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MillMaster Fluted Grain Mill


The MillMaster Fluted Grain Mill has hardened 420 Stainless Steel Fluted Rollers. The best geared roller mill on the market for home brewers.

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Unit: Each SKU: 25781 Category:


MillMaster MiniMill Specifications

  • 130mm (5″approx.) precision machined rollers
  • 39mm (1 1/2″) diameter rollers
  • 26 flutes per roller
  • 420 Hardened Stainless Steel Rollers as Standard high corrosion and wear resistance
  • 12.7mm (1/2″) drive shaft keyed for easy motorization, drill drive or hand crank
  • additional 3 flat triangular shank drive shaft designed to fit a 3/8ths drill chuck for improved torque and centering.
  • oil-impregnated sintered bronze bushings, carry a higher load, need less maintenance, and damp vibration better than their rolling-bearing counterparts.
  • Strong aluminum frame
  • built in gear guard
  • Arrives assembled

Fluted Rollers

  • asymmetrical saw-tooth fluted rollers provide a cutting on cutting crush as used in high end commercial mill rollers
  • flutes are angled to provide additional strength, durability and wear resistance
  • cutting on cutting action reduced excess flour production and reduces husk damage to improving lautering.
  • made from heat treated 420 Stainless Steel for a long service life

Roller Gap Adjustment

  • set gap marks for ease of adjustment and repeatability
  • 0.0mm to 1.9mm infinitely adjustable gap setting for precision control and accuracy
  • 304 stainless steel the eccentric adjustor
  • Quick Adjustment side locking pins

Gear Driven Rollers

  • Gear rollers make it possible to do away with course husk ripping and tearing knurls found on other mills.
  • Only geared roller mill on the market that is fully adjustable at both ends.
  • Synchronized rollers for consistent crush which is sensitive to RPMs and differential roller speeds
  • The geared rollers ensure an easy and smooth feed of malt into the grain mill from start to finish.

These mills reflect 10 years of design evolution, experience and learning.

The gear driven, asymmetrical saw-toothed fluted rollers are the heart and soul of our mill. Some customers have removed the gears to test if it’s a sales gimmick, all have promptly reinstalled the gears after they noticed a decline in the crush quality. MillMaster have tested the mill without gears because if they were redundant they would have removed them and passed the savings onto customers. The gears are not there for show, they improve the crush distribution and ensure grain feeds into the rollers every time.

They have used knurled rollers in the past which suffered from wear and less than Ideal ASBC grist distribution. After testing dozens of fluted rollers designs they arrived at a design based on commercial mills that use a cutting on cutting saw tooth pattern. This flute pattern reduced husk damage and reduced the flour proportion in the grist. The fluted rollers improved the stability of the grist distribution at different roller speeds. The fluted rollers deliver a more consistent grist distribution regardless the roller speed of between 120 to 530 RPM. The cutting edge of the flute is stronger than a knurled roller because it has more material behind it. Made from a durable heat treated 420 Stainless Steel. Because even flutes on commercial 6 roller mills eventually dull after many tons and years of operation, the unique design of the mill allows you to flip the mill upside down and the roller that was the back edge /dull roller becomes the new cutting edge roller and the dull cutting edge becomes a new back edge/dull roller. In effect increasing the service life of the mill. MillMaster doubt the average home brewer will experience flute wear which would require flipping the mill, but a home brew shop milling tons of malt may experience this at some point in the future.

They have used sealed roller bearings in the past, which allow you to freely spin the rollers with your fingers for longer, looks cool for sure, but when milling by hand or using a motor the difference in friction and resultant torque required to power the mill is negligible. There are no savings in motor size or muscle power that could justify the use of rollers bearings in a home brew mill. MillMaster no longer use sealed roller bearings because they simply don’t withstand the high radial loads required for milling. It did take years, even power users such as home brew shops to experience roller bearing failure but it did happen. That’s why MillMaster use bronze bushings not roller bearings.

Please Note: This mill does not come standard with the Hopper. A hopper for this mill is available HERE

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