ROCKER ARM PNEUMATIC SPOT WELDERS - ITEMS 4607N-4611N - 16 TO 25 kVA AT 50%  

MAIN WELDER FEATURES

46XX photo
bullet Rocker arm pneumatic spot welder with TE90 microprocessor welding control unit.
bullet Adjustable arms up to 320 mm, enabling to adjust the welder according to the work exigencies.
bullet Chrome-copper electrode-holders for heavy duty and long life, designed for both straight and angled assembling.
bullet Adjustable electrodes stroke, enabling to reach the max. working rate.
bullet Water-cooled transformer, with epoxy resin coated windings.
bullet Water cooled arms, electrode-holders and electrodes.
bullet Synchronous SCR contactor insulated from cooling water circuit with protection thermostat.
bullet All models have been designed for both single and automatic cycle.
bullet Two stage electric foot control for clamping and welding pieces only if correctly positioned
bullet The welder has been designed for connecting a second two stage electric foot. This additional electric foot enables the recalling of the twin pre-setting for time and current, useful when it is necessary to carry out two different welds on the same piece.
bullet 24 Vcc 5 way solenoid valve.
bullet Double effect pneumatic cylinder, lubrication free against oil mist.
bullet Electrodes force adjustable by means of a protect built-in compressed air filter unit with gauge-pressure, with semi-automatic moisture discharging.
bullet Electrodes speed regulators (both opening and closing), cylinder end-stroke shock absorber, and silencers for compressed air discharge assuring the minimum noise.



TECHNICAL DATA
 

ITEM 4607N 4608N 4609N 4610N 4611N
Nominal power at 50% kVA 16 20 20 25 25
Maximum welding power kVA 35 48 39 68 55
Short circuit current kA 12.5 14.5 12 18 14.5
Maximum welding current on aluminium kA - - - 16.3 -
Maximum welding current on steel kA 10 11.6 9.6 14.4 11.6
Thermal current 100% A 3300 3500 3500 3800 3800
No load secondary voltage V 3.4 4 4 4.6 4.6
Supply voltage 50Hz * V 400 400 400 400 400
Cables section L=30 m mm2 10 10 10 16 16
Delayed fuses A 32 40 40 50 50
             
Min. electrodes throat depth mm 230 230 380 230 380
Max. electrode force (6 bar) daN 240 240 165 240 165
Electrode stroke mm 8-44 8-44 10-60 8-44 10-60
             
Max. electrodes throat depth mm 550 550 700 550 700
Max. electrode force (6 bar)  daN 115 115 90 115 90
Electrode stroke mm 15-85 15-85 15-105 15-85 15-105
             
Arms diameter mm 36 40 40 40 40
Electrode-holders diameter mm 19 22 22 22 22
Standard electrodes cone diameter mm 12.7 14.8 14.8 14.8 14.8
             
Compressed air supply bar 6.5 6.5 6.5 6.5 6.5
Air for 1000 spots (6 bar)             
stroke 20 mm Nm3 2.8 2.8 2.8 2.8 2.8
max. stroke Nm3 4.3 4.3 4.3 4.3 4.3
Air supply hose  mm 8 8 8 8 8
Water cooling  l/min 2.5 3 3 3.7 3.7
             
Aerial noise produced dB(A) < 70 < 70 < 70 < 70 < 70
Measure conditions            
working stroke mm 20 20 20 20 20
welding time cycles 21 17 26 14 20
welding current kA 9.4 11 9 13.5 11
working rating in welds/min   10 10 10 10 10
             
Net weight (approximately) kg 114 122 125 124 127
* Different voltages and frequencies on request

Specifications subject to change without notice.