AD-3.1 Small-to-Mid Copper & Aluminum Butt Welder
Aluminum, Brass, Bronze, Copper, Nickel
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Butt Welder
AD-8.1 Heavy-Duty Butt Welder for Large MCM Copper & Aluminum Cable
The AD-8.1 Butt Welder is among the largest in the AD Series, welding solid copper up to 1.250 inches and stranded aluminum to 2000 MCM. With one of the highest current draws in the range and a robust 5,400-pound frame, it’s engineered for heavy industrial production of large conductors and cable. Solid-state heat control and pneumatic clamping deliver consistent, top-quality welds across aluminum, copper, and other non-ferrous metals, while interlocked guarding, a weld flash containment hood, and finger-safe components keep large-scale operations both productive and protected.
- 480 volts, 60 cycle, single phase a/c
- Robust fixed & movable interlocked guarding
- Solid state heat control
- Solenoid controlled, pneumatic actuated clamps
- Four piece welding die with 2-3 grooves included
- Interlocked Electrical Enclosure
- 24 Volt Control Voltage
- “Finger safe” Electrical Components and covers
- Interlocked Weld Flash Containment Hood
- Heavy duty truck with stationary mounts
Metal:
Aluminum, Brass, Bronze, Copper, Nickel
Construction:
Solid, Stranded
Solid Copper Welding Range:
.500 in (12,70 mm) - 1.250 in (31,75 mm)
Solid Aluminum Welding Range:
.625 in (15,80 mm) - 1.500 in (38,10 mm)
Stranded Copper Welding Range:
250 MCM (126 mm²) - 1250 MCM (642 mm²)
Solid Aluminum Welding Range:
500 MCM (253 mm²) - 2000 MCM (1013 mm²)
Max Current Draw:
1850/1475
Single Phase Transformer:
Yes
Heat Selection Method:
99 STEPS SCR
Upset Method:
Air
Air Requirements:
100psi
Mounting Truck Type:
4 Wheels
Dimensions & Weight:
Welding Die Height: 43 in (109.22 cm)
Width Across the Front: 85 in (215.90 cm)
Depth to the Back: 40 in (101.6 cm)
Height: 50 in (127cm)
Weight: 5400 lbs
Width Across the Front: 85 in (215.90 cm)
Depth to the Back: 40 in (101.6 cm)
Height: 50 in (127cm)
Weight: 5400 lbs
- Integrated Anneal
- Standard Vise
- Heavy Duty Vise
- Shear
Butt Welder Upgrades to Improve Your Precision and Productivity
Upgrade your Micro Weld butt welders with world-class safety & technology accessories. You’ll get the same quality, rugged welders with the safety features you need, creating uniformity with every machine and consistency with every training.
- New Finger Safe Covers & Components
- 24V Control Circuit
- Interlock Switch on Rear Access Panel
- Solid-State Heat Control
Applications
Welding stranded copper conductors from 250 MCM to 1,250 MCM on high-output wire-and-cable production lines
Splicing heavy aluminum conductor up to 2,000 MCM without pulling down coilers, payoff reels, or continuous processing equipment
Joining large-diameter solid copper and aluminum rod ahead of heavy drawing, extrusion, or roll-forming at near-flagship capacity
Supporting uninterrupted production runs on large-section power cable where line stoppages carry significant cost
Handling oversized non-ferrous conductor in facilities where flash containment, interlocked enclosures, and 24V control circuits are standard plant requirements
Real-World Benefits
- At 1,850A maximum current draw and 5,400 lbs, the AD-8.1 is built for sustained operation on stranded copper up to 1,250 MCM and aluminum up to 2,000 MCM.
- Stranded aluminum capacity to 2,000 MCM makes this machine appropriate for large-section cable that would exceed the AD-6.1’s range, opening the door to larger project bids without a flagship investment.
- Interlocked flash containment hood, finger-safe components, and 24V control voltage align with the elevated safety requirements of high-energy welding in production environments running large cross-sections.
- 99-step SCR heat selection gives process teams precise, repeatable heat selection across large copper and aluminum conductor — reducing scrap.
- Pneumatically actuated, solenoid-controlled upset clamps ensure consistent force delivery on every cycle, critical when the cost of a failed weld on 2,000 MCM aluminum is measured in more than just time.
Comparison to Similar Models
Within the AD Series, capacity steps up with the model number from the AD-3.1 through to the AD-10.1. The AD-8.1 sits one position below the flagship, extending stranded copper to 1,250 MCM and aluminum to 2,000 MCM — beyond what the AD-6.1 can handle, and within range of most large-section production requirements.
If your stranded conductor falls within the AD-6.1’s ranges — up to 1,000 MCM copper or 1,250 MCM aluminum — the AD-6.1 covers that work at lower cost and equivalent safety architecture.
Choose the AD-8.1 when you’re regularly working at the upper MCM range and need proven headroom before committing to the AD-10.1, or when 2,000 MCM aluminum is already part of your production mix.
Best For
High-volume wire-and-cable manufacturers and transmission cable producers running stranded copper up to 1,250 MCM and aluminum up to 2,000 MCM — operations that need near-flagship capacity, full safety guarding, and consistent upset force across demanding multi-shift production schedules.
