Order no.: PCE-HT-225A

Hardness Test Instrument PCE-HT-225A

£ 346.00
£ 415.20
price ex. (VAT / delivery)
Delivery time: 1-2 working days


PCE-HT-225A Hardness Test Instrument

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

The quality of concrete is judged mainly on the basis of compressive strength, since compressive strength is directly responsible for the structural behavior and durability of concrete constructions. The compressive strength is designated by a sequence of letters and numbers. For example, "B 25" is considered normal concrete with a compressive strength of 220 kg / cm² or 3100 psi. There are many intermediate values ​​up to the highest strength class of "B 55." Thus, using this concrete hardness tester, you can quickly, easily and accurately classify concrete strength.

For psi concrete 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 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

Delivery Scope

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