Magnetic Grinders

There is something immediately satisfying about a Magnetic Grinder: the lid clicks into place with a firm, clean seal that confirms it is locked before you have even started grinding. The rare-earth neodymium magnet embedded in the lid and body holds through firm grinding pressure, stays closed in a bag or pocket, and self-aligns every time you replace the lid. 

That closure works the same whether the grinder body is metal or plastic, which means Magnetic Grinders span both materials, all sizes, and every part configuration. The collection centres on two stocked formats: the Magnetic No.1 Shark Teeth Grinder in standard metal and the Mini Pocket Magnetic Plastic Grinder at 40mm, both in 12-pack formats.

The wider market runs from compact Mini Magnetic Grinders up to Big Magnetic Grinders at 90mm from brands including RAW, Chongz, Headchef, and Santa Cruz Shredder. 

Why The Magnetic Closure Makes a Difference

Stays Shut During Grinding 

A friction-fit lid can work loose under firm pressure or if your grip shifts mid-grind. The magnet in a Magnetic Grinder holds the lid closed regardless of how much downward pressure or rotational force you apply. The closure does not slip because the physical attraction between the magnets does not weaken under mechanical pressure.

No Accidental Opening in a Pocket or Bag 

Carry a friction-fit grinder in a bag, and there is always a chance it works open, especially in a side pocket where other items push against it. A Magnetic Grinder with a proper rare-earth magnet requires a deliberate pull to open. It does not drift apart, it does not spring open under mild compression, and it does not need to be carried thread-side-up to stay closed.

Self-Aligning Lid 

When you replace the lid on a Magnetic Grinder, the magnets pull both halves into alignment automatically. With a screw-thread grinder, a slightly misaligned replacement can cross-thread and wear the threading down over time. The magnetic lid finds its position without any rotation place it close, and it clicks home. Browse the full Smoking Accessories range alongside these grinders.

Available in Metal and Plastic 

The magnetic closure is not limited to metal grinders. A Magnetic Plastic Grinder uses the same rare-earth neodymium magnet in a lightweight plastic body. The Mini Pocket Magnetic Plastic Grinder 40mm is a good example. Whether you prefer the durability of metal or the lightweight carry of plastic, the magnetic closure feature is available in both.

Confirms a Proper Seal 

The click you feel and hear when a Magnetic Grinder lid closes confirms the seal. There is no uncertainty about whether the lid is properly on the magnet, which confirms it. For a grinder carried loose in a bag or jacket pocket, that confidence is practical rather than just satisfying.

Works Across All Sizes 

The magnetic closure scales across every grinder size from a Mini Magnetic Grinder at 40mm right up to a Big Magnetic Grinder at 90mm or larger. The magnet strength adjusts to the body size, providing the same reliable closure regardless of whether the grinder holds a single session's worth of material or a large multi-session preparation.

Found on the Best Sellers 

Magnetic closure has become the standard feature on quality grinders across the market it is the norm rather than the premium on most current ranges. Magnetic Grinders consistently feature among the Best Sellers in the smoking accessories category precisely because the closure quality is immediately noticeable at first use.

Mini, Standard, And Big: Choosing Your Size

The size of your Magnetic Grinder determines how much material it handles per grind, how easily it carries, and how practical it is for your daily routine. This is the most important decision in the magnetic grinder category.

Types Of Magnetic Grinder

2-Part Magnetic Grinder

A lid and grinding chamber in the simplest format with a magnetic closure. Grind, open, and tip the material out directly from the teeth chamber. No catch chamber below, no storage between grinds. Suits:

• Those who want the fewest moving parts
• On-the-go use where speed and simplicity matter
• The Mini format, where added chambers increase bulk unnecessarily

3-Part Magnetic Grinder 

Adds a catch chamber below the teeth through which ground material falls cleanly, no need to tip the grinder to collect. The most practical everyday format for most hand-rollers. Still lightweight and compact, but gives cleaner material collection than a 2-part.

4-Part Magnetic Sifter Grinder 

The full configuration grinding chamber, a collection chamber, a fine mesh screen, and a kief collector at the base. Material fine enough to pass through the screen accumulates in the bottom chamber over multiple grinds. Premium brands like RAW, Headchef, and Santa Cruz Shredder all offer this in magnetic closure formats across standard and large sizes.

Explore The Magnetic Grinders Range

Magnetic No.1 Shark Teeth Grinder 

A standard-size metal Magnetic Tobacco Grinder with shark-tooth cutting teeth and rare-earth magnetic closure. Available in a 12-pack format, the Magnetic No.1 produces a clean, consistent grind for everyday rolling use. The shark-tooth profile cuts efficiently on each rotation; the magnet holds the lid firmly during grinding and in a pocket. A reliable everyday Magnetic Herb Grinder at an accessible price point.

Mini Pocket Magnetic Plastic Grinder 40mm 

A 40mm compact plastic-body Magnetic Grinder from the same Magnetic No.1 family, the Mini version designed specifically for pocket carry and single-session use. Same magnetic closure and shark-tooth cutting profile in a smaller, lighter body. Available in a 12-pack format. The most compact Pocket Magnetic Grinder in the stocked range.

RAW Magnetic Grinders 

RAW produces branded 4-part aluminium magnetic grinders in standard 56mm and premium 60mm gold-plated Ethereal formats. RAW Magnetic Grinders pair naturally with RAW Rolling Papers and the wider RAW accessory range, including RAW KSS Tips and RAW Natural Filter Tips, making them the natural choice for existing RAW users who want brand-consistent accessories across their full setup.

Chongz Magnetic Grinders 

Chongz produces magnetic metal grinders in standard (50mm Dragon Fire), medium (63mm Carousel), and extra-large (90mm Big Big Love) formats. All use magnetic closure and 4-part sifter configurations. The 90mm Big Big Love is the largest mainstream magnetic grinder widely available in the UK, a Big Magnetic Grinder suited to heavy daily users who want maximum capacity per grind.

Headchef Magnetic Grinders 

Headchef is the most widely stocked UK metal grinder brand, and the majority of their range uses magnetic closure. The Heavy Metal 2-part 55mm and Iridescent Samurai 4-part 55mm both use magnetic lids and sit at the standard everyday size. Available across multiple finishes, including iridescent, black, silver and special edition colours.

Santa Cruz Shredder Magnetic Grinders 

Santa Cruz Shredder explicitly markets its rare-earth magnet closure as a premium feature. Both the hemp plastic (available in 2-part from 55mm) and aluminium metal ranges (available in medium to jumbo) use rare-earth magnets of the same quality across materials and sizes. Available in standard, medium, large, and jumbo formats.

Blazy Susan Mini Magnetic Grinder 

The Blazy Susan 4-part Mini Herb Saver Grinder is a compact 4-part magnetic grinder aimed at the travel and compact carry market, a Mini Magnetic Grinder that includes a kief collector despite its small size. Available in multiple coloured finishes.

How To Use a Magnetic Grinder

1. Pull the lid free from the magnet; it releases with a firm, even pull without unscrewing.
2. Break material into rough pieces and load the teeth chamber, keeping material away from the centre post.
3. Align the lid over the body; the magnets will pull it into position automatically. Press down to confirm the click.
4. Rotate the lid with firm, even pressure; ten to fifteen rotations produce a fine, even grind in most magnetic grinders.
5. On 2-part models, open and tip the ground material out directly. On 3-part and 4-part models, remove the catch chamber to access the ground material below the teeth.
6. Clean regularly: plastic magnetic grinders with warm soapy water; metal models with a brush and isopropyl alcohol for thorough cleaning.

Frequently Asked Questions