Dorry Abrasion Testing Machine
Product Details:
For determination of the resistance of aggregates to surface water by abrasion consisting of:

• A circular disc mounted on a reduction gear driven by an electric motor having about 28-30 rpm.
• Two large trays for holding the sample.
  
• Two small trays for sample.
• Two conical hoppers for sand.
  
• Two sample tray holders.
• Two sets of weights for loading the samples.
  
• A revolution counter.
• Suitable for operation on 220V ~, 50Hz. Supply.