Rotational Viscometers for Viscosity Testing

A rotational viscometer measures the viscosity of liquids and semi-liquid materials by measuring the resistance generated when a spindle rotates through the sample. It is commonly used for paints, coatings, inks, adhesives, polymers, and other materials where viscosity control is important for formulation and quality control. BIUGED INSTRUMENTS offers a range of rotational viscometers, including touch-screen models, professional models, Krebs Stormer viscometers, and high-temperature models for different testing requirements.

The main factors include the expected viscosity range, sample type, required rotational speed, testing temperature, sample volume, and applicable testing standard. For general laboratory viscosity measurement, the BGD 162 series provides different measurement ranges and interchangeable rotors. For wider viscosity ranges and stepless speed control, the BGD 164/165 professional digital rotational viscometers offer measurement ranges up to 320M mPa·s depending on configuration. For heated materials, BIUGED INSTRUMENTS also provides high-temperature viscometers with temperature control up to 250°C or 500°C.

BIUGED’s basic BGD 162 series provides touch-screen operation, multiple rotor options, automatic viscosity-unit conversion, USB data export, and measurement ranges up to 2,000,000 mPa·s depending on configuration. The BGD 164/165 professional series adds stepless speed adjustment, a wider rotor selection, broader measurement ranges, real-time sampling, gelation-time measurement, built-in temperature sensing, and user recalibration.

Yes. Selected BIUGED INSTRUMENTS rotary viscometers are designed to meet recognized viscosity testing standards. The BGD 162 and BGD 164/165 series conform to standards including ISO 1652, ISO 2555, ISO 3219, ASTM D2196, and ASTM D2983. BIUGED INSTRUMENTS also provides access to its online collection of ASTM and ISO standards for material and coating testing.