NDJ-1 Digital Rotational Viscometer

The NDJ-1 Rotational Viscometer is a practical laboratory instrument designed for measuring the viscosity of a wide variety of liquids. Using a rotating spindle immersed in the sample, the instrument determines fluid resistance and provides accurate viscosity readings. With four interchangeable rotors and multiple selectable speeds, the NDJ-1 can adapt to a broad range of materials—from low-viscosity oils to thicker gels and polymer solutions. Its simple structure, stable operation, and clear readout make it ideal for quality control, research, product formulation, and material evaluation. This viscometer is widely used in industries such as chemicals, coatings, food, pharmaceuticals, cosmetics, and scientific research laboratories.

• Wide Measurement Range. Measures dynamic viscosity from approximately 10 to 100,000 mPa·s (cP), suitable for low- to high-viscosity liquids.
• Interchangeable Rotors. Includes 4 rotors (No. 1–4) to accommodate different sample viscosities and measurement conditions.
• Multiple Speed Settings. Adjustable rotational speeds (6, 12, 30, and 60 rpm) to optimize testing for various fluid types.
• Easy Operation & Clear Readout. Simple mechanical dial reading and stable measurement mechanism for routine laboratory or industrial use.
• Versatile Application. Suitable for measuring viscosity of oils, coatings, resins, adhesives, gels, pharmaceuticals, food fluids, and other Newtonian or semi-Newtonian liquids.
• Reliable Accuracy. Typical measurement accuracy within ±5% for standard Newtonian samples.