High-Power Ultrasonic Wire Splicer for Copper Splices up to 50 mm² WM-718

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The WM-718 welds copper wire splices up to 50 mm² total cross-section — the node sizes found in battery, grounding and power-distribution harnesses. A 5,500 W generator drives the weld head at 20 kHz while pneumatic pressure from 0.05 to 0.9 MPa closes the joint, triggered hands-free by foot pedal. The English-language touchscreen stores a recipe per splice type — weld time, pressure and amplitude — and shows live frequency and power for every joint. The unit runs on 220 V and weighs 110–115 kg with the generator cabinet.

Specifications

Key features

• Welds splice nodes up to 50 mm² total section — the multi-branch battery and grounding joints that undersized splicers refuse
• Pneumatic weld pressure adjustable from 0.05 to 0.9 MPa puts repeatable energy into big copper bundles, pedal-triggered with both hands on the wires
• English touchscreen recipes hold weld time, pressure and amplitude per splice type, with live frequency and power readout on every weld
• Separate generator cabinet and compact weld head keep the working point at bench height while the electronics stay clear of the work

What it processes

• Battery, grounding and power-distribution splices in EV and energy-storage harnesses
• Large earth-wire nodes joining many conductors in switchgear and industrial wiring
• Copper splices on flexible power cable where branch sums reach 50 mm²

Suited for: high-section copper splices — battery, grounding and power-distribution nodes up to 50 mm² total cross-section, welded in one pedal press with recipe-controlled parameters. Not suited for: welding wire ends onto terminals or lugs — for that, pick the WM-713 ultrasonic terminal welding machine, which welds wire to terminal below 30 mm² with its 5,000 W generator.

Send 2–3 meters of each conductor in your splice and we weld your actual node on video — parameters in frame — before you commit. See how high-section splicing fits an EV wire harness line.