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Boat anodes are an essential part of the boat maintenance cycle as they protect underwater metals from galvanic corrosion. Also known as sacrificial anodes.
We recommend replacing anodes when they are half eroded or dissolved, which is typically once a year. The speed in which anodes dissolve depends on a range of factors including usage, location (of your boat), water temperature and the quality of the anode itself. For example, MG Duff's zinc anodes have a high zinc content, ensuring they provide maximum protection for a longer period of time.
Without anodes, underwater metals are at risk of galvanic corrosion - which could in turn lead to a hefty repair bill.
Anodes Type
Boat anodes generally come in three metals - Aluminium, Magnesium and Zinc.
Zinc is the the traditional anode choice for saltwater vessels.
And Andoes are specifically designed for different sizes and shapes to be used widely in many different areas and places of the ships, such as:
1.Hull
2.Shaft
3.Rudder &Trim Tab
4.Colar
5.Engine
6.Propeller
7.Sterndrvie
8.Jet Drive
9.Outboard
10.Bow Thruster
11.Saildrive
12.Keel cooler
etc.....
For Ship Hull
Type | Specification (mm) | Iron Foot Size (mm) | Net Weight (kg) | Gross Weight (kg) | |||
A×B×C | D | E | F | G | |||
ZH-1 | 800×140×60 | 900 | 45 | 5~6 | 8~10 | 45.4 | 47.0 |
ZH-2 | 800×140×50 | 900 | 45 | 5~6 | 6~8 | 37.4 | 39.0 |
ZH-3 | 800×140×40 | 900 | 45 | 5~6 | 5~6 | 29.5 | 31.0 |
ZH-4 | 600×120×50 | 700 | 40 | 5~6 | 6~8 | 24.0 | 25.0 |
ZH-5 | 400×120×50 | 470 | 35 | 4~5 | 6~8 | 15.3 | 16.0 |
ZH-6 | 500×100×40 | 580 | 40 | 4~5 | 5~6 | 12.7 | 13.6 |
ZH-7 | 400×100×40 | 460 | 30 | 4~5 | 5~6 | 10.6 | 11.0 |
ZH-8 | 300×100×40 | 360 | 30 | 3~4 | 5~6 | 7.2 | 7.5 |
ZH-9 | 250×100×40 | 310 | 30 | 3~4 | 5~6 | 6.2 | 6.5 |
ZH-10 | 180×70×40 | 230 | 25 | 3~4 | 5~6 | 3.3 | 3.5 |
For Ballast Water Tank
Type | Specification (mm) | Iron Foot Size (mm) | Net Weight (kg) | Gross Weight (kg) | ||||
A×(B1+B2)×C | D | E | F | G | H | |||
ZT-1 | 500×(115+135)×130 | 800 | 50 | 6 | 40 | 60 | 53.5 | 56.0 |
ZT-2 | 1500×(65+75)×70 | 1800 | - | Φ16 | 20 | 40 | 48.3 | 50.0 |
ZT-3 | 500×(110+130)×120 | 800 | 50 | 6 | 40 | 60 | 48.0 | 50.0 |
ZT-4 | 1000×(58.5+74)×65 | 1300 | - | Φ16 | 20 | 40 | 31.8 | 33.0 |
ZT-5 | 800×(56+74)×65 | 1100 | - | Φ16 | 20 | 40 | 24.0 | 25.0 |
ZT-6 | 1150×(48+54)×51 | 1450 | - | Φ1 | 15 | 35 | 18.6 | 20.0 |
ZT-7 | 250×(80+100)×85 | 310 | 30 | 4 | 6~8 | 0 | 12.8 | 13.0 |
ZT-8 | 200×(70+90)×70 | 260 | 30 | 3 | 6~8 | 0 | 7.3 | 7.5 |
Note 1: ZT-1& ZT-8 are flat type anodes; Note 2: ZT-2, ZT-4,ZT-5 & ZT-6 anodes' iron feet are round bar steel. | ||||||||
For Storage Tank
Type | Specification (mm) | Iron Feet Size (mm) | Net Weight (kg) | Gross Weight (kg) | ||
A×(B1+B2)×C | D | F | G | |||
ZC-1 | 750×(115+135)×130 | 900 | 16 | 8~10 | 82.0 | 85.0 |
ZC-2 | 500×(115+135)×130 | 650 | 16 | 8~10 | 55.0 | 56.0 |
ZC-3 | 500×(105+135)×100 | 650 | 16 | 8~10 | 39.0 | 40.0 |
ZC-4 | 300×(105+135)×100 | 400 | 12 | 8~10 | 24.6 | 25.0 |
For Sea Water Cooling System
Type | Specification (mm) | Iron Foot Size (mm) | Net Weight (kg) | Gross Weight (kg) | |||
A×(B1+B2)×C | D | E | F | G | |||
ZE-1 | 500×(115+135)×130 | 620 | 50 | 6 | 8~10 | 54.5 | 56.0 |
ZE-2 | 1000×(80+100)×80 | 1200 | 30 | 6 | 6~8 | 49.0 | 50.0 |
ZE-3 | 500×(105+135)×100 | 620 | 40 | 6 | 8~10 | 39.2 | 40.0 |
ZE-4 | 500×(80+100)×80 | 620 | 30 | 6 | 6~8 | 24.4 | 25.0 |
ZE-5 | 400×(110+120)×50 | 500 | 35 | 4 | 5~6 | 15.4 | 16.0 |
ZE-6 | 300×(140+160)×40 | 360 | 60 | 4 | 5~6 | 12.0 | 12.5 |
ZE-7 | 200×(90+110)×40 | 250 | 30 | 3 | 5~6 | 5.3 | 5.5 |
