Automatic CBR Test Machine
UTS-0856.ACPR Automatic CBR Test Machine for Laboratory Applications
The UTS-0856.ACPR Automatic CBR Test Machine is an advanced solution for laboratory evaluation of the California Bearing Ratio (CBR) for road sub-bases, subgrades, and cohesive materials with particle sizes under 19 mm. Compliant with international standards such as EN 13286-47, ASTM D1883, and AASHTO T193, it ensures precise and reliable results for a wide range of soil testing applications.
Key Features
- Robust Design: Equipped with a durable two-column frame and an adjustable crossbeam driven by a 50 kN electromechanical ram.
- Accurate Measurements: Features a 50 kN load cell, a linear potentiometric displacement transducer (25 mm x 0.001 mm), and a penetration piston for precise data collection.
- U-Touch PRO Control Unit: Ensures seamless operation with real-time data display, programmable settings, and compliance with various testing standards. The control unit features an intuitive touchscreen interface and can operate as a standalone system or integrate with a PC via the USOFT-0856 software.
- Versatile Testing: Performs tests according to BS, EN, ASTM, and AASHTO standards, with closed-loop PID control for consistent loading rates and automatic calculations of corrected CBR values at 2.5 mm and 5 mm penetration.
- User-Friendly Interface: Intuitive menu options, real-time graph displays, and remote control capabilities enhance usability and convenience.
Specifications
- Power Supply: Available in 220-240V or 110-120V models.
- Dimensions: 470 x 600 x 1180 mm.
- Weight: Approx. 102 kg.
- Software Integration: The USOFT-0856 software simplifies data acquisition, result generation, and reporting, with support for metric, SI, and Imperial unit systems.
Included Components
- 50 kN Load Cell
- Penetration Piston (UTS-0870)
- Linear Potentiometric Displacement Transducer (UTGM-0062)
- LAN Connection Cable
- Comprehensive USOFT-0856 CBR Test Software
Applications
Ideal for engineers and laboratories conducting soil strength evaluations for road construction, infrastructure projects, and other geotechnical analyses.
Compliance with Standards
This machine complies with a wide range of international standards, including:
- SN EN 13286-47:2022: Unbound and hydraulically bound mixtures – Part 47: Test methods for the determination of the California Bearing Ratio, immediate bearing index, and linear swelling
- BS 1377-4:1990: Methods of test for soils for civil engineering purposes – Compaction-related tests
- ASTM D1883-21: Standard Test Method for California Bearing Ratio (CBR) of Laboratory-Compacted Soils
- AASHTO T193: California Bearing Ratio (CBR)
- NF P94-078: Soils: Investigation and Tests. CBR after immersion. Immediate CBR. Immediate bearing index. Measurement on a specimen compacted in the CBR mold.
- AS 1289.6.1.1: Methods of Testing Soils for Engineering Purposes
- UNI CNR 10009: Standard Test Method for California Bearing Ratio (CBR)
- Brand UTEST

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