The Pendulum Skid Tester from James Cox and Sons measures skid resistance when a rubber slider on a 20in (508mm) pendulum arm contacts a test surface. A drag pointer on a 0-150 scale measures friction. The unit quantifies the potential of automotive tire skidding and also evaluates skid resistance of surfaces and polishing tendencies of aggregates. A supplementary 0-10 scale and a special baseplate are provided for work using smaller sliders. Adjustments to the arm position and base maintain a true circular path when operated on sloping road surfaces. Sliders are made with a graded rubber strip bonded to an aluminum backing plate.

Gilson supplies both large and small of rubber sliders mounted to aluminum plates or as unmounted replacement pads. Order 3in (76mm) wide Large Sliders for testing road surfaces or 1-1/4in (32mm) wide Small Sliders for testing polishing wheel specimens.

The Tester includes, setting gauge, three wrenches, water bottle, instrument case, traceable calibration certificate, and instructions. Large or small sliders are ordered seperately. The Pendulum Skid Tester is supplied with a manufacturer's five-year warranty. When evaluating specimens from Accelerated Polishing Machines, order Laboratory Base Plate HMA-204W and HMA-207 Small Sliders seperately. Base Plate is 25x19x2in (635x480x50mm), LxWxH, including a specimen mounting block. Inquire for special 3in smooth surface slider pads for floor and walkway surface safety testing. Order HMA-208 6x24in (152x610mm) No.60 grade silicon carbide Slider Conditioning Cloth to condition sliders per ASTM E 303. Tester is 28.3x28.7x8.7in (720x730x220), WxDxH. Est. Ship Wt.: 75lb (34kg).