Proportional Caliper Devices

The proportional caliper device determines the percentage of flat and/or elongated particles in coarse aggregates.  Constructed of steel for strength and durability. Also plated for corrosion resistance.  The 6″ x 16″ base plate has four rubber feet for stability and convenience in tabletop testing.

The Four-Station Proportional Caliper provides openings for all four ratios simultaneously.

The ratio desired is obtained by selecting one of four adjustable positions:

• 2=1:2
• 3=1:3
• 4=1:4
• 5=1:5