Portable MMA Welder MMA Inverter Arc Welding Equipment for Welding
1. Brief Introduction
Crafted with precision, the MMA welder boasts top-tier imported IGBT and fast recovery diodes, forming the core of its electrical prowess. Enhanced by a sophisticated main PCB board, it assures consistent welding current regulation for a flawless arc and superior adaptability across diverse welding processes. Its advanced dynamic protection features assure unmatched safety and reliability. This versatile welding masterpiece is ideal for use with low carbon steel, stainless steel, and alloy steel.
MMA Features:
1. High duty cycle of 25% ensures prolonged, efficient operation.
2. Enjoy lower operational costs, bolstered by its advanced portability, sleek compact design, and outstanding output performance.
3.
3. Outstanding arc characteristics coupled with exceptional solution droplet transfer enable unparalleled precision in welding.
4. Comprehensive protective measures against overheating, over-voltage, and over-current, ensuring longevity and safety.
5. Digital display functionality, elevating user experience (available exclusively in plastic shell models).
6.
6. Ergonomic plastic handle for effortless portability and handling.
7.
7. Quick-connect output terminals facilitate rapid, secure, and stable operational setups.
*NOTES: Specifications may evolve without prior notification, ensuring continual product enhancements and improvements.
2. Technical Description
2.1 Environment
* Operating temperature range: Efficiently functions between -10ºC and 40ºC.
* Storage and transportation temperature range: Safely maintain between -25ºC and 55ºC.
* Relative humidity: Accommodates 50% at 40ºC and 90% at 20ºC for optimal performance.
* Ensure ambient air is virtually free of dust, acids, and corrosive gases, except those naturally produced during welding.
* Maximum operational altitude: Effective up to 1 km above sea level.
* Guarantee proper ventilation, maintaining a clearance of at least 50cm around the unit.
* Position in an area where wind speed is a minimum of 1m/s for optimal cooling.
2.2 Input Power
* Power supply should be sine wave, with frequency fluctuations restricted within ±1% of its specified rating.
* Input voltage fluctuations are permissible within a ±10% margin of the designated value.
2.3 Equipment Principle
*NOTES: By harnessing cutting-edge inverter technology, the integral components include:
Rectifier → Filter → IGBT → Transformer → Rectifier → Choke
2.4 Equipment Structure
The MMA Inverter DC Welder showcases a portable cabinet design. Its front panel is equipped with a welding current adjustment knob, a green power indicator, and a yellow abnormal indicator. The output terminals feature quick connectors for both '+' and '-'. The back panel accommodates the power switch, motor fan, and input power cable. Inside, you'll find the PCB main board and a variety of electronic components,and a robust radiator.
2.5 Guide for Marking Models
For example, MMA-160 denotes an Inverter MMA (Manual Metal Arc Welding) machine with a rated output current of 160A..
2.6 Parameter
| Item/Model |
MMA-120 |
MMA-140 |
MMA-160DS |
MMA-180DS |
MMA-200DS |
MMA-220DS |
| Rated Input Voltage (V) |
230±10% |
230±10% |
230±10% |
230±10% |
230±10% |
230±10% |
| Frequency (Hz) |
50/60 |
50/60 |
50/60 |
50/60 |
50/60 |
50/60 |
| Rated Input Capacity (KW) |
5.0 |
5.9 |
6.9 |
7.8 |
9.2 |
9.5 |
| Rated Input Current (A) |
21.8 |
26 |
30 |
34 |
40 |
49 |
| Rated Duty Cycle |
40% @ 120A |
40% @ 140A |
40% @ 160A |
40% @ 180A |
40% @ 200A |
40% @ 220A |
| No Load Voltage (V) |
67 |
67 |
67 |
67 |
67 |
67 |
| Output Current Range (A) |
10~120 |
10~140 |
10~160 |
10~180 |
10~200 |
10~220 |
| Efficiency (%) |
≥85 |
≥85 |
≥85 |
≥85 |
≥85 |
≥85 |
| Protection Class |
IP21S |
IP21S |
IP21S |
IP21S |
IP21S |
IP21S |
| Insulated Grade |
H |
H |
H |
H |
H |
H |
| Electrode Size (mm) |
1.6~3.2 |
1.6~3.2 |
1.6~4.0 |
1.6~4.0 |
1.6~4.0 |
1.6~5.0 |
| Cooling Type |
AF |
AF |
AF |
AF |
AF |
AF |
| Overall Dimension (mm) |
312*120*183 |
312*120*183 |
312*120*183 |
312*120*183 |
312*120*183 |
312*120*183 |
| Net Weight (KG) |
3.5 |
3.5 |
3.7 |
3.8 |
4.2 |
5.0 |
| Item/Model |
MMA-145H |
MMA-160H |
MMA-200H |
MMA-160HL |
MMA-200HL |
| Rated Input Voltage (V) |
230±10% |
230±10% |
230±10% |
110\220±10% |
110\220±10% |
| Frequency (Hz) |
50/60 |
50/60 |
50/60 |
50/60 |
50/60 |
| Rated Input Capacity (KW) |
6.6 |
6.9 |
9.2 |
6.9 |
8.1 |
| Rated Input Current (A) |
30 |
34 |
40 |
34 |
40 |
| Rated Duty Cycle |
60% @ 145A |
60% @ 160A |
60% @ 200A |
60% @ 160A |
40% @ 190A |
| No Load Voltage (V) |
67 |
67 |
67 |
85 |
85 |
| Output Current Range (A) |
10~145 |
10~160 |
10~200 |
110V:10~120
220V: 10~160 |
110V:10~120
220V: 10~190 |
| Efficiency (%) |
≥85 |
≥85 |
≥85 |
≥85 |
≥85 |
| Protection Class |
IP21S |
IP21S |
IP21S |
IP21S |
IP21S |
| Insulated Grade |
H |
H |
H |
H |
H |
| Electrode Size (mm) |
1.6~3.2 |
1.6~4.0 |
1.6~5.0 |
1.6~4.0 |
1.6~4.0 |
| Cooling Type |
AF |
AF |
AF |
AF |
AF |
| Overall Dimension (mm) |
312*120*183 |
378*120*183 |
420*148*216 |
378*120*183 |
420*148*216 |
| Net Weight (KG) |
4.6 |
4.8 |
7.3 |
4.8 |
5.2 |
| Item/Model |
MMA-140D |
MMA-160D |
MMA-160G |
MMA-200G |
| Rated Input Voltage (V) |
110±10% |
110±10% |
230±10% |
230±10% |
| Frequency (Hz) |
50/60 |
50/60 |
50/60 |
50/60 |
| Rated Input Capacity (KW) |
4.5 |
8.1 |
5 |
6 |
| Rated Input Current (A) |
38 |
5.5 |
21 |
28 |
| Rated Duty Cycle |
40% @ 120A |
40% @ 140A |
25% @ 120A |
25% @ 150A |
| No Load Voltage (V) |
85 |
85 |
61 |
61 |
| Output Current Range (A) |
10~120 |
10~140 |
10~120 |
10~150 |
| Efficiency (%) |
≥85 |
≥85 |
≥85 |
≥85 |
| Protection Class |
IP21S |
IP21S |
IP21S |
IP21S |
| Insulated Grade |
H |
H |
H |
H |
| Electrode Size (mm) |
1.6~3.2 |
1.6~4.0 |
1.6~3.2 |
1.6~4.0 |
| Cooling Type |
AF |
AF |
AF |
AF |
| Overall Dimension (mm) |
312*120*183 |
312*120*183 |
312*120*183 |
312*120*183 |
| Net Weight (KG) |
3.5 |
3.8 |
3 |
3.2 |
2.7 Standard
* EN 60974-1: Adhering to Arc Welding Machine Standards for superior safety and performance.
* JB / T 7824-95: Complies with Technical Conditions of Inverter Arc Welding Rectifier.
* GB 4208-93: Aligns with Protection Class (IP Code) requirements for enhanced durability.
3. Interconnection Diagram
Detailed Circuit Schematic for the INARC Welder
(Important: All figures provided are for illustrative purposes only and may be modified without prior notice.)
4. Transportation and Storage
* This machine is meticulously crafted for exclusive indoor use. It is imperative to shield it from rain and snow throughout transportation and storage. Handle with utmost care, especially when packages bear warning labels. The storage environment must be dry, adequately ventilated, and devoid of corrosive gases or dust. Maintain temperatures ranging from -25ºC to 55ºC with a relative humidity below 90%.
* Should prolonged storage be necessary post-unpacking, repack the items adhering strictly to the original packaging guidelines. Ensure the product is pristine and securely sealed in plastic bags before storage.
* Preserve the integrity of cartons and shock blocks for robust packaging during extended transportation. For lengthy journeys, opt for wooden crates and prominently mark packages with 'up' or 'rain' symbols to guarantee proper handling.
5. Quality Warranty
If the machine is utilized in strict adherence to the guidelines outlined in the operation manual,and meets the standards for installation, storage, use, and maintenance,the manufacturer pledges to offer complimentary services to userswithin a 12-month period from the purchase date, as detailed on the invoice.
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