The YWM-200 is an IGBT Inverter Multi-Process Welder designed for a variety of welding applications, including MIG, MAG, Flux-Cored, Spool Gun compatible MIG, Stick, and Lift TIG welding. Manufactured by YesWelder, this machine aims to make welding affordable and accessible.
Function Description:
The YWM-200 is a versatile wire feed welder capable of performing Gas Metal Arc Welding (GMAW), which includes MIG and MAG welding, as well as Flux-Cored Arc Welding (FCAW) on steel, mild steel, and stainless steel. It also supports Stick Arc Welding (SMAW) and DC Lift TIG Welding (GTAW).
For MIG welding, the machine requires a shielding gas to protect the weld until it cools. This process is ideal for thinner and clean materials where a very clean, cosmetic weld is desired, such as automotive body panels. Self-shielding flux-cored welding, on the other hand, does not require a separate shielding gas as the welding wire contains special additives (flux) for protection. FCAW is suitable for medium to thicker materials, welding on painted or rusty steel, and outdoor applications where wind might blow away MIG shielding gas. While FCAW produces a good-looking weld, it may not achieve the same excellent cosmetic appearance as MIG welding.
For Lift Arc TIG welding, the YWM-200 does not have a built-in gas solenoid, necessitating a one-piece gas valve TIG Torch. The gas valve must be manually opened before and closed after welding, and the arc is activated using a lift arc technique.
The machine features a user-friendly control panel with a Value Adjustment Knob for setting output current, voltage, and wire feeding speed. A Material Selector allows choosing between 100% CO2 Fe, 98% Argon 2% CO2 Stainless Steel, Flux, and 100% Argon Aluminum. The Process Selection Button toggles between Synergic MIG, Manual MIG, Lift TIG, and Stick modes. A Color LED Screen visualizes welding process parameters, including material, wire diameter, output voltage, and current or wire feeding speed. Other controls include a Wire Feed Button, Voltage/Amperage or Wire Feeding Speed Selector Button, and Wire Diameter Selector Button.
The YWM-200 supports spool gun compatibility for aluminum welding, requiring an optional YesWelder LBT150 spool gun. It also features a Graphene Feeding Liner for aluminum welding with a standard MIG gun, which needs to be installed by replacing the steel wire feed liner.
Important Technical Specifications:
The YWM-200 operates on single-phase input power, supporting both 220V±10% 50/60Hz and 110V±10% 50/60Hz.
- Input Current:
- 220V: I1 max=34A, I1 eff=26.3A
- 110V: I1 max=50A, I1 eff=38.7A
- Rated Output (DC Only):
- 220V:
- GMAW: 200A at 60% duty cycle (24V), 158A at 100% duty cycle (21.9V)
- SMAW: 180A at 60% duty cycle (27.2V), 139A at 100% duty cycle (25.5V)
- GTAW: 200A at 60% duty cycle (18V), 155A at 100% duty cycle (16.2V)
- 110V:
- GMAW: 160A at 60% duty cycle (22V), 123A at 100% duty cycle (20.1V)
- SMAW: 145A at 60% duty cycle (25.8V), 112A at 100% duty cycle (24.5V)
- GTAW: 160A at 60% duty cycle (16.4V), 124A at 100% duty cycle (15V)
- Output Range:
- GMAW: 30A~200A (15.5V~24V)
- SMAW: 20A~180A (20.8V~27.2V)
- GTAW: 10A~200A (10.4V~18V)
- Open Circuit Voltage (Uo): 62V
- Power Factor: 0.8
- Efficiency: ≥80%
- Protection Class: IP21S
- Insulation Class: F
- Cooling Mode: Fan Cooling
- Dimensions: 540mm (L) x 360mm (W) x 445mm (H)
- Weight: 17.65Kg
- Operating/Storage Temperature Range: -20°C ~ +50°C (-4°F~122°F)
Usage Features:
- Multi-Process Capability: Supports MIG, MAG, Flux-Cored, Spool Gun MIG, Stick, and Lift TIG welding, offering broad application versatility.
- Synergic MIG Setting: Simplifies parameter setup by predefining settings based on gas and wire type. Users select wire diameter and gas, then adjust wire feed speed, and the machine auto-adjusts voltage for optimal arc conditions. Fine-tuning of voltage (±5V) is possible.
- Manual MIG Setting: Allows for separate adjustment of wire feed speed (2-15 m/min) and voltage (12.5-30V) for more customized control.
- Torch Operation (2T/4T): Offers both 2-touch (press for arc start, release for arc stop) and 4-touch (press and release for arc start, press and release again for arc stop) trigger operations.
- Inductance Control (IND): Adjustable from -10% to +10%, this feature helps reduce spatter, produce a "softer" arc, and improve wetting out, balancing these qualities against penetration and arc force.
- Burn Back Time (bbt): Adjustable from 0-10, this setting controls how long the wire remains electrically energized after feeding stops, preventing the wire from sticking in the weld puddle.
- Hot Start (hs): Adjustable from 0-10, this feature temporarily increases amperage at arc start, making it easier to strike the arc and achieve deep penetration, especially with damp electrodes or imperfect surfaces.
- Arc Force Adjustable: This feature momentarily increases welding current when the arc voltage drops due to a short arc length, stabilizing the arc, preventing it from cutting out, and reducing electrode sticking. It's adjustable from 1 to 10.
- Anti-Stick (Optional): Automatically cuts off welding current if the electrode touches the workpiece, preventing sticking and machine overloading.
- Wire Spool Compatibility: Accommodates both 4-inch and 8-inch diameter wire spools, with an included 2-inch I.D. spindle adapter for 8-inch spools.
- Spool Gun Compatibility: Allows for aluminum welding with an optional spool gun, connecting via the Euro Connect socket and a 2-pin trigger connector.
- Graphene Feeding Liner: Facilitates aluminum welding with a standard MIG gun by replacing the steel liner, ensuring smooth wire feeding for soft aluminum wires.
Maintenance Features:
- General Maintenance:
- Keep the cabinet cover closed when not in use.
- Regularly clean and replace consumables (contact tips, nozzles, and liner).
- Replace damaged input power cable, ground cable, work clamp, or gun assembly.
- Avoid directing grinding particles towards the welder.
- Periodically clean dust, dirt, and grease from inside the welder using compressed air (every six months or as needed).
- Periodically clean the liner with compressed air, especially when changing wire spools.
- Check drive rollers for wear and replace if necessary (e.g., if the idler roller and wire feed drive roller make contact with the correct wire size).
- Periodically check all cables for good condition and cracks.
- Safety Precaution for Maintenance: Always disconnect the power cable from the AC power source and wait several minutes for electrical energy to discharge before removing side panels to prevent electric shock.
- Consumable Maintenance:
- Contact Tip: Maintain clean contact tips of the correct diameter. Remove burned-back wire or replace worn-out tips to ensure stable arc characteristics and easy starting.
- Gas Nozzle: Periodically clean the gas nozzle to prevent spatter and slag buildup, which can cause erratic welds, less penetration, and overheating of the gun.
- Shorted Nozzle Test: Use an ohmmeter to check for resistance between the gas nozzle and contact tip; if resistance is not unlimited, the nozzle is shorted and needs cleaning or replacement.
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