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Three-phase Medium Frequency DC Welding Machine

Basic Information
Place of Origin: China
Brand Name: HWASHI
Certification: CE/CCC/ISO
Model Number: WL-MF-50K
Minimum Order Quantity: 1 set
Price: negotiation
Packaging Details: sea worthy wooden package
Delivery Time: 7-30 working days after received your payment
Payment Terms: L/C, T/T
Supply Ability: 50 sets per month
Detail Information
Product Name: Three-phase Medium Frequency DC Welding Machine Application: Welding For Aluminum And Copper Products
Size: 480x900x1600*mm Weight: 350kg
Condition: New Warranty: 12 Months
Standard: CE/CCC/ISO Service Life: 8-10 Years
High Light:

dc spot welder


spot welding tool

Product Description

Three-phase Medium Frequency DC Welding Machine




(1).Welding current for the DC ,when the secondary windings in the induction/a magnetic 

      material will not be affected by welding.

(2).So that the load-balancing power supply      equipment :frequency inverter welder convex 

      point on the use of three-phase power grid voltage drop fluctuations and greater adaptability.

(3).More precise ,fast current control :frequency systems and more ,a more accurate analysis of 


(4).Faster to set up current :IF in the regulation of welding current technology faster than traditional 


(5).Process more reliable :the majority of the application of solder DC welding metal effect will be even 


(6).Reduce operating costs ,including energy savings each and every point of welding as well as 

      shortening the welding cycle.

(7).Save energy :especially suitable for welding thick workpieces and high-conductivity metal.such 

      as aluminum and galvanized steel sheet, etc.

              Three-phase Medium Frequency DC Welding Machine 0




1. Energy Saving: Compare with using low frequency, it can help to reduce the consumption of electric energy. The transformer of the same weight could output more energy. It can also be conveniently used with the large automatic welding clamp.


2. In a semi-automatic machine, one medium frequency transformer can replace many low frequency transformers which can help to reduce the parallel connection in secondary circuit.


3. Improve the power factor, reduce the production cost.


4. Reduce interference in secondary circuit which is in the large open area: the welding current is direct current. When there is induction or magnetic material in secondary winding, the welding will not be affected.


5. To make the power supply unit load balance: MF inverter spot/projection welder adopts the three-phase sources which can store energy.


6. More adaptable to the fluctuation of power grid and voltage drop: a part of the energy has been stored by inverter and been supplied to load. It replaces the way of power supply to load directly from the power grid.


7. More precise and fast control of current: Compare with low frequency system, it is able to analyze more parameters in a more precise way.


8. More reliable process: For most of the applied resistance welding metals, to use DC to weld will help to achieve better effect.


9. The technology of MF system is more traditional and reliable which can prevent the damage results from the breakdown of silicon controlled.


10. Reduce operation cost, including saving the energy of each spot welding and reducing the cycle of welding.









5 Inches Blue Display Screen

Rated Power


Input Voltage

AC 380V, 50Hz

Duty Cycle Rate


Maximum Short Circuit Current


Inverter Frequency


Welding Cycle Period


Welding Pulse Times


Current Slow Rise And Down Control


Stored Welding Models


Throat Depth


Cylinder Size






Sensor, LED and its lead, copper foil and vanished wire, relay, watch, capacitive slug and lead, copper wire, resistance pin, inductance, battery and stabilizer link, socket, silver contact and copper sheet, welding lightning with tungsten and molybdenum material, etc. 





1. HWASHI is the leading brand in resistance welding industry in China for 20 years; Factory direct sale, competitive price.

2. Customized Service: We can help to design and develop the welding machine according to your requirement. We are flexible and capable Supplier.

3. Genuine Product with Excellent Quality:  12 months warranty. Our machines are strictly complied with ISO9001:2000 and China Compulsory Certification. Most of our machines enjoy 8-10 years service life. 100% guarantee test before delivery.

4. After Sales Service and Technical Assistance: 24 hours technical support by email. Our professional team is always here willing to be your technical consultant.

5. Quick Delivery: Our company provides just-in-time delivery.

6. Prompt Response to Customers: Your satisfaction is the goal we pursue.




          Three-phase Medium Frequency DC Welding Machine 1



                                                  Three-phase Medium Frequency DC Welding Machine 2 



Contact Details
Kary Hou

Phone Number : +86-13380655800

Whatsapp : +8613380655800