Point Load Tester: Portable Rock Strength Testing for Field Applications

Rock Strength Index Apparatus measures the strength of rock samples, including irregularly shaped specimens, through direct compression tests. This device provides accurate and reliable measurements, making it a valuable tool for rock mechanics and geotechnical studies.

The apparatus features a 60 kN capacity load frame with a hydraulic loading ram, allowing it to test samples up to 102 mm in diameter. It also includes a digital display for precise load readings, a ruler for measuring platen distances, and compatibility with compression platens for small-core and cylindrical specimen testing. Its portability and resistance to failure shocks make it a practical tool for field and laboratory use, supporting engineers and researchers in evaluating rock materials' strength and integrity efficiently.

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Yes, the Rock Strength Index Apparatus meets the ASTM D5731 standard. This standard specifies the procedures for determining the point load strength index of rock, a critical parameter for assessing rock strength and durability.

In compliance with ASTM D5731, the system provides accurate and reliable testing results, aligned with globally recognized industry benchmarks. This compliance benefits geotechnical engineers and researchers by providing consistent and standardized measurements, essential for designing safe and efficient construction and mining projects. The apparatus’s ability to meet this standard makes it a trusted and dependable tool in rock mechanics.

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The Rock Strength Index Apparatus is equipped with a load frame capable of applying up to 60 kN of force, making it suitable for a wide number of rock strength testing applications. This high capacity allows the device to handle many sample types, including irregularly shaped specimens, providing flexibility and versatility in testing scenarios.

The load is applied through a hydraulic loading ram, which is operated using a hand pump. This mechanism offers precise control over the force applied, resulting in accurate and consistent results during testing. The hydraulic system's simplicity and reliability make it easy to operate, even in field conditions. Its robust construction allows for durability and consistent performance, making it an invaluable tool for geotechnical engineers, researchers, and professionals in the mining and construction industries who require precise rock strength assessments.

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The Rock Strength Index Apparatus is designed with an adjustable frame, allowing it to test rock samples with diameters up to 102 mm. This flexibility makes the device suitable for a broad range of sample sizes, accommodating both standard and irregularly shaped specimens.

The adjustable frame allows for precise alignment of test samples, contributing to accurate and reliable strength measurements. This feature is particularly beneficial for geotechnical engineers and researchers who work with diverse sample dimensions, enabling consistent testing of different rock types and sizes. The ability to handle specimens up to 102 mm in diameter greatly increases the functionality of the apparatus, making it a valuable tool for rock mechanics research.

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The Rock Strength Index Apparatus is equipped with a ruler assembled on the frame, which enables direct measurement of the distance D between the conical plates before and after the test. This feature provides precise data on the rock sample's deformation during compression testing.

By allowing accurate measurement of the platen distance, the ruler enhances the reliability of the results, making certain that critical parameters such as sample displacement and deformation are accurately recorded. This is particularly valuable for geotechnical engineers and researchers analyzing rock behavior under applied loads. The integrated ruler simplifies the testing process by providing immediate, on-the-spot measurements, supporting consistent and detailed evaluations of rock strength and structural integrity.

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The compression load in the Rock Strength Index Apparatus is measured using a pressure transducer paired with an advanced digital display unit. This setup allows for highly accurate and reliable readings, providing precise evaluation of rock sample strength.

The digital display resists failure shocks, maintaining consistent performance even under sudden or extreme load conditions. This robust feature increases the apparatus' durability and reliability, ensuring accurate measurements in demanding environments. The combination of a pressure transducer and advanced display simplifies the testing process, providing clear, real-time data for geotechnical engineers and researchers conducting rock strength analyses in both laboratory and field settings.

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Yes, the Rock Strength Index Apparatus can be adapted for testing small cores or cylindrical specimens when equipped with the accessory NG-D0550/D5. This optional accessory expands the functionality of the apparatus, allowing it to perform compression tests on smaller or uniquely shaped samples with precision.

This adaptability makes the apparatus suitable for a broad scope of applications, enabling researchers and engineers to test not only larger rock samples but also smaller cores that require detailed strength evaluation. By accommodating cylindrical and smaller specimens, the apparatus provides a comprehensive solution for rock mechanics testing, supporting diverse testing needs in geotechnical, mining, and construction industries.

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Yes, the Rock Strength Index Apparatus is highly portable as it is contained in an easily transportable plastic case. This configuration makes it possible that the device can be conveniently moved between testing locations, thereby allowing it to be used both in the field and in the laboratory.

The durable plastic case protects the apparatus during transport, making sure that all components remain secure and in optimal working condition. Its portability is particularly beneficial for geotechnical engineers and researchers who need to conduct on-site rock strength testing in remote or challenging environments, providing flexibility without compromising performance or reliability.

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Yes, the Rock Strength Index Apparatus includes an option for compression platens that enable compression testing on small cores and cylindrical specimens. This feature allows the tool to adapt to a large variety of sample types and sizes, providing precise strength measurements for smaller, more delicate samples.

This optional accessory increases the functionality of the apparatus, making it a powerful instrument for rock mechanics testing. By accommodating both standard and small cores, it supports researchers and engineers in conducting detailed analyses across a broad range of applications, from geotechnical studies to material evaluations in mining and construction.

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The Rock Strength Index Apparatus features a load range of 0 to 60 kN, providing flexibility to handle different rock strength testing scenarios. This range enables the device to apply precisely controlled forces to rock samples, resulting in accurate and reliable measurements regardless of sample type or shape.

The broad load range capacity makes the system flexible enough to accommodate both smaller cores and larger rock specimens. It is particularly suited to the geotechnical, construction, and mining industries, where evaluating rock strength is critical to project safety and efficiency. The ability to deliver consistent results across different load levels guarantees that the apparatus meets rigorous testing standards, making it a valuable tool for professionals conducting rock mechanics research or assessing structural integrity.

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The Rock Strength Index Apparatus is equipped with a digital display featuring a 2x16 character layout, providing a clear and concise interface for viewing test data. This format allows for the efficient presentation of key information, such as load values and testing parameters, during the testing process.

The simplicity and clarity of the display make it easy for operators to monitor readings in real-time, reducing errors and accurate data collection. The digital display enhances the apparatus' usability, supporting consistent performance in both laboratory and field settings. Its straightforward design facilitates engineers and researchers can focus on their analyses without being hindered by complex or unclear interfaces, which makes it an excellent tool for testing rock strength.

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The Rock Strength Index Apparatus has a resolution of 32,000 divisions, enabling precise and highly detailed measurements during rock strength testing. This level of resolution allows the instrument to detect even minor variations in force application, providing reliable and consistent data for assessing rock sample integrity.

Such high resolution is particularly valuable in geotechnical and rock mechanics studies, where accurate results are critical for assessing material properties and guaranteeing safety in construction and mining projects. By offering detailed measurements, the apparatus supports rigorous quality control and research, making it a trusted tool for engineers and researchers requiring precise and repeatable results. The fine resolution enhances confidence in testing outcomes, contributing to better-informed decisions in practical applications.

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Yes, the Rock Strength Index Apparatus comes equipped with a load pacer, which provides controlled and consistent load application during testing. This feature helps maintain steady force application, reducing variability and enhancing test results accuracy.

The inclusion of a load pacer is particularly beneficial for geotechnical and rock mechanics studies, where precise load control is necessary for reliable measurements. By assisting operators in maintaining a consistent loading rate, the load pacer improves test repeatability and guarantees compliance with industry standards. As a result of this functionality, the apparatus is a dependable choice for engineers and researchers conducting rock strength tests.

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The Rock Strength Index Apparatus measures load in two units: kN (kilonewtons) and MPa (megapascals). These units provide flexibility and convenience, allowing operators to choose the measurement format best suited to their testing needs.

• kN is commonly used to represent the force applied during compression testing, offering a clear and straightforward way to understand the load.

• MPa is used to express pressure, which is particularly useful when assessing stress distribution across rock samples.

The availability of both units provides compatibility with international testing standards and allows for multiple applications in geotechnical and rock mechanics research. This dual-unit system increases the usability of the apparatus, catering to engineers and researchers who require precise and adaptable measurements for rock strength evaluations.

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The Rock Strength Index Apparatus is equipped with a serial port for PC connection, enabling easy data transfer to external devices for analysis, storage, and reporting. This connection allows test results to be directly exported to a computer, facilitating efficient data management and integration with laboratory information systems.

The serial port connection provides reliable communication and compatibility with various data processing software, which makes it easy for engineers and researchers to document and interpret testing outcomes. This feature extends the functionality of the system, supporting detailed analyses and streamlined workflows in geotechnical and rock mechanics studies.

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The Rock Strength Index Apparatus delivers an impressive 1% accuracy, resulting in highly precise and dependable results during rock strength testing. This level of precision allows for minimal deviation in measurements, which is ideal for professionals who require exact data to assess material properties effectively.

This high accuracy makes it possible for the device to reliably detect variations in rock strength, which is necessary for critical applications in geotechnical engineering, construction, and mining. Engineers and researchers rely on this precision to make informed decisions regarding material stability and safety, whether for structural design, excavation planning, or resource evaluation.

The ±1% accuracy also guarantees compliance with industry standards, supporting consistent and repeatable results in a broad range of testing situations. This makes the instrument a trusted and valuable instrument for thorough and reliable rock mechanics analysis.

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The case dimensions of the Rock Strength Index Apparatus are 31.5 x 20 x 11 inches (80 x 50 x 28 cm). These compact dimensions make the device highly portable and easy to store, while also providing sufficient space to securely house all components.

The durable case design assures that the apparatus is protected during transport, whether it is being moved between laboratories or to field locations. This level of portability is particularly beneficial for engineers and researchers who need to conduct rock strength testing on-site or in remote environments. The thoughtfully designed case increases the practicality and usability of the apparatus, making it convenient for both routine and specialized testing needs.

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The Rock Strength Index Apparatus weighs 33 lbs (15 kg). As a result of its relatively lightweight, the apparatus is portable and easy to handle, which makes it convenient to transport it to different testing locations.

The relatively lightweight design is particularly advantageous for professionals conducting field tests or moving between sites, as it allows the apparatus can be set up and used with minimal effort. Despite its portability, the tool remains robust and durable, ensuring reliable performance in both laboratory and field conditions. This balance of portability and sturdiness makes it a practical tool for geotechnical engineers and researchers requiring a dependable solution for rock strength testing.

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