THE Experts In Size Reduction
Quality Equipment
Building The Best Since 1882!
Gap Mill GM-D


The Bauermeister Gap Mill is a unique design for fine grinding down to the 25um size. The proven design features an adjustable grinding gap between the conical shaped rotor and a corrugated baffle. This combination delivers improved grinding performance and accurate particle sizing without screens. The conical shape of the rotor allows the mill to impact the product with increased tip speeds as the particles pass through the grinding area. This design allows the mill to grind particles finer in one pass where competitive mills often require internal recirculation to achieve the same results.

Product can discharge from the lower section by gravity within the air flow, where it can be pneumatically or for a low profile, tangentially The reversible grinding elements on the rotor are u-shaped and cast from wear-resistant alloys for increased durability.

The Bauermeister Gap Mill is available in four production sizes. The medium diameter of the rotors are 200mm, 400mm, 800mm and 1,200mm.  Depending on the product, capacities range from 20 lbs/hr up to 20,000 lbs/hr.

• Rotor rotation is erversible to extend use and minimize down time.
• U-shaped grinding elements are reversible to maximize usage.
• Grinding gap adjustable from 1mm to 5mm.
• Variable frequency drive available.
• State-of-the-art technology conforming to the latest safety standards (10 bar explosion pressure shock resistant and conform to 94/9 EC regulations)
• Constructed of carbon steel or stainless steel.
• Drive power from 10 Hp up to 250 Hp available.
• Low maintenance.
• Cold & Inert grinding is possible.


• Barley malt
• Candy rework
• Compound coatings
• Dextrose
• Gelatin
• Lactose
• Oats
• Psyllium
• Rice
• Soy
• Starch
• Sugar
• Sugar Substitute
• Wheat

• Aluminum Hydroxide
• Aluminum Oxide
• Copper
• Gypsum
• Limestone





Bottom Discharge option available.



Motor HP 10 - 20 25 - 50 60 - 100 150 - 250
Weight (lbs.) 1,400 2,200 4,500 12,000
Air Flow CFM 600 1,200 2,100 4,000