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Trakpactor 550SR Blasted Limestone

Application Summary

At this site in Ireland, a Powerscreen Trakpactor 550SR impactor is working in a blasted limestone application with a 0-500mm minus feed material. The mobile crusher is delivering 298tph (328 US tph) of 45mm minus on-specification crushed aggregate with 70tph (77 US tph) of bypass material at 35mm minus. The customer was very impressed with the production of this rock crusher.

Setup

Trakpactor 550SR
Material feed size: 0-500mm (19 3/4″ minus)

Pre-Screen

Top deck: 50mm (2″) punch plate
Bottom deck: 35mm (1 3/8″) mesh
Impact crusher chamber
Top apron: 100mm (4″)
Bottom apron: 30mm (1  3/16″)
Ceramic blow bars: 2 x half, 2 x full

Post-Screen

45mm (1 3/4″) mesh recirculating back to the crusher

Production 

Producing 298 tonnes per hour (328 US tph) of 45mm minus (1 3/4″ minus) end product
Producing 70 tonnes per hour (77 US tph) of 35mm minus (1 3/8″ minus) pre-screened bypass material


0-500mm feed material

Blasted limestone to be crushed by an impactor

0-45mm end product

Crushed limestone after being downsized by impactor