UNMMA-250BIT
UNMMA-250PIT
UNMMA-250MIT
UNMMA-250BIT
UNMMA-250PIT
UNMMA-250MIT
UNMMA-250BIT

INVERTER MMA WELDING MACHINE
UNMMA-250BIT




  • These heavy-duty, fan-cooled IGBT inverter power sources are engineered for MMA welding applications.

  • The unit automatically calculates optimal start and stop parameters according to your preset welding current.

  • Built-in booster circuit delivers extra voltage to achieve reliable arc ignition and great performance for cellulosic electrodes.

  • Wide current adjustment and strong welding capability allow this DC arc welder to work with various electrode types for multiple scenarios.

  • It supports general purpose, stainless steel, cellulosic and low-hydrogen welding rods to meet diverse welding demands.

  • Hot Start function facilitates easy arc striking even when using hard-to-ignite welding electrodes.

  • The ARC FORCE feature enables users to adjust and obtain ideal dynamic arc characteristics.





Designs:

UNMMA-250PIT
UNMMA-250PIT
UNMMA-250MIT
UNMMA-250MIT
Technical Data
ParameterUNMMMA‑
160BIT
UNMMMA‑
200BIT
UNMMMA‑
250BIT
UNMMMA‑
300BIT
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*16*2740*16*2740*16*2740*16*27
Weight (KG)4.55.06.07.5
ParameterUNMMMA‑
160PIT
UNMMMA‑
200PIT
UNMMMA‑
250PIT
UNMMMA‑
300PIT
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
ParameterUNMMMA‑
160MIT
UNMMMA‑
200MIT
UNMMMA‑
250MIT
UNMMMA‑
300MIT
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*16*2740*16*2740*16*2740*16*27
Weight (KG)4.55.06.07.5

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Hot Start

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

2(1).png

Arc Force

Adjustable to select optimal dynamic characteristics of welding arc.

3(1).png

Anti Stick

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

4(1).png

Temperature Protection

Intelligent thermal protection prevents machine damage caused by overheating.

5(1).png

Fan Cooling

Efficient cooling system accelerates heat dissipation and extends service life.

6(1).png

Overvoltage Protection

Safeguards internal components against unstable input voltage surges.

11(1).png

High Efficiency

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

8(1).png

Intelligent Energy‑Saving

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

Packaging Method

A

individual packing,6pcs/ctn

A
B

individual packing,6pcs/ctn

B