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Electrodes & EDM Tips Manufacturing — CNC Swiss Lathe Machining

Spot, MIG, EDM and copper electrode tips CNC-turned at ⌀1–20 mm. 14 families, 133 types plus custom sizes. Send a drawing for a quote.

Manufacturing Scope

Electrodes and EDM tips are the wear parts that conduct electrical current to the workpiece in spot/resistance welding, MIG welding, stud welding and die-sinking EDM machines. They are used heavily in automotive, appliance, mold-making and general metalworking. This category holds 14 families and 133 part types: spot welding electrode tips, welding pins, MIG contact tips, electrode holder pins, copper-tip electrodes, stud welding electrodes, conical spot electrodes, stepped EDM electrode tips, drilled tubular electrodes, tapered small-hole electrode tips, threaded and hex-body electrodes, plus small-hole EDM guide bushings and contact bushings. We machine steel, stainless steel, brass and aluminium; copper and copper alloys are preferred for the electrode tip itself. Parts are turned on the Goodway SW-20 Swiss lathe within a ⌀1–20 mm range at h6/H7 fits and ±0.01 mm precision. Alongside the 133 catalogue types, we produce custom sizes to your technical drawing. Send a sample or drawing and we will quote by dimension and quantity.

The defining part here is ELEB-TUB-03 at L/D 13.3 — the slenderness a sliding-head lathe is built for. Lengths across the 133 variants run 16–140 mm, the longest being ELEB-TUB-18 at 140 mm, still inside the 207 mm single-setup limit. Operations: 48× thread turning, 22× hex flat milling, 58× axial bore, 45× taper turning, 19× knurling.

103 of the 133 variants reference a DIN or ISO standard; the tolerance classes in use are 6g, H6, H7, h6, h7, h9.

Every part is CNC-turned to your drawing — series, small batches and custom turned parts. Send your drawing (PDF/DWG/STEP) for a quote.

Part Families

Spot Welding Electrode CapCopper-alloy spot welding electrode cap with conical tip and internal taper seat.10 types⌀8–20 mmOpen the code & size table →Welding PinStepped-body threaded copper welding pin with chamfered contact tip.10 types⌀6–18 mmOpen the code & size table →MIG Contact TipThreaded copper MIG contact tip with wire-feed bore and conical lead-in.10 types⌀6–14 mmOpen the code & size table →Electrode Holder PinElectrode holder pin with hex wrench flats and threaded shank.10 types⌀9.2–19.6 mmOpen the code & size table →Copper Tip ElectrodeCopper electrode rod with conical welding tip and knurled grip zone.10 types⌀6–18 mmOpen the code & size table →Stud Welding ElectrodeDouble-threaded stud welding electrode with flange step and chamfered tip.9 types⌀8–18 mmOpen the code & size table →Pointed Spot ElectrodeSpot welding electrode with long conical tip and internal cooling bore.10 types⌀8–20 mmOpen the code & size table →EDM Electrode Tip (Stepped)Stepped-shank flat-ended copper electrode for die-sinking EDM.9 types⌀6–20 mmOpen the code & size table →Tube Electrode (Bored)Tube electrode with central flushing bore for fast-hole EDM drilling.10 types⌀3–18 mmOpen the code & size table →Fine-Hole Electrode Tip (Tapered)Tapered electrode with pointed tip for precision fine-hole EDM.9 types⌀6–18 mmOpen the code & size table →Threaded-Shank ElectrodeCopper electrode with threaded shank screwing directly into the EDM holder.9 types⌀6–16 mmOpen the code & size table →Hex-Body ElectrodeDie-sinking electrode with hex body for keyed alignment and easy indexing.9 types⌀6.4–19.6 mmOpen the code & size table →Guide Bush (Fine-Hole EDM)Bored guide bush centering the tube electrode in fine-hole EDM drilling.9 types⌀8–19.6 mmOpen the code & size table →Copper Contact BushKnurled copper contact bush with internal thread conducting current to the electrode.9 types⌀8–18 mmOpen the code & size table →

EDM electrode tips are turned in a single operation on the Goodway SW-20 Swiss lathe to the diameters, steps and tapers in your drawing. Copper or copper alloy is usually used; small-hole and stepped geometries are machined to ±0.01 mm. Surface finish and concentricity tolerances can be measured and reported on request.

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