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Sethi Instruments – Laboratory Testing Equipment Manufacturer & Supplier in India

Sethi Instruments is a trusted name in laboratory testing equipment, soil testing equipment, aggregate testing instruments, test sieves, cement and concrete testing equipment, bitumen testing machines, and general laboratory testing instruments. The company serves laboratories, construction companies, civil engineering professionals, geotechnical laboratories, quality-control facilities, educational institutions, research organizations, and industries that require dependable material testing solutions.

With roots dating back to 1985, Sethi Instruments focuses on providing testing instruments designed for accuracy, durability, repeatable performance, and practical laboratory use. The company operates from New Delhi and supplies testing equipment for customers in India and international markets.

Laboratory testing equipment by Sethi Instruments

Laboratory Testing Equipment from Sethi Instruments

Laboratory testing plays an important role in determining the quality and performance of construction and engineering materials. Accurate testing helps engineers and technicians evaluate properties such as particle size, density, moisture, strength, impact resistance, bitumen content, consistency, and other material characteristics.

Sethi Instruments provides equipment across several testing categories.

1. Test Sieves and Particle Size Analysis Equipment

Test Sieves are fundamental laboratory instruments used to separate and classify particles according to their size. They are commonly used for soil, sand, aggregates, cement, minerals, powders, and other granular materials.

Sieve analysis can help laboratories determine particle-size distribution and evaluate whether a material meets a required specification or testing procedure.

Sethi Instruments also supplies Sieve Shakers, which provide controlled mechanical movement for efficient and repeatable sieving.

The company's current website identifies Test Sieves as one of its key product areas and highlights their use for precise particle-size analysis in applications including construction, pharmaceuticals, and mining.

Related Sieve Testing Equipment

Test Sieves
Brass Sieves
GI Sieves
Ballast Sieves
Sieve Shaker
Riffle Sample Divider

For laboratories handling frequent particle-size analysis, selecting appropriate sieve sizes, construction materials, and a suitable shaking method is important for obtaining consistent results.

2. Sieve Shaker

A Sieve Shaker is designed to automate and standardize the sieving process. Instead of manually shaking a stack of test sieves, the machine applies controlled mechanical movement to help distribute material across the sieve surfaces.

Sethi Instruments' Sieve Shaker is designed to accommodate up to eight 8-inch diameter sieves. It uses a ¼ HP motor with a reduction gear mechanism and combines gyratory movement with vertical vibration.

The sieve table does not rotate directly. Its inclination progressively shifts while the table also moves vertically, helping make effective use of the sieve surface. The gear mechanism operates in an oil bath to support smooth operation and durability.

This type of equipment can be useful in laboratories where particle-size analysis needs to be performed regularly and consistently.

Related guide:
Explore the Sieve Shaker Guide

3. Riffle Sample Divider

A Riffle Sample Divider is used to obtain representative portions from bulk samples of granular or powdered materials.

Sample preparation is an important part of laboratory testing. If a sample is not representative of the original material, the final test results may not accurately reflect the material being investigated.

A riffle divider uses a series of alternating chutes to divide material into separate containers. When properly used, this arrangement helps produce a more uniform division of the original sample.

Sethi Instruments' Riffle Sample Divider is designed for applications involving:

Aggregates
Sand
Cement
Coal
Ores
Pigments
Refractory materials
Powdered materials

Different chute configurations are available, including 13 mm, 20 mm, 25 mm, 40 mm, 50 mm and 63 mm options.

Related guide:
Explore the Riffle Sample Divider

4. Soil Testing Equipment

Soil testing is essential for geotechnical investigations, construction projects, highways, foundations, earthworks, and quality-control applications.

Sethi Instruments offers a range of soil testing equipment intended to support different laboratory and field testing requirements. The current soil-testing category includes Cone Penetrometer, Liquid Limit Device and Rapid Moisture Meter, alongside other soil-testing products shown on the website.

Soil Testing Equipment Includes

Sand Pouring Cylinder
Cone Penetrometer
Liquid Limit Device
Shrinkage Limit Device
Rapid Moisture Meter

These instruments support different aspects of soil characterization, including moisture determination, consistency-related testing, penetration-related evaluation, and field-density measurement.

5. Sand Pouring Cylinder

The Sand Pouring Cylinder is an important apparatus used for determining the in-situ density of soil through the sand replacement method.

Field density testing helps engineers evaluate soil compaction and assess whether compacted ground meets the requirements of a construction project.

Sethi Instruments offers Sand Pouring Cylinder models in 100 mm, 150 mm and 200 mm sizes.

The equipment can include a calibrated cylinder, conical funnel, shutter mechanism, metal tray, and calibrating container, depending on the model.

Common Applications

Sand Pouring Cylinders can be used in:

Soil compaction testing
Highway construction
Civil engineering projects
Geotechnical investigations
Field density testing
Construction quality control

The choice of cylinder size depends on the material, test requirements, and size of the test area or test pit.

Related guide:
Explore the Sand Pouring Cylinder6. Aggregate Testing Equipment

Aggregates are major components of concrete, asphalt, road construction, and other civil engineering materials. Testing aggregate properties helps engineers evaluate their suitability for specific applications.

Sethi Instruments' aggregate-testing range includes equipment for evaluating characteristics such as crushing behavior, impact resistance, bulk density, specific gravity, water absorption, and elongation. The current aggregate category lists five products.

Aggregate Testing Equipment

Aggregate Crushing Value Apparatus
Aggregate Impact Testing Machine
Cylindrical Metal Measures
Density Basket
Length Gauge

Aggregate Crushing Value Apparatus

This apparatus is used for determining the Aggregate Crushing Value of aggregate samples.

Aggregate Impact Testing Machine

The Aggregate Impact Testing Machine is used to determine the impact value of coarse aggregate and evaluate its resistance to sudden impact.

Cylindrical Metal Measures

Cylindrical Metal Measures are used for determining the bulk density or unit weight of aggregates. The website lists 3-litre, 15-litre and 30-litre sizes.

Density Basket

A Density Basket is used for determining the specific gravity and water absorption of aggregate.

Length Gauge

A Length Gauge, also called an Elongation Gauge, is used for determining the elongation index of coarse aggregate.

7. Bitumen Testing Equipment

Bitumen and asphalt materials are extensively used in roads and pavement construction. Laboratory testing helps determine important properties and characteristics of bituminous materials and mixtures.

Sethi Instruments currently lists five major products under its Bitumen Testing category.

Bitumen Testing Equipment Includes

Bitumen Extractor
Ductility Testing Machine
Marshall Stability Apparatus
Ring & Ball Apparatus
Tar Viscometer

Bitumen Extractor

A Bitumen Extractor is used for determining the percentage of bitumen in bituminous mixtures. The Sethi Instruments model uses a removable precision-machined aluminum rotor bowl mounted on a vertical shaft.

Ductility Testing Machine

The Ductility Testing Machine is designed for ductility testing and can test three specimens simultaneously. The equipment uses a controlled moving carriage and water bath system. The website specifies the model as per IS:1208.

Marshall Stability Apparatus

Marshall Stability testing equipment is used in asphalt and pavement laboratories for evaluating the stability and flow characteristics of bituminous mixtures.

Ring & Ball Apparatus

The Ring & Ball apparatus is used for softening-point-related testing of bituminous materials.

Tar Viscometer

The Tar Viscometer is used for determining the viscosity of materials such as cutback bitumen and road oil; the listed product is specified as per IS:1206.

8. Cement and Concrete Testing Equipment

Cement and concrete testing is another important part of construction-material quality control.

Sethi Instruments' current cement and concrete category includes equipment such as Blain Air Permeability Apparatus, Cube Moulds, Hand Operated Compression Testing Machine, Slump Test Apparatus and Vicat Needle Apparatus.

Blain Air Permeability Apparatus

This apparatus is used for determining the fineness of cement and other powdery materials in terms of specific surface.

Cube Moulds

Cube moulds are used for preparing concrete or cement specimens for strength testing.

Compression Testing Machine

The Hand Operated Compression Testing Machine is designed for determining compressive strength of concrete and mortar specimens. The website lists different available capacities, including 250 kN, 500 kN, 1000 kN and 2000 kN models.

Slump Test Apparatus

A Slump Test Apparatus is used for evaluating the consistency/workability of fresh concrete. Sethi Instruments lists a slump apparatus as per IS:7320-1974.

Vicat Needle Apparatus

Vicat Needle Apparatus is used for determining the consistency of cement paste and initial and final setting times.

Industries and Applications

Sethi Instruments' testing equipment can support a wide range of applications, including:

Civil engineering laboratories
Construction companies
Geotechnical laboratories
Highway and road projects
Material testing laboratories
Quality-control departments
Mining applications
Research laboratories
Educational institutions
Aggregate testing facilities
Cement and concrete laboratories
Asphalt and pavement laboratories

The right equipment depends on the material being tested, the required test method, sample characteristics, laboratory environment, and applicable testing standard.

Conclusion

Sethi Instruments provides a comprehensive range of laboratory and material testing equipment for soil, aggregates, sieving, cement, concrete, bitumen and related engineering applications.

With experience dating back to 1985, a New Delhi base, manufacturing and assembly capabilities, quality-focused processes, and a broad product portfolio, the company serves the requirements of laboratories, construction professionals, engineers, educational institutions and industrial testing facilities.

If you are looking for Test Sieves, Sieve Shakers, Riffle Sample Dividers, Sand Pouring Cylinders, Soil Testing Equipment, Aggregate Testing Equipment, Bitumen Testing Machines, Cement Testing Equipment or Concrete Testing Instruments, explore the Sethi Instruments range and contact the company for product information, specifications, quotations and support.

Explore the official Sethi Instruments website:
Sethi Instruments

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