Abrasion testing machine is used to test crushed rock, crushed slag and uncrushed gravel for resistance to abrasion. The machine determines the resistance to wear of small size coarse aggregates and crushed rocks.

Salient Features
The important features and specification of abrasion testing machine are :

• The machine comprises of a hollow cylinder, which is horizontally mounted on a strong frame on ball bearings.
• The machine is supplied with abrasive charges consisting of a set of 12 hardened steel balls having approximately 48 mm diameter.
• The cylinder has an opening, which can be closed with a dust tight cover to promote charging and discharging the cylinder with the material under test.
• It consists of a detachable extension that extends throughout the interior of the cylinder and prevents it from falling on the cover.
• The cylinder is rotated by an electric motor through a heavy reduction gear.
• A revolution counter is attached to the frame and provided with tray for collection of materials at the end of the test.

Applications
The abrasion testing machine is mainly used to determine the resistance to wear of small size coarse aggregates and crushed rocks. Some of the areas where it finds application are :

• Construction (Buildings, Dams, Roadways, Bridges, etc.)
• Concrete Industry
• Mining
• Paint Industry
• Plastic Industry
• Aggregate & Rock Testing