Linear Expansion Apparatus Linear Expansion Apparatus Manufacturer,Supplier and Exporter in India
Product Code : SCL-MH-11975
Quick Answer: The Linear Expansion Apparatus measures the coefficient of linear expansion of metal rods heated in a steam jacket, with readings to 0.01 mm. It takes 500 mm rods of copper, brass and steel/iron.
Last updated: October 2026
Key Features
Set of three expansion rods: copper, brass and steel/iron
Rods 500 mm long (nominal) and 4.5 mm to 5.0 mm in diameter
Lagged, nickel-plated brass steam jacket with inlet, outlet and thermometer tubules
Expansion read to 0.01 mm with a micrometer or dial indicator
Channel base with detachable conical cups and screw adjustment for setting zero
Technical Specifications
Specification
Value
Rod length
500 mm (nominal)
Rod diameter
4.5 mm to 5.0 mm
Rods
Copper, brass and steel/iron
Resolution
0.01 mm
Heating jacket
Lagged nickel-plated brass tube, three tubules
Base
Channel base with detachable conical cups
HS code
9027.80.30
About This Product
Steam is passed through the jacket while a thermometer records the rod temperature, and the small increase in length is read on the micrometer. The change in length, the original length and the temperature rise give the coefficient of linear expansion, and the three rods let students compare metals.
Frequently Asked Questions
Which metals are supplied as rods?
Three rods are listed: copper, brass and steel/iron, each 500 mm long.
How is the rod heated?
Steam is passed through a lagged nickel-plated brass jacket with inlet, outlet and thermometer tubules.
