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(03) 9210 0400

UNIMIG PEDESTAL SPOT WELDER Foot operated TECNA4640 Adjustable Arms/ Electrode

In stock
SKU# UMG4640
Special Price $4,849.00 Regular Price $6,720.00
Save 27.84% off

TECNA spot welders are designed to meet every need of spot welding. 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.
  • The pneumatic commands and the compressed air pressure gauge have been placed at the top for easier adjustment and reading.

•    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.


Model No: 4640 
Nominal power at 50%: 16kVA 
Maximum welding power :35 kVA 
No load secondary voltage: 3.4V
Maximum short circuit current: 12.5kA
Maximum welding current on steel: 10 kA 
Thermal current 100%: 3300 A
Supply voltage 50Hz * : 415 V
Cables section L=10 m: 6 mm2
Cables section L=30 m: 10 mm2
Delayed fuses 32 A
Min. electrodes throat depth 230 mm
Max. electrode force (6 bar) 240 daN
Electrode stroke: 8-44 mm
Max. electrodes throat depth : 550mm
Max. electrode force (6 bar): 95 daN
Electrode stroke : 15-85 mm
Short circuit current with L max.  8.4 kA
Arms diameter: 36 mm 
Electrode-holders diameter: 19 mm 
Standard electrodes cone diameter: 12.7 mm
Water cooling: 2.5 l/min 
Aerial noise produced:  < 70 dB(A)
Measure conditions
Working stroke: 20 mm 
Welding time cycles: 21 
Welding current : 9.4 kA 
Working rating in 10 welds/min 
Net weight (approximately) : 135kg 

Important - Delivery: Please ensure that a forklift or tractor with forks is available to unload upon delivery. If you don’t have means to unload, you may be required to pick item up from a designated freight depot. Alternatively a tailgate delivery may be available at an additional cost, please contact seller to confirm.

More Information
New Yes
Dimension Width (cm) 35
Dimension Height (cm) 120
Dimension Length (cm) 70
Warranty 12 months
Condition New
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At Best Buys Online, we always strive to offer you the lowest shipping prices possible.

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PO BOXES : NO parcels above 22kg and/or longer than 1meter can be sent to a PO Box. Signature is required.

1. Goods are shipped once payment is received in full. We strongly advise all customers that they provide a delivery address where someone is available to sign for the goods during business hours. Sometimes, a forklift will be required to unload at the destination. If customers don’t have means to unload, you may be required to pick it up from a designated courier depot, OR pay an extra fee for the tailgate to unload the item when delivering to your nominated address. Please send us a message or call us (03) 9210 0400 to arrange.

2. All courier companies will attempt delivery of your goods once. If no one is home when delivery is being attempted, a note will be left. A re-delivery will incur extra charges. All second deliveries need to be directly organised with the courier company and paid for before goods are delivered.

3. Once in the hands of the couriers, freight times are outside of our control. However all tracking details are forwarded via email upon dispatch and customers are welcome to contact the relevant freight company, or we are happy to attend to any queries you may have.

4. FREE SHIPPING PROMOTION: This only applies to customers in capital cities. Free Shipping does not apply to regional areas. We can send the item to the nearest freight depot, and we will charge you the difference in freight cost to the capital city and your pick-up location. Please call us on (03) 9210 0400 for further information.
PICK-UP OPTION (No Handling Fee applies)

This option allows you to pick up your order from our Melbourne warehouse at no added cost.

Bookings are essential. Collection available at U5/25 Jersey Rd, Bayswater, Vic 3153.

Once your order has been placed, we will contact to let you know when your order will be available for pickup. (Our operating hours are between 8AM to 5PM Monday to Friday and 9am-3pm on Saturday).