The UDY Cyclone Sample Mill is designed for rapid grinding of a wide variety of soft to medium-hard materials. It is extensively used in milling grains, feeds, forages, leaves and similar materials prior to near-infrared reflectance (NIR) measurements or chemical analysis. Other applications include small to medium volume milling of: pharmaceuticals, detergents, fertilizers, plastics, coal, wood chips, and friable materials.

UDY Cyclone Sample Mills use a patented method of grinding. High speed rotation of the impeller and air currents throw particles into, and rolls them around the grinding ring. Particles remain in the grinding chamber until impact-shattering and abrasion make them small enough to flow out the exit with the air current. The air flow also minimizes heating and therefore eliminates thermal degradation.

The UDY cyclone Sample Mill is powered by a 3/4 horsepower, totally enclosed induction motor with power transfer and speed step-up to 12,600 rpm using joined belts. The grinding - ring has tungsten carbide abrasive particles on a steel base. Ground material is collected in 120 ml glass bottles, fabric bags, or other containers.

Sample Feed Into the Mill:

( Always check: the tensioner hex screw on the back of the Grinding Chamber. The brass washer should be free to spin with your finger. This ensures the proper belt tension.

The Cyclone Sample Mill must be on and running before the sample is fed into it.)

Material may be poured slowly into the hopper of the standard Mill Cover where feed into the Mill is somewhat controlled by the bin gate, or the optional Sample Feed Controller, The Sample Feed Controller uses an auger to feed material into the Mill and is especially recommended when maximum consistency of particle size output is desired, such as for NIR testing. Other benefits include convenience of automatically feeding material into the Mill and elimination of accidental overloading. The maximum initial particle size the Sample Feed Controller can accept is 5 mm (1/4 inch). The feed rate of the Controller varies with the material.
Sample Feeder Control
If you look at the 3010-030, large image at this link, you'll see how the feeder fits onto the Cyclone Mill. Also see: 3010-016 for 110 Volt version and part number 3010-015 for 220 Volt 50/60 Hz version. Feeder Electrical Wiring
US Patent No. 3,754,715 and several foreign patents.

The UDY Cyclone Sample Mill is designed for long life. Many Mills have been in use over 15 years. The parts subject to wear are all replaceable. The frequency of replacement depends on the abrasiveness of the material. UDY products have a one year parts and labor warranty.