Bond Work Index Test Ball Mill

This laboratory ball mill is designed for determining the grindability and power requirements of materials through work index testing. It is widely used for grinding tests on various ores and allows operation based on time or number of revolutions, depending on the required grinding conditions.

Operational Notes

• Can be used for controlled grinding cycles
• Supports accurate and repeatable test results
• Internal dimensions maintained for consistency in testing

• Determination of work index (grindability testing)
• Laboratory grinding of ores
• Mineral processing research and analysis
• Evaluation of grinding power requirements

Mill size :

• 12″ x 12″ (internal dimensions tolerance within 0.10″)

Ball charge :

• 44 ½ lbs (steel balls)

Material of construction :

• Mild Steel (1018)

Shaft diameter :

• 1.4370″ to 1.4375″

Shaft tolerance after weld :

• 0.00005″

Keyway tolerance :

• 0.002″ (diameter/width), 0.004″ (centerline)

Tube internal diameter :

• 12.030″

End cap matching tolerance :

• within 0.10″

Internal length (cap to cap) :

• within 0.100″

Door fit tolerance :

• within 0.015″

Concentricity after weld :

• within 0.003″ to 0.005″

• Machined steel drum construction
• Electric motor with clutch system
• Revolution counter
• Motor starter and control system
• Can operate based on:
• Time (using lab timer)
• Number of revolutions
• High precision internal dimensions
• Includes table stand
• Includes receiving pan
• Includes hand screen pan
• Supplied with steel ball charge
• All parts deburred and finished after welding
• Precision assembly with welded shafts and end caps