The SilverSchmidt ST/PC is the first integrated concrete test hammer featuring true rebound value and unmatched repeatability.  
Two factors contribute to the improved performance of this concrete test hammer over its predecessors: 

• Velocity based detection of the rebound quotient
• The lightweight hybrid design of the impact plunger is made from aerospace alloy, matched to the elastic properties of the concrete and equipped with a hardness steel cap

Independent validation testing by BAM (Federal Institute for Materials Research and Testing, Germany) has shown the SilverSchmidt ST/PC to have less dispersion than the classical concrete test hammer over the entire range.  
The unique design and high quality construction of the concrete test hammer SilverSchmidt ST/PC makes rebound hammer testing quicker and more accurate than ever before. 

• The SilverSchmidt ST/PC concrete test hammer combines a high measurement accuracy with an unmatched repeatability.
• The rebound value requires no angular correction
• The concrete test hammer offers customer conversion curves for a wide range of compressive concrete strengths, including low fc (<10 N/mm², 1’450 psi) and high strength concrete (up to 100 N/mm², 14’500 psi)
• A large number of measurement points can be easily collected by the concrete test hammer and automatically evaluated according to statistical data
• The concrete test hammer offers automatic conversion to the required measurement unit (MPa, N/mm², kg/cm², psi)
• Ideally suited for on-site tests of concrete
• The concrete test hammer is suitable for testing a wide variety of concrete, mortar and rock, but also for testing metal castings
• Handy for difficult to access or confined test areas (i.e. working overhead)
• Assessment on young, soft concrete with mushroom plunger of the concrete test hammer, eg. asphalt strength testing
• It can be even used for underwater applications

The following standards can be applied to the concrete test hammer:

• EN12504-2 (European Standard)
• ASTM C 805 (North American Standard)
• JGJ/T 23-2001 (Chinese Standard)

Technical data

• Impact energy: 0.735 Nm
• Hammer mass: 135 g
• Spring constant: 0.26 N/mm
• Spring extension: 75 mm
• Housing dimensions: 55 x 55 x 255 mm
• Display: 17 x 71 pixels; graphic / alphanumeric
• Battery life: >5000 impacts (before recharging)
• Charger connection: USB type B (5V, 100 mA)
• Concrete compressive strength: 5-30 N/mm² (725-4351 psi)

Warranty: 24 months