Hollex Zinc Ring Propeller Shaft Anodes – Ø22–130 mm, Saltwater
The Hollex Zinc Ring Propeller Shaft Anode is a sacrificial anode designed to protect marine propeller shafts against corrosion in saltwater environments. Manufactured from zinc, it features a ring-shaped body with a central opening corresponding to the selected shaft diameter.
The anode is designed to be installed against the front of the propeller. The range includes 20 variants for shaft diameters from 22 to 130 mm, with external anode diameters from 60 to 210 mm. Each version has specific dimensions to accommodate different propeller shaft sizes.
Key Features
- Brand: Hollex
- Product Type: Sacrificial propeller shaft ring anode
- Material: Zinc
- Shape: Ring
- Application: Marine propeller shafts
- Installation Position: Against the front of the propeller
- Suitable Water Type: Saltwater
- Shaft Diameter Range: 22–130 mm
- External Anode Diameter Range: 60–210 mm
- Available Variants: 20 sizes
- Function: Sacrificial corrosion protection for propeller shafts
Technical Specifications and Available Sizes
The following table lists the shaft diameter, external anode diameter and anode thickness for each product variant. Dimensions are specified in millimetres.
| Product No. | Shaft Diameter (mm) | External Diameter (mm) | Anode Thickness (mm) |
|---|---|---|---|
| 5930 | 22 | 60 | 15 |
| 5931 | 25 | 60 | 15 |
| 5932 | 30 | 60 | 15 |
| 5933 | 35 | 74 | 15 |
| 5934 | 40 | 74 | 18 |
| 5935 | 45 | 74 | 18 |
| 5936 | 50 | 96 | 29 |
| 5937 | 55 | 96 | 29 |
| 5938 | 60 | 120 | 30 |
| 5939 | 65 | 120 | 30 |
| 5940 | 70 | 130 | 30 |
| 5941 | 75 | 130 | 30 |
| 5942 | 80 | 140 | 40 |
| 5943 | 85 | 140 | 40 |
| 5944 | 90 | 163 | 40 |
| 5945 | 100 | 180 | 40 |
| 5946 | 110 | 190 | 40 |
| 5947 | 120 | 200 | 40 |
| 5948 | 125 | 200 | 40 |
| 5949 | 130 | 210 | 60 |
Dimensions and Model Selection
The Hollex Zinc Ring Anode range includes 20 versions with different internal shaft diameters and external dimensions. The shaft diameter is the primary selection parameter, while the external diameter and thickness determine the overall dimensions of the anode.
- Shaft Diameter (As Ø): 22 to 130 mm.
- External Anode Diameter (Dia Ø): 60 to 210 mm.
- Anode Thickness: 15, 18, 29, 30, 40 or 60 mm, depending on the version.
- Material: Zinc.
- Shape: Ring.
Select the anode corresponding to the propeller shaft diameter. The external diameter and thickness should also be checked against the available installation space.
Installation and Application
The ring anode is designed to be mounted against the front of the propeller. Its central opening accommodates the propeller shaft, with different sizes available to suit shaft diameters from 22 to 130 mm.
- Installation Location: Propeller shaft.
- Mounting Position: Against the front of the propeller.
- Required Selection Parameter: Shaft diameter.
- Additional Dimensions: External anode diameter and thickness.
Corrosion Protection
The zinc anode acts as a sacrificial component, corroding preferentially to help protect the propeller shaft and associated metal components from corrosion.
These ring anodes are suitable for saltwater environments. The zinc construction provides sacrificial corrosion protection for marine propeller shaft applications.








