Resistance spot welding

We create solid welded joints between the two materials, using the resistance spot welding machines with high pressure on small surface and high electric energy. The most important parameters in the resistance spot welding are the electric current, the resistance, the heat and pressure. In the resistance spot welding, both welding electrodes push the components towards each other. Subsequently, the machine turns on the welding to induce a contact resistance. This leads to thermoelectric heat, resulting in melt. The electrical current is turned off, the liquid material hardens and the welded joint is solid. When cooling the melt, pressure must be maintained to avoid the pores. We use the facilities with different parameters for resistance spot welding of wide-range materials. The thickness as well as the product shape complexity play a role in selecting individual machines. A variety of facilities, such as the model DALEX PL63 OHK, made by BEZ Bratislava BN 20.12, or the model DANUBIUS BP 90.22 meet demanding criteria and requirements for the resistance spot welding.

Resistance spot welding

We create solid welded joints between the two materials, using the resistance spot welding machines with high pressure on small surface and high electric energy. The most important parameters in the resistance spot welding are the electric current, the resistance, the heat and pressure. In the resistance spot welding, both welding electrodes push the components towards each other. Subsequently, the machine turns on the welding to induce a contact resistance. This leads to thermoelectric heat, resulting in melt. The electrical current is turned off, the liquid material hardens and the welded joint is solid. When cooling the melt, pressure must be maintained to avoid the pores. We use the facilities with different parameters for resistance spot welding of wide-range materials. The thickness as well as the product shape complexity play a role in selecting individual machines. A variety of facilities, such as the model DALEX PL63 OHK, made by BEZ Bratislava BN 20.12, or the model DANUBIUS BP 90.22 meet demanding criteria and requirements for the resistance spot welding.

TECNA 3322

TECNA 3322 It is a pneumatic drive point pliers with integrated control unit and it is designed for demanding performance in production operations. They excel mainly in high-performance, space-saving size and low weight. Thanks to these features, the machine can also weld complex parts in the smaller workspaces. Due to convenient handling, the point welding becomes more accurate, easier, faster and more productive. 

The TECNA 3322 welding pliers feature high productivity, efficient design, compact size and high welding power. In the center of gravity, there is a closed bearing allowing the machine to turn around the longitudinal axis easily and comfortably. The machine can be moved easily in any position, due to the bearing and the accurate balancer. The bearing has a turning stopper. The compactness of the facility is ensured by the built-in control center and by the cover-protected vulnerable parts ensure. 

The electrical high-efficiency enables thicker-material welding. The water-cooled electrode holders guarantee the stable temperature during the point pliers process. The electrodes with adjustable distance and possible adjustment of double stroke to approach welded joint allow to do point pliers process of complexly shaped parts. It is possible to set up the downforce and welding speed by the regulation of compressed-air. The oil-free chrome cylinder and piston guarantee long service life and long-lasting resistance even at high-production load. The TE 300, an integrated control unit, has two fully adjustable welding operations and  pre-welding current and start-up current, and the current pulsation.

Parameters


Gunt type

L

Nominal power at 50%

23 kVA

Max. welding power

65 kVA

Short circuit power

21 kA

Thermal current 100%

4250 A

No load secondary voltage

3,8 V

Delayed fuses

40 A

 

Arms spacing

165 mm

Min. arms length

190 mm

Max. electrode force (6 bar)

338 daN

Working stroke

5 - 20 mm

Max. stroke

28 - 40 mm

 

Max. arms length

800 mm

Max. electrode force (6 bar)

93 daN

Working stroke

18 - 73 mm

Max. stroke

102 - 146 mm

 

Compressed air supply

6,5 bar

Water cooling

7 l/min

 

Max. M. S. sheet thickness with shorter arms

4 + 4 mm

Max. M. S. sheet thickness with 508 mm arms

3 + 3 mm

Max. M. S. sheet thickness with longest arms

2 + 2 mm

Max. cross wire diameter

14 + 14 mm

Spots per minute 1 + 1 class A

80/min

Spots per minute 1,5 + 1,5 class A

32/min

Spots per minute 2 + 2 class A

16/min

Weight

52 kg


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