Cyclone sample mill Cyclone Sample Mill –
BELT DRIVE

  • Model 3010-030 (115 VAC 50/60 Hz)
  • Model 3010-019 (220 VAC 50/60 Hz)

General Description:
The UDY Cyclone Sample Mill shown in Figure 1 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) measurement 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. The grinding chamber is illustrated in Figure 2. 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 removes essentially all material and makes clean out unnecessary. The air flow also minimizes heating and therefore eliminates thermal degradation.
Figure 1. Cyclone Sample Mill 

Sample Mill		 Figure 2. Cyclone Sample Mill Grinding Chamber
    
With Grinding Chamber
The UDY Cyclone Sample Mill is powered by a 3/4 horsepower, enclosed 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.MATERIALS MILLABLE:
Materials which tend to gum-up and present problems in other dry mills can often be ground in the Cyclone Sample Mill because of its patented grinding action and the low residence time in the grinding chamber. A general guideline is that materials may contain up to 20% oil or 15% moisture. Some materials containing higher levels of moisture or oil can be ground. Marginal cases are substantially aided by use of a vacuum cleaner to increase air flow. This does not result in loss of sample.

Since many properties influence grinding characteristics, UDY Corporation personnel should be consulted regarding experience with specific materials. The applications laboratory will be happy to grind test samples and provide recommendations. If samples are corrosive or trace contamination is a concern, UDY personnel should be consulted.