Extruded magnesium anode rods protect glass-lined and enamel water heater tanks from corrosion, extending tank life by years. Produced on our 1,000-ton extrusion press from AZ31B / AZ63 / M1C billets, with steel core wire, then cut, machined and fitted with NPT / BSP plugs per customer drawings. OEM for major water heater brands.
| Alloy | Diameter (mm) | Length (mm) | Core | Thread | Application |
|---|---|---|---|---|---|
| AZ31B | 16 / 19 / 21 | 100 – 400 | M4 / M5 / M6 | NPT 3/4" | 30–60 L water heater |
| AZ31B | 21 / 22 | 300 – 660 | M5 / M6 | NPT 3/4" / BSP | 60–100 L water heater |
| AZ63 | 25 / 26 | 400 – 800 | M6 / M8 | NPT 3/4" / 1" | Commercial boiler |
| M1C | 32 | 500 – 1000 | M8 | NPT 1" | Large storage tank |
| AZ31B (flexible) | 21 | up to 1200 | segmented | NPT 3/4" | Low-clearance installation |
Individual poly bag + carton, or bulk in wooden case. Private label & retail blister packing available. MOQ 1,000 pcs, samples free, delivery 7–10 days.