Sheen Instruments - manufacturer and supplier of quality testing instruments for the paint and coatings industry

Sheen Instruments - quality testing instrumentation for paint and industrial coatings

Pendulum Hardness Rockers

Pendulum Hardness Rockers

An apparatus internationally approved for coating hardness evaluation. The test consists of measuring the damping time of a pendulum oscillating on a test surface. The hardness is function of the oscillation amplitude, detected by electronic optical cells from 2 specified pendulum deflection positions. It decreases faster on softer medium.

3 versions available:


The 200g triangular pendulum rests on 2 x 5mm ball bearings.
Reference on glass plate:
250 ±10s. (172 to 185 oscillations), deflections from 6° to 3°.


The 500g square pendulum rests on 2 x 8mm ball bearings.
Reference on glass plate:
430 ±10 s, deflections from 12° to 4°


Combination of both methods in one unit.


  • High precision instruments, electronic counting and display
  • Top quality components to ensure long term stability and reliability
  • Easy cleaning and maintenance
  • Standard delivery: level-adjustable mainframe, pendulum(s), draught screen, reference plate, spirit level
  • 240V/50 Hz or 110V/60 Hz (please specify when ordering).

International standards

KOENIG: Astm D4366, ISO 1522
PERSOZ: NF T30-016

Get a quotation

SKU Name Add to quote
SH707K Pendulum Tester for Koenig (Hard coatings)
SH707KP Pendulum Tester for Persoz and Koenig
SH707P Pendulum Tester for Persoz (Soft coatings)


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