MFDC / MFDC Adaptive
Spot plus Projection Welding Machine
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Teach Pendant included
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Smart Touch Screen Pendant – optional
- 3 Phase balanced load, unity power factor
- 1kHz operating frequency
- Optional adaptive control
- Secondary voltage, current and power control available
- Direct proportional valve output – optional
Kirti Machines Are Preferred For
Sturdy No Vibrations
10mm thick sturdy body.
Thick sheets bent and welded to form a sturdy body that does not vibrates and gives precise welds.
Spot & Projection
Same Machine can be used for Spot welding as well as Projection welding.
Low Friction High Speed
Low mµ technology reduces friction substantially, gives fast operating speed. Upto 800 cycles/min oscillation at no weld.
Low & Easy Maintenance
Modular design and quick connect wiring harness makes removal of assembly part easy.
Thermal & Electrical Stability
New Specially designed Thyristor gives higher thermal & electrical stability and high tolerance to external electrical/magnetic noise/pulse.
High Duty Cycle
HighQ Transformer ensures high efficiency, low thermal losses & higher duty cycle.
Specifications
| Machine Specs | Unit | MFDC15KA | MFDC20KA | MFDC25KA |
|---|---|---|---|---|
| Rated Max Current @ 20% Duty Cycle | kA | 15 | 20 | 25 |
| Secondary Voltage | Volt | 6.9, 9 | 6.9, 9 | 6.9, 9 |
| Welding Current Max | kA | 20 | 25 | 30 |
| Control Type | 1kHz Mid Frequency Direct Current with Secondary current and Voltage Feedback | |||
| Proportional Valve Output | Optional | Optional | Optional | |
| Secondary Current & Voltage Feedback | Standard | Standard | Standard | |
| Time Setting Least Count | ms | 1 | 1 | 1 |
| Throat Depth* | mm | 250~300 | 250~300 | 250~300 |
| Arm Gap Max** | mm | 300 | 300 | 300 |
| Electrode Force Min-Max | kg-f | 150 to 486 | 150 to 984 | 150 to 984 |
| Free Air Consumption @1bar | ||||
| for 100 Spots and 25mm stroke | litres | 250 | 300 | 300 |
| Cooling Water Pressure | kg/cm sq | 6 | 6 | 6 |
| Cooling water flow rate | litre/min | 13 | 13 | 13 |
| Water Chiller Required | Yes | Yes | Yes | |
Welding Capacity (Indicative Comparison) |
||||
| Sheet Metal CRCA | mm | 2.5/2.5 | 03-Mar | 3.5/3.5 |
| Sheet Metal HR | mm | 2.5/2.5 | 03-Mar | 3.5/3.5 |
| Sheet Metal SS | mm | 04-Apr | 4.5/4.5 | 05-May |
| Projection Nut Welding – Max Size | M8 | M12 | M16 | |
| Dimensions | mm | 1050×410 | 105 x410 | 1050×410 |
| Height | mm | 1780 | 1780 | 1780 |
| Weight | kg | 520 | 600 | 680 |
* Throat Depth available upto1200mm on request
** Special Arm Gap available on request
Benefits for Nut Projection Welding
- The welded nut withstands 2 times breaking torque that of standard specification
- No Retapping
- No Co2 Tagging
- Minimizes Rework, Reduces Cost
- Avoids frequent Destruction Testing
- No adverse effects on the Threads and thus responds to go-no go test positively
Our manufacturing processes make machines more
Sturdy and Reliable
- 10 mm Thick body (TATA steel)
- Machine body made sturdy by CNC bending and welding
- Laser cut body Gives interchangeability of assembly parts
- Cylinder Head & Brass elbow Machining on HMC
- Powder Coated body
Modular design and quick connect wiring harness make
Easy Maintenance & Troubleshooting
- Machines have Quick Connect Wiring Harness with snap on connectors
- Can easily remove – controller, thyristor and other assembly parts
- It also helps in fault finding
