en

    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.

    Danubius BP 90.22

    The Danubius BP 90.22 Spot Welding Press is characterized by a larger stretch of welding electrodes. It is primarily used for production of spot welded joints located farther from the sheet metal weldment edges. The spot welding machine has the ULB 4.4 control, which measures the welding current and regulates its inaccuracies. The control system reports an error when the weld is incorrect and it records the welding data on the MICRO SD card. 

    The machine is equipped with pneumatic electrode downforce. The FESTO proportional vent with the pressure control ensures optimum electrode pressure throughout the welding cycle. What is more, you can adjust the pressure in each program individually with no need for operator’s adjustment, which increases the working efficiency. Water cooling system for electrodes contributes to the operation stability as well. 

    Parameters


    Max. primary current

    813 A

    Max. welding current

    27 kA

    Nominal loader DZ

    6,3 %

    Max. power between electrodes

    10 kN

    Coverage

    IP 20

    Nominal primary voltage

    380 V

    Relative electric power

    90 kVA

    Input power

    167 kVA

    Frequency

    50 Hz

    Operation pressure

    0,6 MPa

    Air consumption

    3,6 m3/hod

    Operation water pressure

    0,2 MPa

    Water consumption

    0,25 m3/hod

    Max. welded joint cadence

    150 pcs/min.

    Weight

    690 kg

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    Koval Systems, a. s.

    KOVAL SYSTEMS, a. s.

    Krížna 950/10
    018 61  Beluša
    Slovak republic

    IČO: 31602029
    DIČ: 2020441676
    IČ DPH: SK2020441676
    Business register: The District court in Trenčín, insert file No. 10531/R, section Sa

    We inform you that processing of personal data collected by the KOVAL Systems is under the supervision of the Euro TRADING s.r.o. and it is in accordance with the 44 § of Act no. 18/20128 Z.z. and the Article No. 37 REGULATION (EU) 2016/679 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL. The Euro TRADING s.r.o. offers you an authorized person you can contact at zo@eurotrading.sk. You can find more information at: www.eurotrading.sk/zo

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