Features
Chrome-Copper Electrode Holders
The chrome-copper electrode holders, designed for straight and angled fittings, provide a longer life span for consumables and heavy-duty applications.
Adjustable Electrode Performance
The electrode stroke and force can be adjusted to suit your needs. A microswitch will start the welding cycle when the preset value is reached.
Built to Last
The transformer, arms and electrodes are water-cooled, with an epoxy resin coating on the transformer, for a longer working time and lifespan. It also comes fitted with a TECNA TE101 microprocessor control unit.
Adjustable Arms & Foot Pedal
The foot pedal and arm lengths are adjustable, allowing for more flexibility while working.
Specifications
Primary Input Voltage
415V Three-Phase
Supply Plug
Unplugged (20A Recommended)
Nominal Power @ 50% (kVA)
25
Maximum Welding Power (kVA)
68
No Load Secondary Voltage (V)
4.6
Maximum Short Circuit Current (kA)
18
Maximum Welding Current on Light Alloys (kA)
16.3
Maximum Welding Current on Steel (kA)
14.4
Thermal Current 100% (A)
3800
Cables Section L=10m (mm2)
16
Cables Section L=30m (mm2)
16
Delayed Fuses (A)
50
Short Circuit Current With L Maximum (kA)
13
Arm Diameter (mm)
40
Maximum Arm Gap (mm)
440
Minimum Arm Gap (mm)
125
Electrode Holder Diameter (mm)
22
Electrode Cone Diameter (mm)
14.8
Water Cooling (L/min)
3.7
Noise Level (dBA)
<70
Weight (kg)
145
Downloads
TECNA 4640, 4643 & 4648 Spot Welder Manual
1.59 MB
TECNA 4640 & 4643 Info Sheet
1.42 MB
Spot Welders Comparison
0.66 MB