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General Items
LIQUID LIMIT DEVICE (MOTORISED) AZA0854
The Motorised Liquid Limit Device – AZA0854 from AZA Lab is a precision-engineered instrument designed for accurate and repeatable determination of the liquid limit of soils. Equipped with a geared-down motor delivering a consistent 120 RPM, the device automates the drop mechanism, eliminating manual effort and ensuring uniform compaction blows for reliable test results.
The AZA0854 is fully compliant with IS 2720 (Part 5) and ASTM D4318, making it suitable for soil classification, road and pavement design, foundation investigations, and routine geotechnical laboratory testing. The unit operates on 230V AC, 50 Hz, single-phase, ensuring compatibility with standard laboratory power supplies.
The system is supplied complete with Casagrande and ASTM grooving tools and a 1 cm height calibration block, enabling immediate setup, verification, and testing.
Description
Applications
- Liquid Limit determination (Atterberg limits)
- Soil classification based on plasticity characteristics
- Foundation and subgrade design studies
- Compaction control and geotechnical investigations
- QA/QC laboratories and educational institutions
Technical Specifications
| Feature | Specification |
|---|---|
| Model | AZA0854 |
| Standards | IS 2720 (Part 5), ASTM D4318 |
| Operation | Motorised, geared drive, 120 RPM cam |
| Power Supply | 230 V AC, Single Phase, 50 Hz |
| Drop Height | 10 mm ± 0.2 mm (fixed cam height) |
| Cup Material | Brass |
| Body Construction | Mild steel / aluminium cast, powder-coated finish |
| Accessories Included | Casagrande grooving tool, ASTM grooving tool, 1 cm height block |
| Calibration Method | Manual height verification using supplied block |
What’s Included
- 1 × Motorised Liquid Limit Device (AZA0854)
- 1 × Casagrande Grooving Tool
- 1 × ASTM Grooving Tool
- 1 × Height Calibration Block (1 cm)
- Operation and Maintenance Manual
- Power cord with safety fuse
Frequently Asked Questions (FAQ)
Q1: What differentiates AZA0854 from manual liquid limit devices?
The motorised cam provides a uniform 120 drops per minute, significantly reducing operator fatigue and eliminating variability associated with manual operation.
Q2: Does AZA0854 comply with Indian and international standards?
Yes. The device fully conforms to IS 2720 (Part 5) and ASTM D4318 requirements.
Q3: Can the drop height be verified and calibrated?
Yes. A 1 cm height block is supplied for easy verification and calibration of the drop height.
Q4: Is the AZA0854 suitable for mobile laboratories?
While primarily designed for fixed laboratory use, its compact construction allows deployment in mobile soil testing labs with stable power availability.
Q5: Are spare parts available?
Yes. Replacement Casagrande grooving tools, ASTM grooving tools, and calibration blocks are readily available from AZA Lab.
Related products
LIQUID LIMIT DEVICE WITH COUNTER AZA0853
The AZA0853 Liquid Limit Device with Counter from AZALAB is a precision-engineered instrument used for determining the liquid limit of soils in accordance with the Casagrande method. This test is a fundamental component of soil classification and geotechnical investigation, providing critical insight into the plasticity, compressibility, and shear strength of fine-grained soils.
Designed for reliable, repeatable, and standardized testing, the AZA0853 is widely used in geotechnical laboratories, civil engineering departments, construction quality control labs, and academic institutions.
Principle of Liquid Limit Test (Casagrande Method)
The liquid limit is defined as the water content at which soil transitions from a plastic state to a liquid state. In practice, it is determined as the moisture content at which a standard groove cut in the soil sample closes over a length of 12.5 mm under 25 blows of the liquid limit apparatus.
The AZA0853 consists of a polished brass cup mounted on an adjustable bracket. The cup is repeatedly raised and dropped from a fixed height of 1 cm onto a hard rubber base by means of a manually operated cam mechanism. A built-in mechanical counter accurately records the number of blows, ensuring compliance with testing standards and reducing operator error.
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Standards Compliance
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The D2 Large configuration distinguishes the AZA0873 by allowing a larger sample size, providing more representative and reliable results, especially for heterogeneous materials and aggregates with larger particle sizes. Its rugged ZI 3027 construction ensures dependable performance under demanding site conditions.
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The test simulates field compaction achieved by light rollers and rammers and is essential for quality control of subgrades, embankments, road bases, and foundation soils. The AZA0864 is widely used in geotechnical laboratories, site investigation works, and academic institutions following British Standards.
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Accurate water level measurement is fundamental for understanding aquifer behavior, monitoring seasonal or pumping-induced fluctuations, assessing contamination plumes, and supporting the design of foundations, irrigation systems, and water resource management plans. The AZA0871 provides a reliable, fast, and field-ready solution for both static and dynamic water level measurements.