DIL 832 - High Resolution True Differential™ Horizontal Push Rod Dilatometer

The DIL 832 is considered to be a high sensitivity optical encoder and TA exclusive True Differential technology for the most demanding R&D laboratories.

The DIL 832 is available with an impressive array of unique technologies and capabilities that allow it to be the perfect tool in any R&D laboratory for the characterization of dimensional and mechanical properties: TA Instruments exclusive True Differential™ technology, the patented 1 nm resolution optical encoder, the new linear sample load motor and a family of new dynamic furnaces. The result is the best performing horizontal push-rod dilatometer commercially, irrespective of the material or the application to be tested.

The sample load is guaranteed by a linear motor with a range of 0.01 to 1.00 N, a linearity better than 0.01 N across the total measuring range of 5000 µm and a force resolution of 0.01 N.

The new patented optical incremental encoder is capable of bringing length measurement’s true resolution down to a best in class 1 nm. This allows for the measurement of shorter samples yet preserving an exceptional ΔL resolution.

The newly designed measuring head housing and the active electrical thermal stabilization guarantee unparalleled stability of the detection core. Integrated with the unique design of TA Instruments furnaces and TA Instruments exclusive True Differential™ technology, the DIL 832 delivers an industry leading CTE accuracy of 0.01 x 10-6 K-1.

The DIL 832 is capable of automatically recording the initial sample length and is capable of up to a maximum sample length of 25 mm and a maximum diameter of 6 mm.

The water cooled furnaces offer a very dynamic temperature programming capability with a maximum heating rate of 50 K/min, but most of all a cool down time as short as 13 minutes from 1000 °C to room temperature, up to 15 times shorter than competitive instruments.

The incorporated electronics provide network connection, and the integrated touch screen permits users to perform a number of functions directly on the instrument and shows, in real time, measurement parameters and the time-to-completion of the test.


Dilatometer type True Differential™ horizontal push rod
Sample dimension length / diameter 0 to 25 mm / 6 mm
Material of sample holder: Fused silica, Al2O3
Contact Force 0.01 – 1.0 N
Change of length 5000 µm
Resolution ΔL, °C 1 nm, 0.05 °C
Accuracy in α 0.01 x 10-6 K-1
Atmosphere Vacuum, Inert gas, Air
optional gas unit with massflow controller and vacuum unit
Temperature range RT – 1100 °C
RT – 1500 °C
RT – 1700 °C
Heating rate 50 °C/min
Cooling rates 1100 °C – RT: minimum 13 min
1500 °C – RT: less than one hour
1700 °C – RT: approximately one hour




Polymers, ceramics, glasses, high performance materials, metals, building materials, alloys. Ideal to be used joined to Laser Flash instrumentation.


Advanced Ceramics, Academia, Glass, Automotive, Aerospace, Defense, Metals and non-metals Industry, Building Materials, Electronics and micro-electronics, Renewable energies

DIL 830 Series High Resolution Horizontal Dilatometers

DIL 830 Series High Resolution Horizontal Dilatometers

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