The MD Series Mid-Frequency Spot & Projection Welding Machines is designed to provide advanced welding features for the industry sector.It has the advantage of compact size with high power output capacity which is perfect for the integration of welding systems in the auto industry.The size of the welding transformer is reduced since the operating frequency is increased from 50/60Hz to 1000Hz. Also, the use of rectifier diodes at the output generating DC current would improve the welding performance in the secondary circuit. This helps to improve efficiency and thus the cost of operation.

The Mid-Frequency Welders has the following advantages over the traditional AC welders

1. Energy Saving: Compared with AC welders, it is more efficient to deliver the same amount of welding energy to the work pieces using mid-frequency inverters.

2.Easy to Integrate: Because of the relative lighter weight of mid-frequency transformers, it is easier to integrate with other welding equipments in an automation welding system.

3. Improve power factor, and the cost of welding operations.

 4. The nature of DC current helps to reduce electrical and magnetic interference, especially those applications with large secondary current loop. Also the secondary circuit inductance does not lower the welding quality due to the nature of DC welding current.

5.Balanced loading to the 3 phases of power lines.

6.Higher adaptability to any changes from the 3 phase power lines.

7.More precise and faster control using 1000Hz frequency, which is 20 times faster.

8. Faster to achieve program current set point.

9.Capable to weld metals with higher conductivities, such as copper and aluminum.

10. High quality and reliable components are used to reduce service times.

11.Cost Saving made possible due to faster and higher efficient welding.

12.Mid frequency inverter welding machine.

Inverter welding machine