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MMA 250/350/450 AMPS Welding Machine - Stud Type
MMA 250/350/450 AMPS Welding Machine - Stud Type
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MMA 285/385 AMPS Welding Machine - Portable Models
MMA 285/385 AMPS Welding Machine - Portable Models

MMA 250/350/450 AMPS Welding Machine – Oil Cooled

The Mechweld MMA 250/350/450 A Oil-Cooled Welding Machine is a heavy-duty stick (SMAW/MMA) transformer designed for demanding applications. Featuring robust oil-cooling and insulated holders, it delivers reliable high-current performance, extended duty cycle, and safe operation under continuous use.

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Description

Designed for high-demand welding tasks, the Mechweld MMA Oil-Cooled Welding Machine offers stable output across its 250 A, 350 A, and 450 A variants. Its oil-cooled transformer ensures efficient heat dissipation and extended duty cycles—perfect for uninterrupted operation in fabrication yards, industrial workshops, and maintenance projects. Rugged construction and insulated holders deliver both safety and durability, making it a trusted choice for heavy-duty environments.

Key Features & Benefits

  • Oil-Cooled Transformer Design
    Keeps internal components cool during sustained use, extending service life and boosting thermal performance.

  • High Output Options (250 A / 350 A / 450 A)
    Suitable for a wide range of electrode sizes and metal thicknesses—from routine repair to heavy fabrication.

  • Dual Insulated Holders
    Safe, ergonomic handling with high-quality insulation ensures operator protection even during high-current welding.

  • Industrial-Grade Durability
    Rugged construction built to endure continuous use in challenging environments—ideal for workshops and field use.

  • Long Duty Cycle & Continuous Operation
    Oil cooling enables longer welding periods without overheating—perfect for intensive or high-throughput work.

Ideal For

  • Heavy-duty stick welding in fabrication, construction, shipyard, and maintenance settings

  • Jobs requiring extended weld times and high-current output

  • Applications where thermal performance and machine longevity are essential

  • Environments demanding operator safety and consistent performance

Why Choose the Mechweld MMA Oil-Cooled Series?

Feature Benefit
Oil-Cooled Transformer Maintains optimal temperature for long-duration welding
Multiple Ampage Variants Versatile output—from 250 A to 450 A—to match job requirements
Insulated Dual Holders Added safety and flexibility during prolonged use
Industrial Build Quality Reliable performance in harsh, high-demand conditions
Extended Duty Cycle Reduces overheating, boosting efficiency on long jobs
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