Guangdong, China
Business Type:
Manufacturer/Factory & Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001
OEM/ODM Service
Sample Available
MEI Awards
Overseas Agent / Branch

Resistance Spot Welding Machine, Resistance Spot Welder, DC Welding Machine manufacturer / supplier in China, offering Middle Frequency Inverter DC Spot Welding Machine, Stainless Steel Cookware Utensils Polishing Machine, Un2 Series "Boyscout" Mini Spring Welder and so on.

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Middle Frequency Inverter DC Spot Welding Machine

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Min. Order / Reference FOB Price
1 set US $5,000-25,000/ set
Port: Guangzhou, China
Production Capacity: 500per/Month
Payment Terms: T/T, Western Union, Paypal, Money Gram
Cooling Way: Water Cooling
Control: Semi-Automatic
Style: Vertical
Welding Way: Spot Welding
Type: Resistance Butt Welding
Color: Blue and Yellow

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Basic Info

Model NO.: MF Series
Warranty: One Year
Rated/Voltage: 380-415-480V
Rated Duty Cycle: 50%
Trademark: DuroWelder
Transport Package: Wooden Box
Specification: 400-800KG
Origin: China

Product Description

 Main Features and Applications
1.Resistance Welding is one kind of welding technology which melt the metal material by the resistance heating energy which is generated by the welding current passing the workpiece itself.Therefore by increase or adjusting the welding current frequency,it can change and improve the weling quality. Just basing on this theroy,we develop the Middle Frequency Inverter DC Welding Machine,its welding current frequency increase to 1000HZ from  common 50HZ or 60HZ. The controlling time precision is much higher,the power factor is more than 98%,without eddy current electromagnetic induction interference,the welding quality is also improved a lot.
2.While not for all the workpiece, the current optimum value is all same as 1000HZ,some need bigger welding frequency,others need less,just because this reason,basing on the Middle Frequency Welding Technology,we also develop VF Series Variable Frequency Welding Machine which welding frequency is adjustable.The principle is that by the added a IGBT pulse width adjustable "Welding Controller" and the output voltage of V and transformer turns N and all adjustable "Welding Transformer" to fulfill the function of adjustable frequency.
3.However,these two kinds of welding methods both can not adjust welding current value of each welding automatically according to the subtle changes of workpiece.In order to meet much higher request to welding quality,such as for the automotive,aircraft and other high-end products,we develop one kind of "Dynamic Resistance Principle Auto Self Adaptive Control System".It can install to both MF and VF Welder,by this way they can adjust the welding current automatically basing different product.This system is based on the constant current mode control technique,according to the workpiece thickness,different dirt surface of workpiece and the corrosion degree,current shunt,the operator's individual difference factors,such as the subtle changes and solder joints,it can automatically adjust welding current during the welding process of each welding spot,ensure the consistency of the welding quality and effect.
4.Middle Frequence and Variable Frequency Welder are both powered by three-phase power,compared to the traditional AC welder two-phase power supply,will not cause the fluctuation of power supply,also can adapt suddenly lifting voltage strongly.Current output is also more accurate,more stable,more energy saving and more efficient.
5.These kinds of higher technology is specially suitable for welding higher conductive rate of material,such as aluminum,copper,silver,and so on.Also good at welding much more thicker workpiece,automobile,aerospace,and other high request products and industry. 
Main Technical Parameter
Rated Voltage(3-Phase),(AC), 380-----415----480V,50/60HZ.
Rated Capacity50KVA90KVA150KVA170KVA250KVA300KVA 
Rated Duty Cycle50%50%50%50%50%50%
Max Welding Current18500A23500A32000A40500A60500A80000A120000A
Electrode Stroke75MM100MM
Welding Arm Spacing260MM320MM
Air Source Pressure0.6MPa
Cooling Water Flow16L/Minute25L/Minute35 L/Minute45L/Minute

Our Machine

 Middle Frequency Inverter DC Spot Welding Machine
Middle Frequency Inverter DC Spot Welding Machine
Middle Frequency Inverter DC Spot Welding Machine

Our Factory

Middle Frequency Inverter DC Spot Welding Machine

If you have any questions, please contact us without hesitation!
Cell Phone: 0086 13660413351

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