| Holmes Model 502XL
Holmes Pulverizer Model 502XL has a capacity of 400 grams of coal per minute using a screen with 0.024" diameter perforations and is recommended to pulverize minus-4 mesh coal to minus-60 mesh. This pulverizer is available either as a spring base or as an air base with a standard or an extended feed hopper. Motors and wiring for hazardous locations are available.

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| Holmes Model 500DG
Holmes Pulverizer Model 500DG has a capacity of 400 grams of coal per minute using a screen with 0.024" diameter perforations and is recommended to pulverize minus-4 mesh coal to minus-60 mesh. Its power requirements are 115 volt, single phase, 60 Hertz, and 15 amp. This machine is available with a standard or an extended feed hopper. It is also available without screens.

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| Holmes Model 350
Holmes Model 350 is a laboratory bench-type sample pulverizer that has a capacity of 400 grams of coal per minute using a 0.024” diameter perforated screen. It is recommended for pulverizing 4-mesh and smaller material to minus-60 mesh.

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