Miller ArcReach® SuitCase® 12 Wire Feeder – Remote Voltage & WFS Control (MR301456)
The Miller ArcReach® SuitCase® 12 Wire Feeder is a rugged, high-performance portable wire feeder featuring game-changing ArcReach® Technology designed to dramatically improve jobsite productivity, safety, and profitability.
By allowing operators to set voltage and wire feed speed remotely at the point of use, ArcReach technology eliminates wasted time walking back to the power source, maximises arc-on time, and ensures consistent weld quality — even on large or multi-level job sites.
Built for harsh industrial environments, the ArcReach SuitCase 12 delivers unmatched durability, reliability, and uptime for demanding field and workshop applications.
ArcReach® Technology – Work Faster & Safer
ArcReach welding technology minimises non-value-added time and maximises efficiency by enabling remote parameter adjustment with no control cords.
Key Benefits
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Adjust voltage & wire feed speed directly at the feeder
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Eliminates control cords – fewer failures and lower maintenance costs
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Improves weld quality and arc consistency
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Reduces walking time and operator fatigue
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Enhances jobsite safety by minimising slip, trip, and fall risks
Built for Maximum Uptime & Durability
Rugged Industrial Design
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Impact-resistant case for harsh environments
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No feeder control cords to damage or replace
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Field-proven ArcReach components for long service life
Increased Uptime
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Reliable internal components
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Reduced downtime and maintenance costs
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Ideal for construction, fabrication, and heavy industry
Advanced Performance & Operator Control
Cable Length Compensation (CLCâ„¢)
Ensures the voltage set by the operator is the voltage delivered at the arc by automatically compensating for weld cable length — even hundreds of feet from the power source.
*Available when connected to XMT® 350 FieldPro power source.
Heavy-Duty Drive System
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Industrial drive motor with tachometer control
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Accurate, consistent wire feed speed
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Stable arc quality from start to finish
Maximum Fleet Compatibility
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Compatible with ArcReach-enabled Miller power sources
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Integrates seamlessly with XMT® 350 FieldPro and other ArcReach products
Enhanced Operator Control
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Quick and easy parameter adjustments
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Prevents inadvertent setting changes
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Faster return to previous weld processes
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Reduces risk of incorrect welding procedures
Ideal Applications
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Construction & Structural Steel
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Pipeline & Field Welding
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Fabrication Shops
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Maintenance & Repair
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Mining & Heavy Industry
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Multi-level & large job sites
Technical Specifications
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Input Power: Operates on open-circuit voltage and arc voltage – 14–48 VDC / 110 Max OCV
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Input Welding Current Rating: 425A @ 60% Duty Cycle
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Wire Speed: 1.3 – 19.8 m/min (dependent on arc voltage)
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Wire Diameter Capacity:
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Solid Wire: 0.6 – 1.4 mm
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Flux-Cored Wire: 0.8 – 2.0 mm
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Max Spool Size: 305 mm diameter, up to 20 kg
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Dimensions (H × W × D): 394 × 229 × 533 mm
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Weight: 15.9 kg
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Part Number / SKU: MR301456



