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SilverSchmidt Concrete Test Hammers

Article No. 15039

Silver Schmidt OS8200 N

  • SilverSchmidt Concrete Test Hammer Type N
  • Fresh, low (<5 Mpa) normal, and high concrete strength estimation
  • Concrete uniformity testing
  • Custom correlation to compressive strength
  • In-situ rock testing on massive rock 
  • Compressive strength estimation; concrete: 10 to 70 N/mm2/ 1450 to 10152 psi
  • Screening of concrete to identify coring locations

Select your model

$2,836.00 excl. taxes & shipping cost


  • Proceq Silver Schmidt OS8200 is as accurate, reliable, and versatile as ever - and now, connected, thanks to its optical measurement technology paired with digital productivity features and user-friendly mobile apps.
  • Patented optical technology delivers compressive strength measurements with a higher range and far lower dispersion than any classical rebound hammer, and our versatile connectivity increases operator productivity and makes instantaneous reporting possible, from anywhere, anytime.
  • Strength estimation at a fraction of the cost and lead time, and without the mess of coring
  • Best-in-class strength correlation
  • Applicable from fresh to high strength concrete
  • Instant report generation on the go
  • Long service intervals
  • Combination With Other Methods - Ultrasonic pulse velocity (SONREB) with Pundit 200
  • Stand-alone digital hammer with automatic calculation of the rebound value.
  • The Q-value brings greater accuracy at higher strengths. Independent testing by the German Committee for Structural Concrete and the Bundesanstalt für Materialforschung und Prüfung (BAM) has consistently demonstrated that the Q-value featured in Silver Schmidt OS8200 is much better suited for working with high strength concrete. Furthermore, similar studies carried out in Germany, China and Japan have proven that the Q-value delivers tighter, more accurate correlations for custom material curves.
  • Digital hammer wirelessly connected to a Bluetooth printer for direct print-out of test result
  • Connected digital hammer with instantaneous reporting and data sharing thanks to a user-friendly mobile app (Apple® iOS or Android™)
  • Original Schmidt Live mobile app
    • Flexibility for all applications - Correlation to custom materials in accordance with major standards. Apply user defined corrections for carbonation, form factors, etc.
    • Compliance to standards - Select standard units and form factor. Hammer verification management according to requirements of major standards. Automated EN13791 test region screening test report
    • Collaboration and reporting - Visual report generation using lists, bar charts and statistics. Single and multiple series export in PDF or CSV format. Logbook annotations for full traceability (geolocation, text, images, voice)

Technical Attributes

  • Data
    Impact Energy:2.207 Nm (N), 0.735 Nm (L)
    10 to >100 N/mm2 (1,450 to >14,500 psi)
    L-hammer with optional mushroom plunger: 5 to 10 MPa (725 to 1,450 psi)
    Instrument Firmware:Automatic calculation of rebound value according to international standards
    Display:Any compatible Apple® iOS device
    Memory:Instrument memory > 20,000 impacts, Display memory - Memory of iOS or Android device
    Connections:Low energy bluetooth, USB for charging and updates
    • Impact angle independent
    • Displays the series on-screen as you work
    • Series validity checked automatically
    • Review an entire series
    • Delete impacts
    • Test region reporting
    • Select units, form factor and correlation curves
    • Create your own custom curves
    • Create custom curves databases for your own mixes
    Report Generation:Single, multiple series, test region (uniformity, EN13791)
    Languages:English, German, Japanese, Chinese, Korean, Spanish, Portuguese, Italian, French, Russian
    Battery:Standard AAA, alkaline or rechargeable
    Battery Lifetime:> 20,000 impacts between charges
    Operating Temperature:0° to 50° C


EN 12504-2, EN 13791; ASTM C805; ROCT 22690


  1. To operate the concrete test hammer first place the impact plunger against test surface
  2. Apply pressure until plunger disappears
  3. The hammer will release.
  4. The scale pointer reading gives rebound value in percent of the forward movement of the hammer mass.


Delivery Content

SilverSchmidt Hammer - Test Hammer, battery charger with USB cable, chalk, documentation, data carrier with software, carrying strap, grinding stone, carrying bag and factory certificate

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