MME Zinc Alloy Rod Sacrificial Anodes – Ø20–150 mm, 500–600 mm Length
The MME ZR Zinc Alloy Rod Anodes are cylindrical sacrificial anodes designed to provide cathodic corrosion protection for metal components in marine and industrial applications. Manufactured from zinc alloy, these anodes are available in different diameters and lengths to accommodate specific dimensional requirements.
The range includes 13 variants with diameters from 20 to 150 mm. All diameter options are available in a nominal length of 500 mm, while the Ø20 mm version is also available in a length of 600 mm. Nominal weights range from 1.12 to 63.09 kg, depending on the selected model.
The zinc alloy specifications are in accordance with U.S. MIL Spec. A-18001K. The alloy has a nominal electrochemical capacity of 780 Ah/kg and a nominal solution potential of -1050 mV versus an Ag/AgCl reference cell in seawater.
Key Features
- Brand: MME
- Product Series: ZR
- Product Type: Sacrificial rod anode
- Material: Zinc alloy
- Shape: Cylindrical rod
- Application: Cathodic corrosion protection
- Diameter Range: 20–150 mm
- Available Diameters: 20, 25, 30, 40, 50, 60, 70, 80, 90, 100, 125 and 150 mm
- Available Lengths: 500 and 600 mm
- 600 mm Length: Available for Ø20 mm only
- Nominal Weight Range: 1.12–63.09 kg
- Zinc Alloy Specification: U.S. MIL Spec. A-18001K
- Nominal Electrochemical Capacity: 780 Ah/kg
- Nominal Solution Potential: -1050 mV vs. Ag/AgCl reference cell in seawater
- Available Variants: 13
- Sales Unit: 1 piece
Technical Specifications and Available Models
The MME ZR series includes 13 cylindrical zinc alloy anodes with different diameters, lengths and nominal weights. All dimensions are specified in millimetres.
| Model / Product Number | Technical Specifications |
|---|---|
| MMEZR20 | Diameter: 20 mm Length: 500 mm Nominal Weight: 1.12 kg EAN: 8720193042558 |
| MMEZR20-600 | Diameter: 20 mm Length: 600 mm Nominal Weight: 1.35 kg EAN: 8720193042565 |
| MMEZR25 | Diameter: 25 mm Length: 500 mm Nominal Weight: 1.75 kg EAN: 8720193042572 |
| MMEZR30 | Diameter: 30 mm Length: 500 mm Nominal Weight: 2.52 kg EAN: 8720193042589 |
| MMEZR40 | Diameter: 40 mm Length: 500 mm Nominal Weight: 4.49 kg EAN: 8720193042596 |
| MMEZR50 | Diameter: 50 mm Length: 500 mm Nominal Weight: 7.01 kg EAN: 8720193042602 |
| MMEZR60 | Diameter: 60 mm Length: 500 mm Nominal Weight: 10.09 kg EAN: 8720193042619 |
| MMEZR70 | Diameter: 70 mm Length: 500 mm Nominal Weight: 13.74 kg EAN: 8720193042626 |
| MMEZR80 | Diameter: 80 mm Length: 500 mm Nominal Weight: 17.94 kg EAN: 8720193042633 |
| MMEZR90 | Diameter: 90 mm Length: 500 mm Nominal Weight: 22.71 kg EAN: 8720193042640 |
| MMEZR100 | Diameter: 100 mm Length: 500 mm Nominal Weight: 28.04 kg EAN: 8720193042527 |
| MMEZR125 | Diameter: 125 mm Length: 500 mm Nominal Weight: 43.81 kg EAN: 8720193042534 |
| MMEZR150 | Diameter: 150 mm Length: 500 mm Nominal Weight: 63.09 kg EAN: 8720193042541 |
Construction and Dimensions
The MME ZR anodes are manufactured from zinc alloy and feature a solid cylindrical rod configuration. The manufacturer specifies two dimensional parameters: rod diameter (D) and overall length.
- Cross-Section: Circular.
- Body Shape: Cylindrical rod.
- Material: Zinc alloy.
- Minimum Diameter: 20 mm.
- Maximum Diameter: 150 mm.
- Standard Length: 500 mm.
- Additional Length: 600 mm for the Ø20 mm version.
The nominal weight depends on the diameter and length of the selected rod. The Ø20 × 500 mm model weighs 1.12 kg, while the Ø20 × 600 mm version weighs 1.35 kg.
The Ø150 × 500 mm model has the highest nominal weight in the range at 63.09 kg.
Zinc Alloy Composition
The zinc alloy specifications are in accordance with U.S. MIL Spec. A-18001K. The specified alloy composition is as follows:
| Element | Composition (%) |
|---|---|
| Cadmium | 0.025–0.07 |
| Aluminium | 0.10–0.50 |
| Zinc | Remainder |
| Copper | 0.005 max. |
| Iron | 0.005 max. |
| Lead | 0.006 max. |
| Other Elements, Total | 0.10 max. |
Electrochemical Properties
The manufacturer specifies the following nominal electrochemical characteristics for the zinc alloy:
| Property | Specified Value |
|---|---|
| Electrochemical Capacity | 780 Ah/kg nominal |
| Solution Potential | -1050 mV nominal |
| Reference Electrode | Ag/AgCl |
| Reference Environment | Seawater |
| Alloy Specification | U.S. MIL Spec. A-18001K |
Dimensions and Model Selection
The MME ZR series is available in 12 diameter options and 13 dimensional combinations. Dimensions are specified as diameter × length.
- MMEZR20: Ø20 × 500 mm, 1.12 kg.
- MMEZR20-600: Ø20 × 600 mm, 1.35 kg.
- MMEZR25: Ø25 × 500 mm, 1.75 kg.
- MMEZR30: Ø30 × 500 mm, 2.52 kg.
- MMEZR40: Ø40 × 500 mm, 4.49 kg.
- MMEZR50: Ø50 × 500 mm, 7.01 kg.
- MMEZR60: Ø60 × 500 mm, 10.09 kg.
- MMEZR70: Ø70 × 500 mm, 13.74 kg.
- MMEZR80: Ø80 × 500 mm, 17.94 kg.
- MMEZR90: Ø90 × 500 mm, 22.71 kg.
- MMEZR100: Ø100 × 500 mm, 28.04 kg.
- MMEZR125: Ø125 × 500 mm, 43.81 kg.
- MMEZR150: Ø150 × 500 mm, 63.09 kg.
When selecting a rod anode, compare the required diameter, length and nominal weight with the specifications of the intended cathodic protection arrangement.
Application and Cathodic Protection
The MME ZR zinc alloy rods are sacrificial anodes intended for cathodic corrosion protection. The zinc alloy functions as a sacrificial material, corroding preferentially to help protect electrically connected metal components.
The range provides different diameters and weights for applications requiring cylindrical zinc alloy anodes. The appropriate configuration should be selected according to the dimensional requirements of the intended installation.
Technical Notes
- All dimensions and weights are nominal.
- Dimensions are specified in millimetres.
- Technical data is subject to change without prior notice.
- Other specifications are available on request from the manufacturer.
Sales Unit: 1 zinc alloy rod anode.
