LOS ANGELES ABRASION TESTING MACHINE:

AS PER IS: 2386 (Part IV) ASTM: C 131, AASHO T96.

Introduction:

Determination of aggregate abrasion value. Used for testing crushed rock, crushed slag, crushed and uncrushed gravel for resistance to abrasion.

General Description and Specifications:

Consists  of : -

• A  hollow  steel cylinder, closed at both ends,  having  an  inside diameter of 700 mm and inside length  of  500  mm. 
• The cylinder mounted on a sturdy frame on ball bearings.
• The opening will be closed dust tight with a removable bolted cover in place. 
• A detachable  shelf  which  extends  throughout  the drum catches  the  abrasive  charge and does not allow it to fall  on  the  cover.
• The drum is rotated at a speed of 30-33 RPM by an electric motor through a heavy duty reduction gear.  Fitted with revolution counter and push button starter. 
• Supplied complete with a tray for collection of the material.                                       
• Abrasive Charge Consists  of  set of 12 Nos. cast iron spheres or steel spheres  (Hardened  steel  balls) approximately  48 mm diameter  each  weigh between 390-445 gm.
• Complete as above. Suitable for operation on 440 volts, 3 phase, 50 cycles, A.C. supply.