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UniMig 25 KVA Pneumatic Pedestal Spot Welder (Italian Made) [4648]

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RRP $9,913.90


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Quick Overview
Air operated Three Phase 25KVA Pedestal Spot welder

Product Details

UniMig 25 KVA Pneumatic Pedestal Spot Welder (Italian Made) [4648]

Tecna has long been considered the international leader in Spot Welding. Tena's range of Pedestal Spot Welders are Italian made to the highest quality standards and are serviced and distributed in Australia by the highly regarding UniMig. Tecna's range of Spot Welders can all be customised to ensure maximum efficiency and reliability.

  • The new stationary ergonomic frame designed by TECNA helps to facilitate the operator's work.

  • The control unit has been positioned frontally to allow the operator to view the welding data even during the working cycle.


  • Arms adjustable in length allowing a better working flexibility.

  • Chrome-copper electrode-holders for long life and heavy duty service, designed for straight and angled fitting.

  • Adjustable electrode stroke.

  • Epoxy resin coated transformer.

  • Water-cooled transformer, arms and electrodes.

  • Microprocessor control unit TECNA TE90.

  • The air operated lubrication free cylinder eliminates oil mist.

  • Electrode force adjustment with air filter reducer with gauge.

  • Semi-automatic drainage system.

  • Electrode speed control valves, shock absorber for cylinder's end of stroke and air discharge silencers.

  • Two-stage electric foot pedal, that besides its normal use in automatic and single spot mode, allows the operator to bring the pieces together and to weld them only when correctly positioned.

  • Pre-arrangement for the connection of a second electric two-stage foot pedal item 70284.

  • The addition of the second foot pedal allows to recall two different adjustments of time- current. This function is helpful when different kinds of welding are to be performed on the same piece.


Nominal power at 50%kVA 25
Maximum welding powerkVA 68
No load secondary voltageV 4.6
maximum short circuit currentkA 18
Maximum welding current on steelkA 14.4
Thermal current 100%A3800
Supply voltage 50Hz *V400
Cables section L=10 mmm216
Cables section L=30 mmm216
Delayed fusesA50
Min. electrodes throat depthmm230
Max. electrode force (6 bar)daN240
Electrode strokemm8-44
Max. electrodes throat depthmm550
Max. electrode force (6 bar)daN115
Electrode strokemm15-85
Short circuit current with L max.kA13
Arms diametermm40
Electrode-holders diametermm22
Standard electrodes cone diametermm14.8
Compressed air supplybar6.5
Air for 1000 spots (6 bar)Nm34.3
Water coolingl/min3.7
Aerial noise produceddB(A)< 70
Measure conditions
working strokemm20
welding timecycles14
welding currentkA13.5
working rating in welds/min10
Net weight (approximately)kg143


Additional Information

Weight No
Product Manual 4640_4644INFO.pdf
Unit Type Unit Type
Amperage No
product_type No
Suitable For No
Bar No
Flow Rate Control (FRC) No
Frimin No
Float No
Horse Power No
Kilowatts No
Pounds / Square Inch (PSA) No
Powered No
Taps No
Volts No
Type No
Draw Off No
Watts No
Litres No
Casin Material No
Max Flow LMNI No
Particle Size No
Use No
Approval No
Flow Control No
Max Flow L/Hr No
Plumbing No
Lid No
Diameter No
Style No
Width No
Size Range No
Mount No
Part Number 4648
Primary Input Voltage No
Welding Current No
Voltage Steps No
Duty Cycle 40 Deg C No
Welding Voltage Range DC No
Overload Protection No
Reverse Polarity No
Wire Spool Size (kg) No
Wire Size (mm) No
Dimensions (mm) No
Weight (kg) Weight (kg)
Input Power No
Warranty Stamps
Embed Code No
Embed Code No
Embed Code No
Embed Code No
Embed Code No
Item Height No
Item Width No
Item Length No
Item Weight No
Item Height No
Item Width No
Item Length No
Item Weight No


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