Pendulum Coefficient of Friction Skid Tester. Test Skid resistance of floors, pedestrian walkways and road surfaces, PSV (polished stone value) of aggregates.

The Pendulum Skid Test measures the frictional resistance between a rubber slider mounted on the end of a pendulum arm and the test surface. This provides highway engineers with a routine method of checking the resistance of wet and dry surfaces to slipping and skidding, both in the lab and on site. It is based on the Izod principle: a pendulum rotates about a spindle attached to a vertical pillar. At the end of the tubular arm a head of known mass is fitted with a rubber slider. The pendulum is released from a horizontal position so that it strikes the sample surface with a constant velocity. The distance travelled by the head after striking the sample is determined by the friction of the sample surface. A Skid Resistance Measurement is obtained.

Your choice of slider type is included as standard.

  • TRRL3.0, Slider 55 Road surfaces
  • TRRL 1.250, Slider 55 PSV Test
  • FOUR S, Slider 96 Internal Floors



  • Designed for laboratory and in situ road surface testing
  • Dispatched calibrated to EN1097-8
  • Meets international standards: AS/NZS 4586:1999, BS EN 1097-8, ASTM E303 and more
  • Low friction arm, and lightweight pointer
  • Comes with integral ‘F’ scale for use with small slider set for 76mm slide length. (PSV test)
  • Repeatable and reproducible results
  • Supplied with robust, lockable carrying case



  • Rocker weight: 1500 grams ±30 grams
  • Distance between rocking centre and center of gravity: 410mm ±5mm
  • Positive static pressure on pavement: 22.2kN ±0.5kN 
  • Package dimension:77cm x 78cm x 51cm
  • Net weight of tester: 17kgs
  • Gross weight approx: 45kgs




Shipping Weight 35.0000kg
Shipping Width 0.700m
Shipping Height 0.400m
Shipping Length 0.700m
Shipping Cubic 0.196000000m3

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