Image UA-500 Arc Stud Welding System, 900A, 1PH, Includes Gun & 12' Cables

Midwest Fasteners Image UA-500 Arc Stud Welding System

Type: Portable Drawn-Arc Stud Welder | Stud Range: 10ga – 1/2" | Power: Single Phase

Overview

The Image UA-500 is a highly versatile, portable stud welding "workhorse." Designed for both shop and field use, it is one of the few machines capable of welding 1/2" diameter studs while running on standard single-phase AC power. This makes it an essential tool for steel fabrication, bridge deck work, and industrial maintenance where 3-phase power isn't available.

This listing is for a complete operational package, meaning you aren't just getting the power source—you’re getting the full setup required to strike an arc and start production immediately.

Key Features

• Single-Phase Versatility: Operates on 208/230/460 VAC single-phase power, allowing for industrial-grade stud welding on nearly any jobsite.
• Wide Stud Range: Expertly handles studs from 10 gauge (3mm) up to 1/2" (13mm) in diameter with precision.
• Solid-State Reliability: Features advanced solid-state circuitry for consistent weld current and time control, ensuring high-strength, repeatable results.
• High-Output Performance: Delivers a continuous current range from 250 to 900 Amps, providing the "punch" needed for heavy structural studs.
• Built for the Field: Housed in a heavy-gauge steel case with a built-in on-board tool box, heavy-duty handle, and large wheels for easy transport over rough surfaces.

Included in This Operational Package

UA-500 Power Source: 115V/230V/460V Single Phase.

• Standard Duty Stud Gun: Complete with legs and foot piece for stable, vertical positioning.
• Ground Cable: Heavy-duty 1/0 cable with a high-tension "C" clamp.
• Combination Cable: 1/0 cable, giving you plenty of reach on larger workpieces.

Technical Specifications

• Weight: 150 lbs. (Power source only)
• Dimensions: 41" H x 16" W x 16"
• Duty Cycle: * 1/2" Studs: 5 per minute
• 5/16" Studs: 12 per minute
• Output: 900 Amps @ 40 VDC

Dealer Note

"The UA-500 is the go-to choice for contractors who need 1/2" capacity without the weight and power requirements of a massive 3-phase unit. Because this is a complete system, you avoid the high cost of sourcing a compatible gun and cables separately—which can easily run an additional $800–$1,000. It’s ready to roll off the truck and onto the deck."