Rockwell Vertical Mill 21 100

Rockwell Vertical Mill 21-100 in Sand and Aggregate Production

The Rockwell Vertical Mill 21-100 is a robust grinding machine designed for precision milling in sand and aggregate processing lines. Its vertical spindle design ensures efficient material reduction, making it ideal for producing high-quality manufactured sand (M-Sand) from hard rocks like granite, basalt, or limestone.

Key Features & Parameters

Parameter Value
Max Feed Size 30 mm
Output Size Range 0-5 mm (adjustable)
Motor Power 75 kW
Capacity 50-100 t/h
Shaft Speed 1,200 rpm

Integration in Crushing-Sand Making Lines

The mill excels as a tertiary crushing or sand-shaping unit downstream of jaw crushers and cone crushers. Paired with vibrating screens and classifiers, it ensures uniform grain distribution—critical for concrete and asphalt applications.

FAQ

– Q: Can it handle wet materials?
A: No, the Rockwell 21-100 operates optimally with dry feed (<3% moisture).

– Q: Wear part lifespan?
A: Tungsten carbide rollers last ~800 hours under abrasive conditions.

A Case Study: Limestone M-Sand Plant

A Texas-based plant achieved 95% cubical particles using Rockwell 21-100 after a cone crusher, reducing cement dependency in ready-mix concrete by 12%. Maintenance intervals were extended by 30% compared to horizontal mills.

For rugged performance in aggregate refinement, this vertical mill balances precision and durability—key for modern sand processing demands.

Knowledge