Automatic High-Temperature High-Shear Viscosity Tester
Category：Oil Testing Equipment
Introduction
The Automatic High-Temperature High-Shear Viscosity Tester is designed for precise determination of lubricating oil apparent viscosity under high temperature and high shear rates in compliance with ASTM D5481 and SH/T 0703. The instrument features infrared variable-frequency heating, touch-screen interface, and proprietary high-shear viscosity control software. Fully automated functions include sample loading, measurement, data acquisition, and report printing. Equipped with pressure and over-temperature protection, it ensures safe, accurate, and efficient operation for laboratories and quality control applications.
Application
The Automatic High-Temperature High-Shear Viscosity Tester is primarily used to measure the apparent viscosity of lubricating oils under high-temperature and high-shear conditions. The testing principle is as follows: under test conditions of 150 °C and under the pressure of nitrogen (or carbon dioxide), the sample flows through a capillary viscometer. Based on the flow time of the sample and the applied pressure, the apparent viscosity at a given shear rate can be determined. Using calibration curves for each viscometer capillary, the corresponding viscosity of the oil sample is obtained according to the measured pressure.
Standards
(1) ASTM D5481：Standard Test Method for High-Shear-Rate Viscosity of Engine Oils Using the High-Shear Viscometer
(2)SH/T 0703：Lubricating Oils — Determination of High-Shear-Rate Viscosity
Parameters
| Parameter | Specification |
| Applicable Standards | ASTM D5481, SH/T 0703 |
| Heating Method | Infrared variable-frequency heating |
| Temperature Range | Room temperature to 260 °C ±0.1 °C |
| Detection Unit | Single-capillary detection; capillary diameter 0.15 mm |
| Pressure Resistance | 20 MPa |
| Sample Volume | 7 ml ± 1 ml |
| Display | Touch-screen interface |
| Software | Proprietary Fulande software |
| Power Supply | AC 220 V, 50 Hz |
Features
Key components of the tester use CN parts from the USA, ensuring product quality.
The instrument features a touchscreen display with a user-friendly interface in Chinese and English.
It uses proprietary high-shear viscosity control software, developed by Flanders, with independent intellectual property rights.
Equipped with an automatic gas pressure limiting device to ensure safe operation.
The instrument is fitted with an imported FTC circuit protection device, automatically cutting off power in case of over-temperature.
Designed to EN safety standards, with a pressure stabilizing device rated up to 20 MPa, ensuring safety.
Uses a dynamic honeycomb data acquisition system, building a large database to provide higher testing accuracy.
Supports automatic sample loading, automatic sampling, automatic testing, and automatic printing. The system also supports USB data acquisition.
FAQ
1. What is this product?
It is an automatic HTHS viscometer used to measure lubricating oil apparent viscosity under high-temperature, high-shear conditions.
2. What is this product used for?
It is used to evaluate engine oil film thickness performance at 150 °C and to support SAE viscosity classification and lubricant development.
3. Why is this product important?
HTHS viscosity is a key parameter for engine wear protection under severe operating conditions. Accurate measurement ensures compliance with modern engine oil specifications.
4. What industries is this product suitable for?
Lubricant manufacturers, automotive OEM laboratories, petrochemical companies, third-party testing labs, and research institutes.
5. What types of this product are available?
Typical configurations include single-capillary automatic HTHS testers and advanced research models with expanded pressure and temperature capabilities.
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