44 8-44 8-44
           
Max. electrodes throat depth mm 550 550 550 550
Max. electrode force (6 bar)  daN 115 115 115 115
Electrode stroke mm 15-85 15-85 15-85 15-85
           
Arms diameter mm 36 36 36 40
Electrode-holders diameter mm 19 19 19 22
Standard electrodes cone diameter mm 12.7 12.7 12.7 14.8
           
Water cooling  l/min 2.5 2.5 3 4
Aerial noise produced dB(A) < 70 < 70 < 70 < 70
Measure conditions          
working stroke mm 20 20 20 20
welding time cycles 19 24 17 14
welding current kA 7.8 8.8 11.2 13.2
working rating in welds/min   10 10 10 10
           
Net weight (approximately) kg 110 110 115 123



* Different voltages and frequencies on request


OPTIONS
3426 Version with adjustable arms length 380-700 mm instead of 230-550 mm. For items 3407-3408 only.
3427 Version with adjustable arms gap from 125 to 420 mm. Fixed arms length 500 mm. For item 3408 only.

ACCESSORIES
3437 Kit to obtain adjustable arms gap for item 3408. Fixed arms length 500 mm, adjustable arms gap from 125 to 420 mm.
3446 Brass arm with reduced overall dimensions, Æ=62, D=36, L1=300, L=380-700 mm (for items 3401-3406-3407).
3447 Brass arm with reduced overall dimensions, Æ=65, D=40, L1=300, L=380-700 mm (for item 3408).
3448 Brass arm with reduced overall dimensions with frontal electrode, Æ=45, D=36, L1=300, L=380¸700 mm (for item 3401-3406-3407).
3449 Brass arm with reduced overall dimensions with frontal electrode, Æ=50, D=40, L1=300, L=380¸700 mm (for item 3408).
3444 Brass arm without electrode-holder, D=36, L=380¸700 mm (for item 3407).
3445 Brass arm without electrode-holder, D=40, L=380¸700 mm (for item 3408).

ELECTRODES FOR ITEMS 3401-3406-3407
3420 Straight electrodes, a pair.
3421 Offset electrodes, a pair.
3422 Angled offset electrodes, a pair.
3423 Bent electrodes, a pair.
3424 Flat electrodes, a pair.
3425 Swivel electrode diameter 30 mm.

ELECTRODES FOR ITEMS 3408
3430 Straight electrodes, a pair.
3431 Offset electrodes, a pair.
3432 Angled offset electrodes, a pair.
3433 Bent electrodes, a pair.
3434 Flat electrodes, a pair.
3435 Swivel electrode diameter 30 mm.

ELECTRODES FOR ARMS ITEMS 3448-3449:
3566 Electrode-holder with electrode item 3567, ring nut and fittings.
3567 Offset electrode for item 3566.
3569 Straight electrode for item 3566.

 

Specifications subject to change without notice.