Portable Electric Terminal Crimping Machine, 12.7 kN Bench Crimper for 0.25–10 mm² Wire WM-3239

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The WM-3239 is a 12 kg mains-powered bench crimper that puts 12.7 kN behind a pair of changeable crimping dies, covering wire from 0.25 to 10 mm². It plugs into a wall socket — no compressor, no air line — and the die sets are interchangeable with compatible manual crimping tools, so the same machine can be re-tooled for different terminal families. Its nameplate rates the crimp stroke at 1.5 seconds on 60 Hz and 1.8 seconds on 50 Hz for a 90 W draw. At 325 × 265 × 150 mm it takes a corner of a bench, and the front panel carries a lockable cycle counter, an overload protector, a start button and CW/CCW indicators.

Specifications

Key features

• 12.7 kN of crimping force from a fixed-speed motor — mains powered, so there is no compressor, no air line and no air preparation to maintain
• Published wire range 0.25 – 10 mm², wider at the top end than the bench ferrule crimpers, so heavier building-wire terminals stay on the same machine
• Die sets are changeable and interchangeable with compatible manual crimping tools — the die pictured is stamped 0.5–1, 1–2.5 and 4–6 mm² along the jaw
• A 1.5-second crimp stroke on 60 Hz mains, 1.8 seconds on 50 Hz, drawing 90 W — both figures come off the machine's own nameplate, not from a brochure
• Lockable cycle counter on the front panel — an operator-level piece count without any extra instrumentation
• Overload protector with a reset button, a lit power rocker and CW/CCW direction indicators, all labelled in English
• Transparent guards over both die positions, so the crimp zone stays visible but the fingers stay out
• 12 kg with a carry handle on a 325 × 265 mm footprint — moves bench to bench, or into a service van
• Free sample crimp — send your wire and a strip of your terminals, we run them on this machine and send you the video and the crimped samples before you order

What it processes

• Bench crimping of loose terminals onto prepared wire ends in switchgear, panel and appliance wiring
• Maintenance and service shops that crimp mixed wire sizes and cannot run an air line to the bench
• Small-batch harness work where terminal families change often enough that changeable dies beat fixed tooling
• Prototype and repair benches that need a powered crimp instead of hand pliers, without a floor-standing press

Suited for: powered bench crimping of loose terminals on wire from 0.25 to 10 mm², at benches that have mains power but no compressed air, and where the terminal family changes often enough that a changeable die set is worth more than fixed tooling. Not suited for: bootlace ferrules across many sizes without die changes — the WM-398 pneumatic ferrule crimper covers 0.08–6 mm² with one stepless adjustable die — and not suited for reel-fed continuous terminals, where the WM-3102T 2-ton applicator press takes OTP applicators and 2000# molds. It is also not the tool to carry up a ladder: if the bench already has compressed air and the work is 0.25–6 mm², the WM-3238 pneumatic crimping tool does the same swappable-die job at 1.3 T and 2.0 kg on 0.5–0.6 MPa shop air.

The argument for this machine is what it does not need. Most bench crimpers in this size class are air tools: they want a compressor, a regulator, a dryer and a hose reaching the bench, and in a service van or a rented unit that is a project of its own. The WM-3239 plugs into the wall and delivers 12.7 kN through the dies from a fixed-speed motor, one crimp every 1.5 seconds on 60 Hz mains or 1.8 seconds on 50 Hz, for a 90 W draw — the figures are printed on the machine’s own nameplate. What arrives at the bench is a 12 kg box with a handle, 325 × 265 mm on the bench and 150 mm tall.

The second argument is reach. The specified range is 0.25 to 10 mm², which is wider at the top end than the small ferrule crimpers on this site cover, and it gets there through changeable dies rather than one adjustable die — the die sets are interchangeable with compatible manual crimping tools, confirmed for the chosen tooling. The die fitted for the photographs is a multi-nest open-barrel type with 0.5–1, 1–2.5 and 4–6 mm² stamped along the jaw, and the finished crimp is shown on a female spade terminal: wire barrel closed on the strands, insulation grip closed on the jacket, in one stroke. Which die you need depends entirely on your terminal, so we quote the die with the machine rather than assume it.

The front panel is plain and in English: a lockable counter reading cycles, an overload protector with a reset button, a lit power rocker, a green start button and CW/CCW indicators for the motor direction. On the back are the IEC mains inlet and a round multi-pin socket for an external switch. Both die positions sit behind clear guards, which is the part worth looking at closely if the machine is going to be used by seasonal staff.

Stroke length, crimp-height adjustment, motor configuration, die selection and included accessories are confirmed on the quote. Electrical entries differ: AC 220 – 110 V in the datasheet and AC 200 – 230 V on the machine nameplate. We confirm the winding for your site supply before ordering.

Above 10 mm² this machine stops. For copper cable lugs from 0 to 75 mm² the WM-3218 hydraulic hexagonal lug crimper presses 13 tons with a change-free die, and for bootlace ferrules up to 16 mm² the WM-3116 servo ferrule press strips, twists, inserts and crimps in about 4 seconds a piece. When the volume outgrows an operator at a bench, the WM-3202 automatic double-end crimping machine cuts, strips and crimps AWG 18–28 leads at 3,800+ pcs/h, and the WM-3220 ring and fork terminal machine feeds pre-insulated 0.3–6 mm² terminals from a bowl feeder at 600 pcs/h.