Description

Introduction Liquid Limit Tester

The Liquid Limit Tester BD Plastic Limit Bangladesh is a precision geotechnical instrument that engineers and soil laboratories across Bangladesh use to determine the consistency limits of fine-grained soils. This Casagrande apparatus measures both the liquid limit and plastic limit of soil samples, helping professionals classify soil behavior under varying moisture conditions. ASTZBD supplies this essential testing tool to construction firms, roads and highways departments, university laboratories, and private geotechnical consultancies throughout Bangladesh. The instrument follows ASTM D4318 and BS 1377 standards to ensure reliable and reproducible results on every test.

Specifications Liquid Limit Tester

Standard Compliance	ASTM D4318, BS 1377 Part 2, IS 2720 Part 5
Cup Material	Cast brass, mirror-polished interior
Cup Drop Height	10 mm ± 0.2 mm (adjustable)
Cam Speed	2 revolutions/second (120 blows/min)
Blow Counter Range	0 – 50 blows with manual reset
Base Plate Hardness	Shore A 50 ± 5 (rubber compound)
Grooving Tool Types	ASTM type and Casagrande type (both included)
Frame Material	Powder-coated steel with chrome cam shaft
Drive Type	Manual hand crank (motorized version optional)
Overall Dimensions	Approx. 300 × 200 × 250 mm
Instrument Weight	Approx. 3.5 kg
Cup Capacity	Suitable for standard soil pat per ASTM D4318
Power Requirement	Not required (manual); 220V/50Hz (motorized)
Test Temperature Range	Ambient (15°C – 35°C recommended)
Calibration Certificate	Included (factory issued)
Warranty	1 year from date of purchase (ASTZBD)
Accessories Included	Grooving tools ×2, spare cup ×1, instruction manual
Packaging	Foam-padded wooden or corrugated carton
Country of Origin	Available in Indian, Chinese, and European makes
Supplier	ASTZBD, Bangladesh

 

Key Features Liquid Limit Tester Plastic Limit

1. Sturdy cast brass Casagrande cup with precisely machined grooving tool for consistent test grooves
2. Motorized or hand-operated cam mechanism that delivers exactly 25 blows per second to the soil cup
3. Adjustable cup height set to a standard 10 mm drop for accurate and repeatable measurements
4. Durable rubber base with calibrated hardness (Shore A 50 ± 5) to comply with ASTM D4318
5. Corrosion-resistant metal frame that withstands high-humidity laboratory environments in Bangladesh
6. Blow counter with reset function for fast multi-sample testing workflows
7. Smooth cam and follower action that minimizes operator fatigue during repeated tests
8. Easy-to-replace cup for long-term maintenance savings
9. Includes grooving tool (ASTM type and Casagrande type) in one package

Applications Casagrande liquid limit device

1. Atterberg limits testing (liquid limit and plastic limit) for soil classification
2. Road subgrade evaluation for highways, expressways, and rural roads across Bangladesh
3. Foundation design and site investigation for buildings and infrastructure
4. Embankment and earthwork compaction control for flood protection projects
5. Quality control testing at brick kilns and clay processing facilities
6. Academic research and undergraduate/postgraduate soil mechanics laboratory courses
7. Land reclamation and dredging project soil assessment in coastal Bangladesh
8. Landfill liner design and environmental geotechnics studies

Who Uses This soil consistency test apparatus

1. Geotechnical engineers at consulting firms and design offices
2. Civil engineering laboratories at BUET, RUET, CUET, KUET, and other public universities
3. Roads and Highways Department (RHD) and Local Government Engineering Department (LGED) testing labs
4. Private soil testing labs and material testing companies in Dhaka and Chittagong
5. Construction contractors and project management consultants who perform on-site quality assurance
6. Bangladesh Water Development Board (BWDB) for embankment and dam soil testing
7. Export Processing Zone (EPZ) and industrial park development teams

Frequently Asked Questions(FAQ) liquid limit plastic limit Bangladesh

Q1. What does the Liquid Limit Tester BD measure?

The Liquid Limit Tester BD measures the water content at which fine-grained soil transitions from a plastic state to a liquid state. Engineers use this value, along with the plastic limit, to calculate the plasticity index and classify the soil according to the Unified Soil Classification System (USCS).

Q2. Does this tester follow ASTM D4318 standards?

Yes. ASTZBD supplies Casagrande liquid limit testers that fully comply with ASTM D4318 and BS 1377 Part 2. The instruments include calibration documentation so laboratories in Bangladesh can use the results in certified geotechnical reports.

Q3. What is the difference between the liquid limit test and the plastic limit test?

The liquid limit test determines the moisture content at which soil loses its shear strength and flows like a liquid. The plastic limit test identifies the moisture content at which soil stops being workable and starts to crumble. Both tests together give the plasticity index, a critical value for foundation and pavement design.

Q4. Is a motorized version of the Casagrande apparatus available?

Yes, ASTZBD stocks both manual (hand-crank) and motorized (220V/50Hz) versions of the liquid limit tester. The motorized version maintains a consistent cam speed of 2 revolutions per second and reduces operator variability in high-volume testing scenarios.

Q5. How do I verify the 10 mm drop height of the cup?

The instrument includes an adjustment screw on the cam follower. Engineers use a standard 10 mm gauge block or a calibrated height gauge to verify and reset the cup drop height before each test series. ASTZBD includes a calibration guide in the instrument manual.

 

Why Buy from ASTZBD Liquid Limit Tester Plastic Limit

1. ASTZBD is one of the most trusted scientific and geotechnical instrument suppliers in Bangladesh with years of verified sales experience
2. All instruments come with factory calibration certificates and standard compliance documentation (ASTM/BS)
3. ASTZBD offers nationwide delivery to all 64 districts including Dhaka, Chittagong, Sylhet, Rajshahi, and Khulna
4. Dedicated after-sales support team provides installation guidance and troubleshooting assistance
5. ASTZBD stocks original spare parts, including replacement brass cups, grooving tools, and base plates
6. Competitive pricing with flexible payment options including bKash, bank transfer, and purchase order for institutions
7. ASTZBD provides bulk order discounts for universities, government labs, and large construction firms
8. Fast turnaround — most in-stock items ship within 24–48 hours of confirmed order