Tecna Weldcon India Pvt. Ltd.

Ambad, Nashik, Maharashtra

Welding control units with welding current direct reading.Six-phase silicon rectifier with device to check the diodes proper clamping.Protection of the diodes against excess voltages, and temperature.Synchronous SCR contactor insulated from the cooling water circuit with protection thermostat.Standard on all models: two-hand safety control with timer assuring the best safety, and removable key selector. The two-hand control push-buttons, are standard on projection welders only (they are available on request on spot welders).

Microprocessor based Welding Controller Unit, with Simple SCR Firing Angle Control Specially Built for Multi Spot Welding Head Machines, having Cascade and Concurrent Function. With Current Compensation Function.TECNA has a range of Welding Controller Units that are designed and built keeping various application areas in mind. All control Units are invariably Microprocessor Controlled and manufactured using the latest technology in electronics.

Equipped with IS0 standard transformers, these guns form the middle range of the available variety. While maintaining the transformer standards compatible with international IS0 specifications, every attempt is made to make the machine compact and light weight. Superior degree of operator comfort is ensured for fatigue free continuous operation, resulting in higher production and shorter pay back periods.

Bench Mounted Spot & Projection Welding Machines

Space Saving: As machine is mounted on bench, the lower space can be utilized for storage of WIP and FG

Higher Electrical Efficiency : Due to small form factor and shorter secondary lengths, these machines are more energy efficient.

Welding currents upto 25 kA and electrode force upto 800kGF make it pissible to weld most of the jobs.

Extremely versatile, it is the ideal equipment for the repairs in car body shops. It allows to single-spot weld rivets, screws, self-threading rivets, washers and pins. It is possible to perform shrinking. A quick straightening of panels is carried out thanks to the 3 point star on the percussion extractor. Improved versatility to allow the use of different accessories for sheets straightening

MAIN WELDER FEATURESDC Three-phase welding machines, offering the following additional features -

- High power factor- Reduced load on plant primary electrical service.- Balanced load distribution on the three phases.- Reduced effect of magnetic materials between arms on the welding current.- Reduced installation costs.

• Welding control units with welding current direct reading.
• Six-phase silicon rectifier with device to check the diodes proper clamping.
• Protection of the diodes against excess voltages, and temperature.
• Synchronous SCR contactor insulated from the cooling water circuit with protection thermostat.
• Standard on all models: two-hand safety control with timer assuring the best safety, and removable key selector. The two-hand control push-buttonsare standard on projection welders only (they are available on request on spot welders).
• Two-stage electric foot control for clamping and welding pieces only if correctly positioned.
• Pre-connected for additional double stage electric foot control for the direct recalling of welding program No.2 (not on units equipped with rotary selector recall).
• Emergency push-button to stop the machine immediately.
• Protection with automatic circuit breaker.
• Water-cooled transformer, plates, electrode-holders and electrodes; transformer with epoxy resin coated windings.
• Pneumatic cylinders with chrome plated stem and low friction seals which do not need lubrication.
• Adjustable double stroke with key control, cylindrical guided stems with adjustable anti-rotation device, prismatic precision roller guides.
• Complex pneumatic cycle, with electrode low pressure squeeze. Pressure program on demand.
• Built-in compressed air filter unit and tank.
• Compressed air disconnecting device.
• Electrodes descent without pressure for both maintenance and set-up.
• Flow-switch which stops the machine if the cooling water does not flow (it works with either city water or recirculating water).

WELDER MAIN FEATURES

• Medium frequency welders, designed to obtain high quality welding.
• Modular design of mechanical structure, arms, brackets, cylinders.
• Cylinder with chrome plated stem for heavy duty works and long life; adjustable anti-rotation device.
• Lubrication free pneumatic components to eliminate oil mist and to protect the environment.
• Adjustable double-stroke cylinder with key control.
• Electrodes descent without pressure for both maintenance and set-up.
• Built-in compressed air filter unit and tank. Compressed air disconnection device.
• Water-cooled transformer, plates, electrode-holders and electrodes; transformer with epoxy resin coated windings.
• Two stage electric foot control for clamping and welding pieces only if correctly positioned.
• Pre-setting for additional double stage electric foot switch connection for the direct recalling of a different welding program.
• Arranged for all models: two-hand safety control with timer and removable key selector, assuring the best safety. The two-hand control device is standard on projection models only (it is available upon request on spot welder models).
• Emergency push-button to stop the machine immediately.
• Protection with automatic circuit breaker.
• Flow-switch which stops the machine if the cooling water does not flow.

WELDING CONTROL UNIT TE700- Inverter command with medium frequency IGBT, with possibility of choosing the operating frequency of the inverter between 1000 Hz and 4000 Hz. Storage of up to 300 welding programs; 255 may be called from external devices. Possibility of associating an 8-character alphanumeric identifier with each weld program. Possibility of managing as many as 4 different welding transformers or as many as 4 different kinds of electrodes through the same control unit. Overheating protection for the welding transformers. Up to 32 programmable parameters for each program. Slope up, Slope down, pulses, pre-weld, post-weld functions and adjustment of the welding times with units of 1 mS. Display of the RMS of the welding current, energy, power, RMS value of voltage at the electrodes, of the initial and final resistance, of the machine's thermal use percentage, of the machine's use percentage and, as an option, of the initial thickness of the material to be welded and the indentation at the end of the weld.

6 WORKING MODES- constant current, constant power, constant voltage, FIX, constant energy, DYNAMIC mode. Limit indicators for: Current, voltage at the electrodes, energy, power, inverter use ercentage, initial and final resistance of the material to be welded; thickness and indentation limit of the material (optional).

Double stroke function. Stepper function to compensate the wear and tear of the electrodes with programmable curves and possibility of intervening independently on the welding time and current through differentiated stepper laws. Possibility of using 4 different stepper options associated with 4 different spot counters associated with each weld program. Control of 5 solenoid valves 24 VDC max. 5 W with selfprotected output. Output for proportional solenoid valve. Selectable languages: Italian, English, French, German, Spanish, Hungarian, Swedish or Portuguese. Possibility of managing as many as 4 different electrode tip dressings at the same time through 4 different spot counters (optional).