DIL L75 PT Quattro-Dilatometer

Quattro-dilatometer – 4 samples in one run


On point

The LINSEIS L75 PT Quattro-Dilatometer stands out as a truly unique instrument, specifically designed for customers dealing with a substantial volume of samples. The Quattro-Dilatometer is composed of four separate dilatometer measuring sensors, allowing the simultaneous measurement of either four distinct samples or three separate samples in comparison to a reference standard.

In practical terms, the Quattro-Dilatometer offers three times the productivity when compared to the more commonly used dual push rod dilatometers. With a dual push rod dilatometer, only one sample can be measured against the standard in each instance.

Additionally, the Quattro Dilatometer boasts an automatic furnace lift mechanism as an added feature. This mechanism automatically raises the furnace at the conclusion of each measurement, requiring no operator intervention.

This capability enables users to introduce new samples while the furnace is in the cooling phase. Furthermore, if a second or third furnace is integrated into the system, the sample throughput can be significantly enhanced.

The Quattro-Dilatometer features a unique amplifier equipped with an automatic zero setting for all four samples. Additionally, each sample has a “manual push rod speed release” function. This allows for the easy replacement and precise positioning of all four samples, ensuring high measurement accuracy.

We take pride in being the sole known global provider to offer this highly specialized dilatometer. It serves as yet another illustration of our formidable lineup of thermal analysis instruments.

You are interested in a Quattro DIL?

You need more information?

Contact our application experts!


Temperature range: -180°C up to 500/700/1000°C
RT up to 1000/1400/1600/1750/2000/2400/2800°C
Price range: $$
Heating/cooling rates: 0.01 K/min … 50 K/min (dependent on furnace)
Sample holders: fused silica
Al2O3 <1750°C
Sample length: max. 50 mm
Sample diameter: max. 7 mm
Measuring range: 500/5000 µm
Resolution: 0.125 nm
Atmospheres: inert, oxidizing, red., vac., static/dynamic
Electronics: Integrated
Interface: USB

Furnace & Acessories

Furnace options:

  • L75V 500LT -180°C up to +500°C
  • L75V 700LT -180°C up to +700°C
  • L75V 1000LT -180°C up to +1000°C
  • L75V 1000 RT up to 1000°C
  • L75V 1400 RT up to 1400°C
  • L75V 1550 RT up to 1600°C
  • L75V 1750 RT up to 1750°C
  • L75V 2000 RT up to 2000°C
  • L75V 2400 RT up to 2400°C
  • L75V 2800 RT up to 2800°C



  • Sample preparation devices
  • Different types (designs/materials) of sample holders
  • Vernier calipers for online input of the sample length
  • Selection of Gas Boxes for up to 4 gases
  • Different rotary and turbomulecolar pumps


All LINSEIS thermo-analytical instruments are expertly PC controlled, with software modules exclusively compatible with Microsoft® Windows® operating systems. Our comprehensive software package consists of three key modules: temperature control, data acquisition, and data evaluation. This 32-bit software seamlessly integrates all the necessary functionalities for precise measurement preparation, execution, and the evaluation of Dilatometer measurements. Thanks to the dedication of our specialists and application experts, LINSEIS has successfully developed a user-friendly application software that’s both comprehensive and easy to understand.

Key DIL-Features include:

Glass Transition and Softening Point Evaluation: Facilitating the precise analysis of glass transition and softening points, crucial in various material applications.

Softening Point Detection with Automatic Software-Controlled System Shutdown: Ensuring a safe and efficient operation by automatically managing system shutdown during softening point detection.

Display of Relative/Absolute Shrinkage or Expansion Curves: Providing clear and detailed visualizations of material behavior during thermal analysis.

Presentation and Calculation of Technical/Physical Expansion Coefficient: Accurately calculates and presents expansion coefficients for in-depth material understanding.

Rate Controlled Sintering (RCS) Software: Streamlining the analysis of sintering processes, an essential step in materials science and engineering.

Sinter Process Evaluation: Offering insights into sintering processes for improved materials manufacturing.

Semiautomatic Evaluation Functions: Enhancing the efficiency of data evaluation with semi-automatic features.

Several System Correction Features: Ensuring precision by incorporating multiple system correction mechanisms.

Automatic Zero Point Adjustment: Simplifying sample pressure adjustments, enhancing measurement accuracy.

General Features

  • Program capable of text editing
  • Data security in case of power failure
  • Thermocouple break protection
  • Repetition measurements with minimum parameter input
  • Evaluation of current measurement
  • Curve comparison up to 32 curves
  • Storage and export of evaluations
  • Export and import of data ASCII
  • Data export to MS Excel
  • Multi-methods analysis (DSC TG, TMA, DIL, etc.)
  • Zoom function
  • 1 and 2 derivation
  • Programmable gas control
  • Statistical evaluation package
  • Free scaling



Application example: Glass Ceramic

The dilatometric method is a highly effective technique for assessing the thermal expansion (CTE) and softening point of glass ceramic materials. In addition to obtaining data on absolute expansion and the expansion coefficient (CTE), this method also provides the first derivative of absolute expansion. By identifying the point where the first derivative crosses zero, one can precisely determine the peak of thermal expansion and, consequently, the softening point of the material.

Application example: Ceramics / Powder metallurgy

In the production of advanced ceramics, simulating sintering processes holds significant importance. When utilizing the optional software package RCS (Rate Controlled Sintering), it becomes possible to program controlled sintering using a dilatometer, following the PALMOUR III theory. As an example, let’s consider a sintering process involving ZrO2, where the material reaches a final density of 100%. Throughout this process, the initial heating rate gradually decreases as the material approaches its maximum density.


DIL L 75 Quattro Product brochure (PDF)

DIL Special Software Brochure (PDF)

Scroll to Top