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MAIN WELDER FEATURES
  • Pneumatic operated suspended gun, with integrated TE300 or TE450 microprocessor welding control unit.
  • High productivity achieved with rational design, reduced dimensions, high welding capacity.
  • High electric efficiency.
  • Reduced installation costs.
  • Totally enclosed, rubber protected for easy and safe operation.
  • Gyro suspension on sealed bearings together with a spring balancer guarantees accurate manoeuvrability at any degree.
  • Rotation locking device.
  • Large selection of arms, enabling to set-up 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 distance, adjustable short working stroke for heavy duty.
  • Temporary extra stroke to reach the areas to be welded.
  • Long working stroke to weld reinforcement ribs, jobs in areas difficult to be reached.
  • 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.
  • Oiless chromium plated cylinder and shaft for heavy duty operation and long life.
TECHNICAL DATA
ITEM 3321 3322 3323 3324 3327 3328
Gunt type L L C L L L
Nominal power at 50% kVA 16 23 23 23 38 38
Maximum welding power kVA 37 65 63 52 110 92
Short circuit current kA 16 21 21 16.5 27 22.5
Thermal current 100% A 4000 4250 4250 4250 5400 5400
No load secondary voltage V 2.8 3.8 3.8 3.8 5 5
Supply voltage 50Hz * V 400 400 400 400 400 400
Cables section L=30 m mm2 10 16 16 16 25 25
Delayed fuses A 32 40 40 40 80 80

Arms spacing

mm

165

165

120

225

155

280

Min. arms length mm 190 190 - 250 250 250
Max. electrode force (6 bar) daN 286 338 300 268 695 695
Working stroke mm 6-25 5-20 5-20 6-25 10-26 10-26

Maximum stroke

mm

30-48

28-40

35-50

35-50

45-60

45-60

Max. arms length mm 650 800 - 650 1030 820
Max. electrode force (6 bar) daN 95 93 - 113 156 196
Working stroke mm 18-72 18-73 - 15-60 40-100 30-75

Maximum stroke

mm

90-140

102-146

-

84-120

165-225

130-175

Compressed air supply bar 6.5 6.5 6.5 6.5 6.5 6.5
Air consumption for 1000 spots at 5 bar Nm3 4 4 4 4 7.5 7.5
Hose inside diameter mm 10 10 10 10 10 10
Water cooling l/min 7 7 7 7 8 8
Max M.S. sheet tickness
with shorter arms mm 3+3 4+4 4+4 3.5+3.5 5+5 5+5
with 508 mm arms mm 1.8+1.8 3+3 - 3+3 3.5+3.5 3.5+3.5
with longest arms mm 1.2+1.2 2+2 - 2+2 2+2 2.5+2.5
cross wire maximum diameter mm 10+10 14+14 14+14 12+12 16+16 16+16
Spots per minute
1+1 class A 66 80 80 80 100 100
1.5+1.5 class A - 32 32 32 44 44
2+2 class A 14 16 16 16 20 20
2.5+2.5 class A - - - - 14 14
3.2+3.2 class B - - - - 8 8
Net weight including cables, hoses, gyro suspension and shortest arms kg 46 52 53 55 76 78
Packing: cardboard box

mm

300x850x550

330x1120x630 760x1050x500
Gross weigth with long arm

kg

57 63 57 57.5 119 117
Spring balancer
short arms: capacity

kg

50-55 55-60 55-60 60-65 80-90 80-90
long arms: capacity

kg

55-60 65-70 - 65-70 95-105 95-105

* Different voltages and frequencies on request

The standard supply includes:

  • Suspended spot gun with the chosen built-in control unit (TE300 or TE450).

  • Earth leakage and circuit breaker switch.

  • Air filter-regulator unit with gauge.

  • Supply cables and hoses 6.5 m length.

Voltage and frequency to be always specified.

Additional equipment on demand:

  • Arms and electrodes: according to tables.

  • Different lengths of supply cables and hoses.

  • Balancers equipped with rotary and insulated hook (option RI).

If the work to be performed requires it, it is available the control from the ground, option B. For capacity see the technical data table.

On demand, the welding machine is equipped with the sectioning device of cables and supply hoses. It allow a quick replacement of the machine on the production lines.

Specifications subject to change without notice.