W/Cu 75/25 · W/Cu 70/30 · Factory-direct
Electrode wheels, shipped in days — not weeks.
Tungsten-copper seam-welding wheels up to OD 400 mm, machined to 0.02 mm runout and shipped in 10–14 days. No minimum order. Custom profiles in 20–25 days.
10–14days
Standard lead time
400mm max OD
× 100 mm thickness
80,000kg / month
Factory capacity
21years
Making tungsten-copper
Product Line
Five ways to buy tungsten-copper, zero minimums
Two electrode-wheel grades machined to your drawing, plus rods, threaded electrodes and custom parts — all from one factory floor in Guangdong.
Best seller CuW75 · 75% Tungsten
W/Cu 75/25 Electrode Wheels
The workhorse alloy for seam-welding wheels
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High conductivity CuW70 · 70% Tungsten
W/Cu 70/30 Electrode Wheels
Higher conductivity for heavy-current welding
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Stock shapes CuW75 / CuW70
Electrode Rods & Blocks
Stock shapes machined from infiltration bar
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To drawing CuW75 / CuW70
Threaded Electrodes
Precision-threaded welding consumables
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To drawing To specification
Custom W/Cu Parts
Near-net shapes and special profiles
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By Application
Built for the line it runs on
Four application areas, each with its own failure modes — and the tungsten-copper grade that solves them.
Seam Welding
Wheels that hold profile through the whole coil run
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Resistance Welding
Threaded electrodes and caps for guns, robots and fixtures
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EDM
Low-wear electrode stock for die-sinking and small-hole work
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Heat Sinks & Contacts
Where W/Cu grades split — and what we do and do not supply
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Why buyers switch
Western distributors quote 4–12 weeks. We ship in 10–14 days.
Same infiltrated-tungsten metallurgy, comparable pricing — the difference is response time. RFQs answered within 24 hours, quotes honored for 7 days, English documentation on every shipment.
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No MOQ
Order one wheel or one hundred. Special shapes quoted per part, no hidden tooling minimums.
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Machined to drawing
OD 0/+0.5 mm, bore H7, runout 0.02 mm. Flat, beveled, R-profile or knurled edges.
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Batch traceability
Composition, density and hardness checks per batch; inspection records ship with the order.
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Compliance-friendly
We supply sub-80% tungsten alloys only — outside dual-use export controls, routine customs.
The factory behind the brand
A National High-Tech Enterprise, 21 years deep in tungsten-copper
ArcTung is the export channel of a 2005-era manufacturer in Heyuan, Guangdong — not a trading desk. We are on the floor when your wheels are being machined.
Verified
National High-Tech Enterprise
Certified 2025 batch, valid through 2028
Verified
Guangdong "Specialized & Sophisticated"
Re-approved Feb 2026, valid through 2029
Verified
88 patents
Including tungsten-cupra forging and machining IP
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Exported worldwide
Germany, Japan, Korea, Singapore and beyond
Technical library
23 guides to the questions that come before the quote
Grade selection, tolerances, machining and failure modes — written by the people who machine the parts, not by a content agency.
Grade selection
W75Cu25 vs W70Cu30 for resistance welding
Wear life against conductivity, with the weld schedules each grade actually suits.
ReadWheel geometry
Seam welding wheel profiles explained
Flat, bevel, R and knurled faces — what each does to the nugget and to wheel life.
ReadMaterial data
Tungsten copper density by grade, W90 to W50
The density band each grade should read, and how to tell porosity from a copper-rich billet.
ReadRefractory choice
Tungsten copper vs molybdenum for EDM
Where CuMo wins on cost and where W/Cu wins on everything that matters at the spark gap.
ReadThermal management
Copper tungsten thermal conductivity and heat sink grades
Conductivity and CTE by grade, plus the substrate-matching table.
ReadQuality
Incoming inspection checklist for W/Cu electrodes
What to measure on arrival so a bad batch is caught before it reaches the line.
ReadRFQ · response in 24 h
Send a drawing. Get a quote tomorrow.
Alloy, dimensions, quantity — that is all we need. Quotes held for 7 days, firm pricing.