Thermo Plus EVO2

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TDL, thermodilatometry.

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Thermodilatometry (TDL) is a thermal analysis technique in which a constant load is applied to a sample, and the amount of expansion and/or shrinkage of the sample is measured during heating.

TDL8411 adopts Rigaku’s established reputation on differential expansion principle where the thermal expansion or shrinkage generated from the detection mechanism itself can be cancelled. It offers high accuracy and excellent reproducibility in expansion and shrinkage measurements, even with low expansion materials and samples with low-thickness.

Automatic length determination function is available where the sample length is automatically measured and can be registered. It facilitates the operation for the continuous measurement.

We can set maximum 24 samples and aside from continuous measurements, it can also perform single measurement as well as interrupt-a-sequence measurement.

Additional information

Measurement method

Compression loading method



Detection system

Differential expansion method

Standard sample size

5 mm diameter (max 9 mm diameter), Length: 10 – 20 mm

Material of support pipe and detection rod


Maximum load

1000 mN

Measurement temperature range

Ambient to 1100°C

Maximum heating rate


Measurement range (FS)

5000 µm

Measurement atmosphere

Air, inert gas or gas flow

Auto sample changer

30 samples