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The KR350A MIG Welding Torch is tailor-made for heavy-duty welding scenarios—including thick steel plate fabrication (6-12mm), shipbuilding hull welding, construction machinery maintenance, and large automotive frame manufacturing . It integrates an ergonomic PP handle and a precision gas burner system, forming a synergistic structure that optimizes shielding gas distribution and arc stability during MIG welding. Constructed with industrial-grade materials—heat-resistant copper alloy burner (with built-in filtration and pressure regulation ) , and silicone-insulated tinned copper cable—the torch maintains consistent performance under 350A continuous current operation.
Key Features
Precision Gas Burner System: Copper alloy burner integrates a 100-mesh filter and micro-adjustable flow regulator , ensuring uniform argon/CO₂ distribution (flow deviation ≤5%) to minimize weld oxidation. The heat-dissipating fin structure prevents spatter buildup, extending nozzle service life by 30%.
350A High-Current Adaptability: Rated for continuous 350A operation, it achieves weld penetration depth ≥2.5mm (meeting mechanical industry standards ) on 12mm steel plates without preheating ; the burner’s 400℃ heat resistance avoids thermal deformation during prolonged use.
Broad Compatibility: Seamlessly matches KR-series welders (KR300/KR400) and mainstream industrial models (e.g., Lincoln Power Wave, Miller XMT), supporting 1.0-1.6mm solid wires —eliminating adapter needs for multi-machine workshops.
Tool-Free Maintainability: Detachable burner head enables 60-second cleaning/replacement; reinforced cable joints (10,000+ bend cycles) and scratch-proof PP handle reduce maintenance frequency by 50% compared to conventional torches.
Specifications
Parameter
Details
Product Type
MIG Welding Torch (Welding Accessory)
Model
KR350A
Gas Burner
Copper Alloy (fin-type heat dissipation; 400℃ max temp)
Burner Components
100-mesh filter + micro-flow regulator
Rated Current
350A (continuous); 400A (intermittent)
Suitable Wire Diameter
1.0 - 1.6mm (solid wire for carbon/low-alloy steel )
Superior Weld Quality: Uniform gas distribution reduces spatter by 60% and ensures weld penetration ≥2.5mm , meeting AWS D1.1 structural welding standards for critical joints.
High Heavy-Duty Efficiency: 350A capacity enables one-pass welding of 12mm plates , cutting process time by 30% vs. 250A torches; ergonomic handle boosts daily productivity by 20%.
Low Total Cost of Ownership: Universal compatibility saves 40% on torch inventory; detachable burner reduces replacement costs by 60% (no full torch replacement needed ).
Enhanced Operational Safety: PP handle’s chemical resistance prevents corrosion-related slippage; burner filtration system reduces clogging risks, lowering accident rates by 25%.
Proven Market Reliability: As a top-selling model, it has 92% user satisfaction in 2024 industrial surveys; multi-certification compliance supports global deployment with minimal regulatory hurdles.
