Items 4625N-4630N - Linear action spot welders

- Linear action spot welders - 35-50 kVA

MAIN WELDER FEATURES

Linear action pneumatic spot welder with TE90 microprocessor welding control unit.
Optional TE 180 and TE 185 control units.
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.
All models have been designed for both single and automatic cycle.
Two stage electric foot control for clamping and welding pieces only if correctly positioned.
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.
Cylinder with chrome plated stem for heavy duty works and long life. Adjustable anti-rotation device.
Cylinder with double stroke with hand control.
Electrodes force adjustable by means of a protect built-in compressed air filter unit with gauge-pressure, with semi-automatic moisture discharging.
Electrodes speed regulators (both opening and closing), cylinder end-stroke shock absorber, and silencers for compressed air discharge assuring the minimum noise.

ITEMS 4625N-4626N

Arms gap 280 mm, arms depth 400 mm.

ITEMS 4629N-4630N

Adjustable arms gap from 170 to 500 mm, enabling to adjust the welder according to the work exigencies. Arms depth 500 mm.

TECHNICAL DATA

ITEM		4625N	4626N	4629N	4630N
Nominal power at 50%	kVA	35	50	35	50
Maximum welding power	kVA	67	84	64	84
Short circuit current	kA	15.5	17	14.5	17
Maximum welding current on aluminium	kA	14.1	15.4	13.2	15.4
Maximum welding current on steel	kA	12.4	13.6	11.6	13.6
Thermal current 100%	A	4500	5700	4500	5700
No load secondary voltage	V	5.4 4	6.1	5.4 4	6.1
Supply voltage 50Hz *	V	400	400	400	400
Cables section L=30 m	mm²	16	35	16	35
Delayed fuses	A	63	100	63	100
Insulation class		F	F	F	F

Electrodes throat depth	mm	400	400	500	500
Max. electrode force (6 bar)	daN	300	300	300	300
Electrode stroke	mm	5-80	5-80	5-80	5-80
Double stroke	mm	60	60	60	60

Minimum arms gap	mm	280	280	175	175
Maximum arms gap	mm	280	280	500	500

Arms diameter	mm	50	50	50	50
Electrode-holders diameter	mm	25	25	25	25
Standard electrodes cone diameter	mm	14.8	14.8	14.8	14.8

Compressed air supply	bar	6.5	6.5	6.5	6.5
Air for 1000 spots (6 bar)
with 20 mm working stroke and operating double stroke	Nm³	1.7	1.7	1.7	1.7
with maximum working stroke	Nm³	5.4	5.4	5.4	5.4
Air supply hose	mm	8	8	8	8
Water cooling	l/min	4	4	4	4

Aerial noise produced	dB(A)	< 70	< 70	< 70	< 70
Measure conditions
working stroke	mm	20	20	20	20
welding time	cycles	17	23	20	24
welding current	kA	11.6	12.7	10.9	12.4
working rating in welds/min		15	15	15	15

Net weight (approximately)	kg	210	215	215	220

* Different voltages and frequencies on request

Specifications subject to change without notice.