MODULAR SYSTEM 

Large range of modular welders planned to carry out multi-spot machines. These welders have been designed mainly to simplify the projects and to reduce the time necessary to accomplish special welders. Each welder can operate independently. When all the welders are connected in cascade mode, it is possible to carry out welding sequences without any outside supervision. The compact dimensions of these welders, assembled with transformer, electronic control, SCR, cylinders, pneumatic system and cooling circuit, allow to carry out versatile multi-spot systems which can be modified with a minimum expense. By sharing the connection of the welders on 3 phases and by welding in sequence it is possible to carry out high productivity machines with minimum power supply from the electric mains.

TWIN SPOT WELDING UNIT - ITEM 4040-4043 - 32 kVA AT 50%  

4040 photo

MAIN WELDER FEATURES
bullet Twin spot welding unit.
bullet Two version: with or without  TE93 microprocessor welding control unit.
bullet Different electrode holders available for different working exigencies.
bullet Water-cooled transformer, with epoxy resin coated windings.
bullet Water cooled electrode-holders and electrodes.
bullet Synchronous SCR contactor insulated from cooling water circuit with protection thermostat.(only 4040-4042)
bullet Double stage pneumatic cylinder, lubrication free against oil mist.
 

TECHNICAL DATA

ITEM 4040 4041 4042 4043
Built in electronic timer TE93 • - • -
Nominal power at 50% kVA 32 32 32 32
Maximum welding power kVA 96 96 96 96
Short circuit current kA 20 20 20 20
Maximum welding current on steel kA 16 16 16 16
Thermal current 100% A 3800 3800 3800 3800
No load secondary voltage V 5.9 5.9 5.9 5.9
Supply voltage 50Hz * V 400 400 400 400
Cables section L=10 m mm2 10 10 10 10
Cables section L=30 m mm2 25 25 25 25
Delayed fuses A 63 63 63 63
           
Minimum gap mm 38 38 38 38
Maximum gap mm 150 150 150 150
           
Max. electrode force (6 bar)  daN 2x260 2x260 2x260 2x260
Max. electrode stroke mm 50 50 80 80
           
Compressed air supply bar 1-6 1-6 1-6 1-6
Air for 1000 spots (6 bar)           
 stroke 20 mm Nm3 2 2 2 2
max. stroke Nm3 5.2 5.2 8.2 8.2
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 8 8 8 8
welding current kA 15 15 15 15
working rating in welds/min   15 15 15 15
           
Net weight (approximately) kg 69 66 70 67
* Different voltages and frequencies on request

It is available a separated transormer, to be used with items 4041 and 4043 only, to build a push-pull welding system.
 

ITEM 4044 PHOTO Item 4044
Nominal power at 50% kVA 25
Supply voltage 50Hz * V 400
No load secondary voltage V 3.8
Thermal current 100% A 4600
Cables section L=10 m mm2 10
Delayed fuses A 50
 

APPLICATION EXAMPLES

 

ELECTRODE HOLDERS AND ACCESSORY (TO BE ORDERED SEPARATELY)

Item 4072 Item 4072 - Pair of electrode-holders, long type (H= 75 mm) with electrodes item 4720, total height about 100 mm. Electrodes taper diameter 18 mm.
Item 4073 Item 4073 - Pair of electrode-holders, short type (H= 50 mm) with electrodes item 4719, total height about 100 mm. Electrodes taper diameter 18 mm
Item 4021 Item 4021 - Electrode holders pair, long type (H= 75 mm) with electrodes item 8701, total height about 115 mm. Electrodes taper diameter 19.05 mm.(3/4") BS807
Item 4074 Item 4074 - Pair of electrode-holders with knife type electrodes
Item 4076 Item 4076 - Interconnection cable L=1,2m 
(Items 4040 and 4041 are supplied equipped with this cable)
Item 4077 Item 4077 - Filter-regulator group with gauge, for connection of max 2 units
Item 4078 Item 4078 - Male plug, 6 contacts+ground, for the connection of welding units control signals

 

Specifications subject to change without notice.