Viscometer Searle's Pattern
Product Code : LSK-EAST-11180
Viscometer Searle's Pattern (SKU LSK-EAST-11180) is a rotating-cylinder viscometer for very viscous liquids: a graduated inner cylinder turns inside an outer cylinder holding the liquid, driven by loads in scale pans, and its rate of turning gives the viscosity. It is used in B.Sc., M.Sc. and engineering physics practicals. Science Lab Supplies manufactures the viscometer in Saha, Ambala, India, at Plot 448 of the HSIIDC Industrial Area, and supplies it straight from the factory floor to colleges, tender contractors and distributors.
Specifications
The Searle's viscometer is specified in full in the table below. In short, the outer cylinder can be clamped at any height, the inner cylinder is graduated in millimetres with its slot shielded by a transparent cover, and the set comes complete with scale pans and a releasing pin for starting each run.
| Specification | Value |
|---|---|
| SKU | LSK-EAST-11180 |
| Type | Searle's pattern viscometer |
| Intended liquids | Very viscous liquids |
| Outer cylinder | Can be clamped at any desired height |
| Inner cylinder graduation | Millimetres |
| Slot | Covered by a transparent cover |
| Loading | Scale pans (included) |
| Release | Releasing pin (included) |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Searle's Viscometer
The viscometer measures liquids too thick for capillary-flow methods, such as heavy oils or glycerine, by timing the steady rotation of the inner cylinder under a known driving load. It is a standard undergraduate and postgraduate practical on viscosity in physics and engineering physics laboratories.
- B.Sc. physics: coefficient of viscosity of a highly viscous liquid, loading the scale pans with masses from a Physical Weight Box Of 100gm Iron Chrome Plate.
- Timing a set number of turns after release with School Digital Stopwatches, then plotting driving load against rotation rate.
- M.Sc. and engineering physics: variation of viscosity with temperature, the liquid checked with a Glass Thermometer.
Raising or lowering the outer cylinder changes how far the inner cylinder is immersed, so readings at two depths let end effects be removed from the result.
Standard Scope of Supply
The viscometer is supplied complete with its outer cylinder and clamp, the inner cylinder graduated in millimetres with the transparent slot cover, the scale pans and the releasing pin. Masses for the pans, the test liquid and a stopwatch are not included and can be added to the quotation separately.
Packing, MOQ and Lead Time
You can obtain a quotation for one Searle's viscometer or for several for a postgraduate laboratory. Science Lab Supplies puts the packing, delivery time and price for that quantity on the quotation, and masses, thermometers or stopwatches for the experiment can be listed with it.
Backed by an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Tanzania, Uganda, the UAE, Saudi Arabia, Oman and the Philippines. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). A message on the contact page or an enquiry cart submission starts the quotation, and the lab tender page covers tender bids.
Frequently Asked Questions
What kind of liquids is the Searle's viscometer meant for?
It is meant for very viscous liquids, such as heavy oils and glycerine, where the rotation of the inner cylinder under a small load is slow enough to time accurately.
What do the scale pans and releasing pin do?
Masses placed in the scale pans provide the driving force that turns the inner cylinder. The releasing pin holds the cylinder still until the loads are set and is withdrawn to start the run.
Why can the outer cylinder be clamped at different heights?
Changing its height changes how much of the inner cylinder is immersed. Readings at two immersion depths allow the effect of the cylinder base to be separated from the main result.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies makes the viscometer itself, at its Saha, Ambala manufacturing unit in India. Enquiries go straight to the people who build it, and the quotation is issued by them.
Related Viscosity and Properties of Matter Apparatus
These viscosity, surface tension, torsion and liquid-expansion items round out the advanced properties-of-matter practicals that run alongside the Searle's viscometer, and any of them can be priced on the same quotation as this viscometer for a single combined college laboratory order.
- Viscosity Apparatus Stokes Method — tube clamped between two upright bars on a heavy cast iron base.
- Viscosity and Particle Drag — compares two test fluids side by side with little draining and refilling.
- Searle's Surface Tension Balance — works with soap films as well as clear liquids.
- Quincke's Surface Tension Apparatus — circular metallic plate for a mercury drop.
- Jaeger's Surface Tension Apparatus — complete with manometer and capillary tube.
- Torsion Apparatus Searle's Type — two clamp-on pointers read against brass degree scales.
- Expansion of Liquid Apparatus — compares the expansion of various liquids over the same temperature range.
Browse the full Elasticity and Surface Tension range, the Properties of Matter range for pressure and density work, or all physics lab equipment.
Last updated: 9 October 2026