Heavy Duty Sub-Arc Tractor

Technical Specifications & Payload Capacity

Built for heavy-scale industrial fabrication, this tractor offers the power and stability required for massive weldments.

• Travel Speed: 5–100 ipm (127–2540 mm/min)
• Payload Capacity: Up to 350 lb (159 kg)
• Wire Feed Speed: 25 to 600 inches per minute
• Wire Diameter Range: 1/16″ to 7/32″ (1.59 – 5.56 mm)
• Flux Management: Includes an integrated flux recovery unit to recycle submerged-arc welding flux automatically.

Features of the Bug-O Heavy-Duty Sub-Arc Tractor

The Heavy Duty Sub-Arc Tractor is designed for optimal performance in demanding environments. This robust equipment includes:

• Over-sized wheels for heavy-duty environments
• LED display on pendant
• The pendant provides two separate weld contactor switches for the starting operation of two separate torches
• Integrated tractor controls into the wire-feed control unit
• The flux recovery unit allows for the recycling of submerged arc flux

Advantages of Automated SAW Tractors

A welding tractor automates torch travel for consistent, hands-free welds.
Key benefits include:

• Improved weld speed and quality
• Reduced operator fatigue
• Consistent travel on flat or curved surfaces
• Adjustable torch positioning
• Seamless integration with wire-feed systems

Why Use a Sub-Arc Welding Tractor?

Submerged Arc Welding (SAW) is a high-efficiency process where the weld arc is hidden beneath a layer of flux. This method delivers deep penetration, minimal spatter, and exceptional weld quality—ideal for heavy-duty applications like structural fabrication and tank welding.

Capabilities of Our Sub-Arc Welding Machine

A sub-arc welding machine combines a power supply, wire feeder, torch, and controls into one efficient unit. Bug-O’s heavy-duty system handles large wire sizes, supports multi-position racking, and recycles flux—all built to perform in high-demand environments.

How a Subarc Welder Improves Efficiency and Precision

Whether referring to the equipment or the operator, a subarc welder is essential for precise, high-volume welding. Bug-O’s system delivers repeatable results with integrated controls, steady wire feed, and optimized travel, making every weld cleaner and more reliable.

Ideal Applications & Industries

The Bug-O Heavy-Duty Sub-Arc Tractor is the industry standard for sectors requiring deep penetration and high-strength bonds. Common applications include:

• Structural Steel Fabrication: Beams, girders, and heavy columns.
• Shipbuilding: Deck plating and hull section joints.
• Tank and Vessel Manufacturing: Large-diameter pressure vessels and storage tanks.
• Infrastructure: Bridge decking and heavy-duty plate joining.

Take Your Welding Further with the Bug-O Subarc Tractor

Experience the power, precision, and durability of the Bug-O Subarc Tractor. Built for demanding welds and heavy-duty performance, it’s the trusted choice for automated submerged arc welding. Fill out our interest form today to get started.