BiopharmaceuticalsHigh-temperature and high-shear viscometer, hts-VROC®

Our high-temperature and high-shear unit, hts-VROC®, exploits VROC® (Viscometer/Rheometer-On-a-Chip) technology to characterize engine oils under conditions similar to those in combustion engines. hts-VROC® provides a full shear rate spectrum of your synthetic oil viscosity as a function of temperature.

Real-World Testing Range

Engine oils play a key role in the lubrication and performance of internal combustion engines. Lubricants reduce reduce wear on moving parts, inhibit corrosion and improve sealing and cooling. Characterizing lubricant properties is fundamental to properly establishing performance and degradation under use. Our new system provides the features and specifications of the revolutionary m-VROC® viscometer, with the added capability of testing at temperatures as high as 105°C (with 125 °C available upon request).

Explore Our Test Results

In this technical application note, we demonstrate the suitability of hts-VROC® to characterize engine oils, and other complex fluids, over a wide range of shear rates and temperatures. VROC® technology is a powerful tool in rheological characterization of fluids at high shear rates that are not accessible by conventional rheometers and viscometers. As an example of hts-VROC® capabilities, we present results for two new, multi-grade, synthetic engine oils, and one used oil.

hts-VROC® features include:
Temperature Control: 4 – 105 °C (125°C upon request).
Viscosity Range: 0.2 – 100,000 mPa-s.
Shear Rate Range: 0.5 – 1,400,000 1/s.
Accuracy: 2% of reading.
Repeatability: 0.5% of reading.


Viscosity versus Temperature & Shear Rate

Red_FlaskIn many industrial applications it is vital to characterize how viscosity depends on temprature. With its wide operating range, hts-VROC® is an ideal tool for testing the effects that both temperature and shear have on your samples’ viscosity.hts-VROC_with_no_background






m-VROC™ Viscometer — Controlled Shear Rates and Small Samples



m-VROC™ is the leading automated, small sample viscometer used worldwide by Fortune Global 500 companies and leading research universities. Capable of the most demanding applications including small sample protein therapeutics, m-VROC™ features the widest dynamic range (high shear rate viscosity measurements up to 1,400,000 s-1) with as little as 20 microliters of sample.


  • Accuracy: 2% of Reading
  • Repeatability: 0.5% of the Range
  • Viscosity Range: 0.2 ~ 100,000 m-Pas
  • Shear Rate Range: 0.5 ~ 1,400,000 s -1
  • Small Sample Volume: 20 microliter +