Qualitest’s viscometers are high-performance tools designed for accurate and efficient viscosity testing across a wide range of fluid types, including Newtonian and low- to high-viscosity liquids. Built with precision and ease-of-use in mind, each viscosity measurement instrument supports fast, repeatable testing. Ideal for both routine quality control and advanced research environments.
Our viscometer analyzers are equipped with a user-friendly measuring system that simplifies operations and requires only minimal setup time. Whether used as a viscosity testing device for routine quality checks or as an advanced instrument to measure viscosity for research purposes, these tools deliver consistent and dependable results.
Designed to handle diverse applications, Qualitest's viscosity testing devices cater to industries that demand efficiency and accuracy in viscosity measurement. The innovative design ensures smooth operation and effortless integration into any laboratory environment, making them a practical choice for professionals seeking a high-performance solution.
Viscometer Systems for QC and R&D
Viscometer systems help labs control behavior in paints, oils, and polymers with repeatable readings. Standardize spindle choice, speed, and temperature to keep sample prep consistent across QC and R&D and reduce operator variation. Use the table below to compare the best option for your lab.
| Product | Best Fit | Measurement Type | Viscosity Range | Speed Range | Accuracy / Error | Repeatability |
|---|
| Dial Reading Viscometer ViscoQT DR-100 | General-purpose viscosity checks across common liquids (oil, paint, adhesives). | Dial-reading rotary viscometer; selectable rotors (No. 1–4). | 10–100,000 mPa·s (cP) | 6 / 12 / 30 / 60 r/min | ±5% (Newtonian fluids) | Not stated |
| Krebs Stormer Viscometer (KS-Series) | Paints, coatings, and inks where KU reporting is preferred. | Krebs (Stormer) method; constant paddle speed. | 40.2–141.0 KU (27–5250 cP) | 200 r/min ±0.1 r/min | ±1.0% of full-scale | ±0.5% of full-scale |
| Cone and Plate Viscometer – QualiCAP™ Series | High-shear rheology work (non-Newtonian fluids) with small sample volume. | Cone-and-plate (high shear-rate capable). | Up to 1,500,000 mPa·s (varies by spindle). | 5–1,000 rpm (continuous) | <2% of full scale | Not stated |
| Rotational Viscometers (ViscoQT Family) | Broad QC/R&D coverage from low to ultra-high viscosity. | Spindle-torque rotational viscometers. | 5 mPa·s up to 320M mPa·s | 0.1–250 RPM (model dependent) | ±1.0% of full range | ±0.5% of full range |
