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

INVERTER MMA WELDING MACHINE
UNMMA-250BIT

The machines are heavy duty, fan cooled, 2PCBS design, IGBT based inverter Digital controlled power sources for MMA 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-250PIT
UNMMA-250PIT
UNMMA-250MIT
UNMMA-250MIT
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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.

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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