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Schmidt rebound hammers for concrete strength and rock testing
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The original rebound test hammers for compressive strength and homogeneity assessment
The Original Schmidt was invented and introduced into the market by Proceq in the 1950s. Since that time it has become the world’s first and most widely used instrument for non-destructive estimation of concrete strength properties, asphalt, mortar, rock and paper. Proceq rebound hammers are available in models with different impact energies, each designed for a specific test application. The SilverSchmidt is the latest generation of rebound hammer, combining the ground breaking features of the Original Schmidt with the best of today’s technology. It is the first integrated rebound hammer featuring true rebound value and unmatched repeatability.
| Models |
Original Schmidt Live |
SilverSchmidt |
Original Schmidt |
Schmidt OS-120 |
RockSchmidt |
| Description | The Original Schmidt Live is a uniquely versatile hammer that can be used as stand-alone analog hammer, a stand-alone digital hammer, together with a Bluetooth printer and finally as the world’s most advanced R-value concrete test hammer with the Schmidt Live app | The SilverSchmidt is a unique integrated concrete test hammer featuring true rebound value calculated from the quotient of the impact velocity and rebound velocity to provide maximum accuracy. | The classic Original Schmidt hammer that became the basis of every major rebound hammer testing standard worldwide. | The Schmidt OS-120 pendulum hammers are designed to test on softer material such as light weight concrete, gypsum boards, fresh concrete and the mortar of joints in brickwork. | The RockSchmidt is a variation of the SilverSchmidt adapted specifically for rock testing applications such as UCS correlations or to predict penetration rates for tunnel boring machines and rotary drum cutters. |
| Your Benefits |
Comprehensive Apple iOS app for measuring, reporting and analysis Web reporting tool for instant offsite data availability and synchronizing Light and strong fiber-reinforced shell Powered by flight-safe AAA batteries Dual displays: analog and backlit digital All mechanical components are Original Schmidt components to ensure standards compatibility and durability |
Automatic calcuation of rebound value according to international standards Best in class correlation with least dispersion for specific concrete mixes Extremely durable with long service intervals when compared with classical hammer |
Various models with different impact energies to cover a wide range of applications Proven durability and quality compared with low cost copies Established Proceq Swiss Made accuracy and reliability |
Only rebound hammer that provides a test result at compressive strengths below 5 Mpa Large, half circular scale with high resolution Two models for fresh concrete and mortar applications |
Correlations to UCS using both ASTM and ISRM recommendations as well as user defined statistis No need to manually record the impact values in the field Extremely durable with long service intervals when compared with classical hammer |
| Impact Energy | 2.207 Nm (N), 0.735 Nm (L) | 2.207 Nm (N), 0.735 Nm (L) | 2.207 Nm (N), 0.735 Nm (L) | 0.833 Nm | 2.207 Nm (N), 0.735 Nm (L) |
| 10 to 70 N/mm2 (1’450 to 10’152 psi) |
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10 to 70 N/mm2 (1’450 to 10’152 psi) | 1 to 5 N/mm2 (145 to 725 psi) | 20 to 150 MPaUnconfirmed ( or Uniaxial ) Compressive Strength (UCS) | |
| Applications | |||||
| Paper | Type L | x | Type L | x | x |
| Concrete | √ | √ | √ | √ | x |
| Geology | √ | x | √ | x | √ |
| Uniformity Testing | √ | √ | √ | x | √ |
| In-situ strength estimation | √ | √ | √ | √ | √ |
| Custom correlation to compressive strength | √ | √ | x | x | √ |
| Low strength (<5 Mpa) concrete testing | x | x | x | √ | x |
| Quality testing of mortar in brickwork | x | x | x | √ | x |
| Rock testing | √ | x | √ | x | √ |
| Large paper rolls | √ | x | L | x | x |
| Additional Applications | |||||
| Features | |||||
| Instrument Firmware |
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| PC Software | Hammerlink for rapid uniformity testing with the summary view, user defined conversion curves (polynomial and exponential), user defined statistical methods and export to third party software (PC N and PC L versions only) | RockLink for data assessment and export to third party software | |||
| Display | Any compatible Apple iOS device | Integrated digital display | Mechanical display | Mechanical display | Integrated digital display |
| Memory | 2,000 measurement series | 400 series of 10 measurements (PC N and PC L versions only) | 400 series of 10 measurements | ||
| Connections | USB interfere to PC | USB interfere to PC | |||
| Measurements |
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| Standardization | |||||
| Standards |
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| Guidelines |
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| Accessories | |||||
| Measurement Accessories |
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Mushroom plunger (341 90 005) | Registration paper Model NR/LR (5 rolls/pack) (310 99 072) | ||
| Verification Tools |
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Testing anvil „P/PT/PM“ (310 10 000) |
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