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MHW

MHW Magnetic Dosing Ring: 51mm Matte Black

Item Number: a-DR5548B

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MHW Magnetic Dosing Ring: 51mm Matte Black
  • MHW Magnetic Dosing Ring: 51mm Matte Black
  • MHW Magnetic Dosing Ring: 51mm Matte Black
  • MHW Magnetic Dosing Ring: 51mm Matte Black
  • MHW Magnetic Dosing Ring: 51mm Matte Black
  • MHW Magnetic Dosing Ring: 51mm Matte Black
  • MHW Magnetic Dosing Ring: 51mm Matte Black
  • MHW Magnetic Dosing Ring: 51mm Matte Black
Your Price $24.95
4 payments of $6.24
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Description

MHW Magnetic Dosing Ring: 51mm Matte Black

MHW-3Bomber Magnetic Dosing Ring: 51mm Matte Black offers a simple, mess-free way to dose your coffee evenly. Designed for precision and cleanliness, it features 10 magnetic beads for fast positioning and secure attachment to your 51mm portafilter.

Block Mess. Dose Clean.

This 51mm magnetic dosing ring eliminates flying coffee powder during the grind and dose process. Its flared design, expanded bottom diameter, and secure magnetic connection allow you to distribute grounds evenly—without spillage or static mess. Made from anodised aluminium alloy, it’s lightweight, textured, and built to last in commercial or home espresso setups.

How the MHW-3Bomber 51mm Dosing Ring Works

  • Attach: The 10 internal magnets snap onto your 51mm portafilter quickly and securely.
  • Grind: Dose your coffee without worrying about spills or static cling.
  • WDT/Tap: Use your preferred puck prep tool while the ring holds everything in place.
  • Remove: Lift off cleanly—no powder trails or indentations.

Specifications

  • Model: A-DR5548B
  • Size: 51mm (Universal Fit)
  • Receiving Diameter: 61mm
  • Material: Aluminium alloy + magnets
  • Height: 20mm
  • Weight: Approx. 29g
  • Finish: Matte Black, anodised
  • Brand: MHW-3Bomber

Key Features of the MHW 51mm Magnetic Dosing Ring

  • 51mm Diameter: Compatible with 51mm portafilters, with a receiving diameter of 61mm.
  • Magnetic Lock: Features 10 strong magnetic beads for secure placement.
  • Powder Control: Prevents flying and leaking coffee powder during dosing.
  • Flaring Design: Allows a wider and more efficient area for dosing.
  • Durable Build: One-piece anodised aluminium alloy—resistant to corrosion and easy to clean.
  • No Indentations: Single loop snap ring design reduces pressure marks on the portafilter.
  • Stable & Lightweight: Weighs approx. 29g and stays attached even when inverted.
  • Food-Safe: Tested and certified for food contact safety.

Questions & Answers

  • Will the MHW 51mm dosing ring fit my portafilter?
    Yes, the MHW Magnetic Dosing Ring model is designed to fit most 51mm portafilters with strong magnetic stability and no slippage during dosing.
  • Does this dosing ring help reduce mess?
    Absolutely. The magnetic design and flaring shape keep your grounds inside the portafilter, minimising spillage and static cling.
  • Can it be used upside down?
    Yes, the magnetic connection is strong enough that the ring won’t fall off even when inverted, ensuring confident handling at every stage.

Coffee Parts Thoughts

The MHW-3Bomber 51mm Magnetic Dosing Ring is a simple, effective upgrade that streamlines workflow and eliminates dosing mess. Whether you’re using a manual grinder or a high-end setup, this ring keeps coffee where it belongs—inside the basket. Strong, lightweight, and easy to clean, it’s perfect for pros and home brewers.

Looking for other accessories to complete your setup? Explore our full range of dosing tools, MHW-3Bomber gear, or shop coffee accessories that make your workflow smoother.

Specifications
Brand MHW
Model Dosing Collar
Size 51 mm
Colour Matt Black
Country of Manufacture No
Shipping & Returns

Delivery Time and Costs

Parts, Accessories, Brew Bar and Tea Bar

standard delivery

From $8.95  2 – 7 business days*

express delivery

From $9.95  1 – 3 business days*
Water Filters

standard delivery

From $8.95  2 – 7 business days*

express delivery

From $9.95  1 – 3 business days*
Coffee Grinders

Home Grinders

Use estimator  1 – 3 business days*

Commercial Grinders

Use estimator  1 – 3 business days*
Coffee Machines

Home Machines

Use estimator  1 – 4 business days*

Commercial Machines

Use estimator  2 – 7 business days*

 

Freight Partners

Within Australia

Australia Post

TNT Couriers

Same Day

Capital Transport

Civic Couriers

 

We use Australia Post eParcel as well as various Couriers to dispatch all orders both within Australia and Internationally. If you are in Sydney you will also be able to select from same day 3 hour couriers, or click and collect from our warehouse in Pagewood just 10 minutes from Sydney CBD.

Shipping cost will depend on the size of your order and location, however you can check costs both directly on the product page or at checkout prior to entering any details.

Orders placed before 2pm AEST will be despatched on the same working day, and both Australia Post and the couriers we use deliver parcels Monday to Friday, generally between the hours of 8am to 6pm. On most items during checkout you will be able to select between standard and express delivery, however quoted delivery timeframes are indicative only.

For more shipping information please review our shipping and delivery page.

Warranty

All our stock is 'Australian Delivered' as such covered by Australian Warranty which in most cases is manufacturer backed. The warranty does not apply to international orders being sent outside Australia, as such any warranty claim would need to be returned back to Australia for assessment.

Easy Returns

Returns are generally allowed within 14 days of purchase for most spare parts, accessories and brew gear, however some exclusions apply. If you have made your purchase using an eligible PayPal account, you may be eligible to have PayPal refund your shipping costs. For full returns policy please read our returns policy.



MHW-3Bomber Magnetic Dosing Ring: 51mm Matte Black offers a simple, mess-free way to dose your coffee evenly. Designed for precision and cleanliness, it features 10 magnetic beads for fast positioning and secure attachment to your 51mm portafilter.

Block Mess. Dose Clean.

This 51mm magnetic dosing ring eliminates flying coffee powder during the grind and dose process. Its flared design, expanded bottom diameter, and secure magnetic connection allow you to distribute grounds evenly—without spillage or static mess. Made from anodised aluminium alloy, it’s lightweight, textured, and built to last in commercial or home espresso setups.

How the MHW-3Bomber 51mm Dosing Ring Works

  • Attach: The 10 internal magnets snap onto your 51mm portafilter quickly and securely.
  • Grind: Dose your coffee without worrying about spills or static cling.
  • WDT/Tap: Use your preferred puck prep tool while the ring holds everything in place.
  • Remove: Lift off cleanly—no powder trails or indentations.