Roll Hardness Test Instrument PCE-HT-225A

Order no.: PCE-HT-225A
US$ 495.00
ex. VAT, ex. delivery costs
Available in: 1-2 days

PCE-HT-225A Roll Hardness Test Instrument

PCE-HT-225A is a roll hardness test instrument or paper roll test hammer, also called a roll rebound hammer or Swiss hammer, used for non-destructive measurements of surface hardness and compression strength. Suitable for use with rolled paper, concrete, rock and building materials, this manufacturer-calibrated manual rebound hammer is economical, practical and easy to use.

The quality of rolled paper is judged mainly on the basis of compressive strength, since compressive strength is directly responsible for the structural behavior and durability of rolled paper. For psi roll hardness measurement, download the chart to convert rebound value to psi. Optional test anvil to verify accuracy listed under accessories. 

- Employs mechanical rebound test method - no digital components
- Kg/cm², psi, and MPa conversion tables on back of instrument and in user manual
- Manufacturer calibrated - ISO calibration certificate available as an option (see accessories)
- Ideal for use in rolled paper testing, construction, structural engineering and material strength testing
- Includes two-year warranty against manufacturer defects 
- Optional test anvil to verify accuracy listed under accessories
Test range10 ... 60 MPa or 100 ... 600 kg/cm² (1450.38 ... 8702.26 psi)
Impact energy2.207 J or N-m / 1.6278 ft-lb
Impact stroke75 ± 0.3 mm / 2.95 ± 0.012 in
Spring rigidity785 J or N-m / 578.99 ft-lb
Average rebound value (for calibration)80 ± 2
Radius of spherical tip25 ± 1 mm / 0.99 ± 0.04 in
Adhesion of the measurement tip0.65 ... 0.15 N
Rebound value range0 to 100 (without dimensions)
Conversion tablesOn back of instrument and in user manual; to convert rebound values indicated to kg/cm² and MPa (with introduction of impact angle)
WeightApprox. 1 kg / 2.21 lbs
DimensionsApprox. 66 x 280 mm / 2.6 x 11.02 in

1 x PCE-HT-225A roll hardness test instrument
1 x Grindstone for rough surfaces
1 x User manual
1 x Carrying case