Elite Lab is manufacturer and supplier of Liquid Limit Device or Casagrande apparatus in Kolkata, Patna, Ranchi, West Bengal, Bihar and Ranchi India. In its mechanical form, the Casagrande method is known as the Liquid Limit Method and has been in widespread usage in soil mechanics for many years. Data from the Liquid Limit may be used to connect mechanical properties of the soil to one another in soils. The water content at which soil strength decreases to negligible levels is known as the Liquid Limit (LL). The term "liquid limit" is used instead of the exact value of the liquid limit since it cannot be determined. To determine a soil's liquid limit, a typical liquid limit device is used to strike a section of soil with 25 blows, which causes it to flow together over a distance of 1.25 centimetres. With a lot of water, the soil has a strength of roughly 0.17 n/cm. Sq. (17gms/cm. Sq.). In the presence of this much water, earth becomes plastic rather than liquid.

In terms of consistency and accuracy, a Liquid Limit Device Motorized machine provided by Liquid Limit Device Motorized Exporter in Kolkata India is superior. The primary parts of the machine are as per ASTM H-4230 liquid limit machine with a geared motor to ensure proper operating speed and an automated counter. The machine is fastened to a metal plate using rubber feet. Grating tool and gauge block are included in the package. AASHTO T89 and T90 specifications are met.

There is also an electric motor-powered machine by Elite Lab Liquid Limit Device Motorized Suppliers in Bihar, Jharkhand, West Bengal, Kolkata, Ranchi, Patna, that can rotate the machine at two rotations per second. In order to keep track of how many drops happened, a mechanical counter was built.