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Description
Technical data
Accessories

Car body shop repairing works: resistance spot welding of sheets, sheet straightening with spotter (nails or washers), localised sheets heating (carbon electrode), screws and rivets welding, inox sheet-metals spotting.

3481std

(Item 3481 with standard trolley)

Synchronous SCR welding control unit, welding time adjustment in cycles and pulses, welding current adjustment and compensation function.

Items 3484 and 3487 allow simultaneous connection of two tools with automatic recall of the relevant welding program, enabling to save time, avoid errors so to have a simple and safe working process.

The welding stations with epoxy-coated transformers, are supplied equipped with:

Item 3473 - extra-flexible cables L= 1800 mm, 150 mm².
Item 3474 - standard trolley.
Item 5021 - pair of standard arms, L=107 mm.

Available versions:

Item 3481 - Hand operated gun, single program
Item 3484 - Hand operated gun, double program
Item 3487 - Pneumatic gun, double program
Item 3487/W - Pneumatic gun, double program, with support for optional water cooling arms and cables

(Item 3487 complete with optional trolley)

(Item 3487W complete with optional trolley and cooling unit)

TECHNICAL DATA

ITEM		3481	3484	3487	3487/W
Hand operated gun		•	•
Pneumatic gun				•	•
Number of programs		1	2	2	2
Power source		A	B	C	C
Mains voltage/frequency*		400V 50Hz	400V 50Hz	400V 50Hz	400V 50Hz
Phases nr.		1	1	1	1
Nominal power at 50%	kVA	8	8	8	8
Maximum welding power	kVA	35	35	35	35
Short circuit secondary current	kA	6.4	6.4	6.4	6.4
Secondary current at 100%	kA	0.8	0.8	0.8	0.8
No load secondary voltage	V	7	7	7	7
Delayed fuses	A	25	25	25	25
Mains cables section L=15m	mm²	6 x 3	6 x 3	6 x 3	6 x 3
Thermal class		F	F	F	F
Protection degree		IP21	IP21	IP21	IP21
Max. compressed air pressure	bar	-	-	8	8
Net weight	kg	70	70	70	70
Gross weight	kg	85	85	85	85
Package dimensions with standard trolley	cm	48x69x82	48x69x82	48x69x82	48x69x82

* Different voltages and frequencies on request

POWER SOURCES

A = Single program power source used in Item 3481

B = Double program power source used in Item 3484

C = Double program power source used in Items 3487, 3487/W

Standard or upon request accessories

Item 3481	Item 3484	Item 3487	Item 3487/W	Photo	Description
•	•	O	O		Item 3491 18 mm Hand-operated gun with air cooling. Electrode force 30-120 daN. Standard and large gap arms item 5001...5085.
-	-	•	•		Smart gun: patented pneumatic gun with adjustable stroke and double-function trigger: 1) only clamping, 2) welding, when the force at electrodes is correct. Item 8672/S1 18/20 mm Pneumatic gun with air or water cooling. Electrode force 30-150 daN. Standard and large gap air cooled arms item 5001...5085 (Ø 18 mm) using standard diameter adapter 32375. If used on item 3487/W can be equipped with standard and large gap water cooled arms item 5121...5188 (Ø 20 mm).
•	•	•	•		Item 8075 - Multifunction gun for the welding of screws, pins, washers, rivets and single spot. Cable L=2000 mm. Item 7638 - Percussion extractor.
•	•	•	•		Item 3469 - Earth cable with brass clamp, L=2000 mm.
•	•	•	•		Item 7639 Kit of consumable material; electrode for single-spot welding of pins, screws, washers and rivets, carbon electrode for localized heating; star electrode for sheets straightening.
-	-	O	O		Smart gun: patented pneumatic gun with adjustable stroke and double-function trigger: 1)only clamping, 2)welding, when the force at electrodes is correct. Item 8676 20 mm Water cooled pneumatic gun. Electrode force 30-190 daN. Standard and large gap arms item 5121...5185.
O	O	O	O		Item 8651 Air and water cooled twin spot gun.
O	O	O	O		Item 3696 Hand-operated C type gun, with air cooling. Reduced overall dimensions. Cables length 1600 mm. Electrode force 30-80 daN
-	-	O	O		Item 8658 Water cooled pneumatic C type gun. Max. electrode force 180 daN. Equipped with standard arm.
-	-	O	O		FAST GUN Pneumatic C-type gun water-cooled: Item 8659 - C gun without arm Item 8585 Air cooled arm (A) Item 8586 Air cooled arm (B) Item 8587 Air cooled arm (C) Item 3455 Welding cables L=2400mm Water cooled arms available on request
-	-	-	O		Item 3452 - water cooled cables L=1800 mm, 150 mm² section, for L type gun Item 3453 - water cooled cables L=2000 mm, 150 mm² section, for L type gun Item 3454 - water cooled cables L=2400 mm, 150 mm² section, for L type gun Item 3455 - water cooled cables L=2400 mm, 150 mm² section, for C type gun
-	-	-	O		Item 8675 Water-cooling group with pneumatic pump.
O	O	O	O		Item 3489 - Adjustable height trolley with tray and arms holder (also available as option at ordering time - item 3489/O). Item 8656 - Suspension arm, to be used with optional trolley item 3489. Item 9323 - Spring balancer, 6-8 kg, 2000 mm stroke.