Semi-Automatic Soldering Machine with Automatic Solder Feed, 0–550 °C Iron WM-722

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The WM-722 is a benchtop semi-automatic soldering machine: the operator loads the part into a fixture, and a pneumatically driven soldering iron comes down while a motorised feeder pushes solder wire into the joint and retracts it afterwards. The iron runs on a lead-free ESD station adjustable from 0 to 550 °C and draws under 150 W at 15 V 3 A. Fixtures are built to the wire diameter and pin pitch of the job, so the same machine solders switch lugs, LED boards, terminals, thermistors and connector cores by changing tooling rather than machines. It ships at 27 kg in a 49 × 46 × 50 cm carton.

Specifications

Key features

• Automatic solder wire feed and retract — a stepper motor and knurled drive wheel push solder through a guide tube into the joint and pull it back, so the tip is not left sitting in a bead between cycles
• Iron temperature set and held on a lead-free ESD soldering station, 0–550 °C, with the digital readout and the up/down keys at the operator's hand
• Pneumatic soldering head with adjustable flow-control valves — approach speed and dwell are set on the machine instead of in the operator's wrist
• Job-specific fixtures bolt onto the slotted base plate; the factory builds them to your wire diameter and pin pitch, so a changeover is a fixture swap
• Fume hood sits alongside the tip and ducts out the back of the cabinet, keeping flux smoke out of the operator's breathing zone
• Gooseneck LED work lamp on its own switch, aimed straight at the joint
• Free sample test — send us your parts, we solder them on this machine and send you the video before you order

What it processes

• Wire leads soldered to PCB pads and small circuit boards
• Connector and USB cores where the joint is soldered rather than crimped
• Switch lugs, small motor terminals and LED light boards
• Terminals, resistance sensors and thermistors
• Wire harness sub-assemblies and repair benches that need a repeatable joint without a dedicated production line

Suited for: bench-volume soldering where the joint has to look the same on the hundredth piece as on the first — leads onto PCB pads, wires onto switch lugs and motor terminals, connector cores, thermistors and sensor legs — on a machine that is adapted to the job by building a fixture rather than by buying a different platform. Not suited for: three things, each of which has a home elsewhere on this site.

If your work is USB cable assembly at production volume, the WM-712 semi-automatic USB cable soldering machine is the dedicated answer: four stations that clamp, pull, strip and solder in one cycle at a published 300–600 pieces per hour. The WM-722 does not strip — the part arrives at the fixture already prepared.

If what you actually want is pre-tinned wire ends rather than a joint between two parts, you want a solder pot, not an iron. At bench volume the WM-4718 semi-automatic multi-core cable stripping and tinning machine strips, twists and dips core wires of 0.8–3.0 mm diameter at 500 pcs/h; from the reel, the WM-4715 automatic double-end twisting and tinning machine cuts and finishes both ends of 3.0–8.0 mm OD sheathed cable at 2,000–5,000 pcs/h.

And if the connection is copper-to-copper and you would rather have no solder in it at all, the WM-711 ultrasonic wire welding machine cold-welds gathered strand splices from 0.75 to 20 mm² with a 3,000 W generator — no solder, no flux, no flux residue to clean.

The honest case for a machine like this is narrow and worth stating plainly. A skilled hand solderer beats it on a one-off. What the hand loses is consistency across a shift: solder volume drifts, dwell time drifts, tip temperature drifts as the iron is put down and picked up, and the joints at the end of the day do not match the joints at the start. This machine fixes the three variables that cause that — the tip temperature is held by a controller, the solder length is fed by a motor, and the approach is driven by a cylinder against a fixture that always presents the part in the same place. The operator’s job becomes loading and unloading.

Because the fixture is what adapts the machine to your part, the fixture is the part of the quote worth getting right. Send us the actual component, the wire gauge and the pin pitch — we will run it on this machine, film the joint, and quote the tooling with the machine rather than after it.