UNMMA-250DE

INVERTER MMA WELDING MACHINE
UNMMA-250DE

The machines are fan cooled, 2PCBS design,IGBT based inverter controlled power sources meant for MMA / TIG (scratch start)welding. The machine automatically provides operators with the optimal start and stop parameters based on the set welding current. A booster circut provides additional voltage for superior cellulosic arc starts and welding performance.


Designs:

UNMMA-250DT
UNMMA-250DT
UNMMA-250DN
UNMMA-250DN
Technical Data
ParameterUNMMA-160DEUNMMA-200DEUNMMA-250DEUNMMA-300DE
Mains Voltage (V)220220220220
Frequency (HZ)50/6050/6050/6050/60
No-load Voltage (V)65656565
Rated Input Capacity (KVA)6.08.39.510.8
Insulation ClassFFFF
Output Current (A)20-16020-20020-25020-300
Rated Duty Cycle (%)60606060
Dimensions (CM)40*14*2740*14*2740*14*2740*14*27
Weight (KG)4.55.06.07.5
ParameterUNMMA-160DTUNMMA-200DTUNMMA-250DTUNMMA-300DT
Mains Voltage (V)220220220220
Frequency (HZ)50/6050/6050/6050/60
No-load Voltage (V)65656565
Rated Input Capacity (KVA)6.08.39.510.8
Insulation ClassFFFF
Output Current (A)20-16020-20020-25020-300
Rated Duty Cycle (%)60606060
Dimensions (CM)39*13.5*26.539*13.5*26.539*13.5*26.539*13.5*26.5
Weight (KG)4.55.06.07.5
ParameterUNMMA-160DNUNMMA-200DNUNMMA-250DNUNMMA-300DN
Mains Voltage (V)220220220220
Frequency (HZ)50/6050/6050/6050/60
No-load Voltage (V)65656565
Rated Input Capacity (KVA)6.08.39.510.8
Insulation ClassFFFF
Output Current (A)20-16020-20020-25020-300
Rated Duty Cycle (%)60606060
Dimensions (CM)40*14*2740*14*2740*14*2740*14*27
Weight (KG)4.55.06.07.5

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Hot Start

Optimizes arc ignition performance for hard‑to‑strike welding electrodes.

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Arc Force

Adjustable to select optimal dynamic characteristics of welding arc.

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Anti Stick

Automatically lowers current for quick release when electrode sticks to workpiece.

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Temperature Protection

Intelligent thermal protection prevents machine damage caused by overheating.

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Fan Cooling

Efficient cooling system accelerates heat dissipation and extends service life.

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Overvoltage Protection

Safeguards internal components against unstable input voltage surges.

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High Efficiency

High conversion rate, less power loss and improves welding working performance.

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Intelligent Energy‑Saving

Low idle power consumption, improves energy efficiency during long working hours.

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VRD

Voltage reduction device for enhanced operator safety against electric shock.

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Lift TIG

Lift‑start TIG function, scratch‑free arc ignition for tungsten electrode.

Packaging Method

A

individual packing,6pcs/ctn

A
B

individual packing,6pcs/ctn

B