Rotational Viscometer

Ideal for quality control, research, and industrial use across coatings, adhesives, food, cosmetics, and more.

Industry Expertise

Years of experience in viscometer manufacturing and deep industry knowledge

High-Quality Products

Precision-engineered viscometers that meet the highest standards

Comprehensive Services

From product selection to after-sales support, we offer one-stop solutions

Proven Reliability

Widely trusted by leading companies across multiple industries

Explore Our Products

Browse our core rotational viscometer series and find the ideal solution for your application needs.

Product NDJ-5S & NDJ-8S rotational viscometer version 1

Key Parameters

NDJ Series Viscometer

Model	NDJ-5S	NDJ-8S	NDJ-5T	NDJ-8T
Display	Digital LCD Display		5-Inch Full Color Touch Screen
Range (cP)	1*~0.1 M	1*~2 M	1*~0.1 M	1*~2 M
Speed (rpm)	6, 12, 30, 60	0.3, 0.6, 1.5, 3, 6, 12, 30, 60	6, 12, 30, 60	0.3, 0.6, 1.5, 3, 6, 12, 30, 60
Accuracy	±2%		±1%
Spindle	L1, L2. L3.L4

DV-1 Series Viscometer

Model	LVDV-1	RVDV-1	HADV-1	HBDV-1
Display	Digital LCD Display
Range (cP)	1*~2 M	100**~13 M	200**~26 M	800**~104 M
Speed (rpm)	0.1 ~ 100 (37 adjustable speed)
Accuracy	±1%
Spindle	L1, L2, L3, L4	R2, R3, R4, R5, R6, R7

DV-2 Series Viscometer

Model	LVDV-2	RVDV-2	HADV-2	HBDV-2
Display	Digital LCD Display
Range (cP)	1*~6 M	100**~40 M	200**~80 M	800**~320 M
Speed (rpm)	0.1 ~ 200 (58 adjustable speed)
Accuracy	±1%
Spindle	L1, L2, L3, L4	R2, R3, R4, R5, R6, R7

DV-1T Series Viscometer

Model	LVDV-1T	RVDV-1T	HADV-1T	HBDV-1T
Display	5-Inch Full Color Touch Screen
Range (cP)	1*~2 M	100**~13 M	200**~26 M	800**~104 M
Speed (rpm)	0.3 ~ 100 (998 adjustable speed)
Accuracy	±1%
Spindle	L1, L2, L3, L4	R2, R3, R4, R5, R6, R7

DV-2T Series Viscometer

Model	LVDV-2T	RVDV-2T	HADV-2T	HBDV-2T
Display	5-Inch Full Color Touch Screen
Range (cP)	1*~6 M	100**~40 M	200**~80 M	800**~320 M
Speed (rpm)	0.1 ~ 200 (2000 adjustable speed)
Accuracy	±1%
Spindle	L1, L2, L3, L4	R2, R3, R4, R5, R6, R7

STM-2T Stormer Viscometer

Display	Range	Speed (rpm)	Accuracy	Spindle
5-Inch Full Color Touch Screen	40.2~141 KU; 27~5250 cp; 32~1099 g	200	±1%	KU-1

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Model Selection Guide

Learn how to choose the right viscometer model and configuration based on your sample characteristics and testing needs.

	Description
Importance of Temperature Control	Accurate viscosity measurement requires stable temperature control. Use a thermostatic bath for medium temperatures and an electric heater for high-temperature conditions.
Determine the Measuring Range	Choose the appropriate viscometer model based on the required viscosity range. The range is influenced by the rotor configuration and can be extended with additional accessories.
Select Accessories Based on Sample Features	Choose suitable viscosity measurement accessories depending on sample volume and viscosity, such as SSR adapters for small samples or ULR adapters for ultra-low viscosity.
Use of Viscosity Standard Solution	Standard solutions are recommended for verifying the viscometer’s performance during startup or routine checks.
Model Selection Based on Application	Select the model according to its intended use—basic viscometer for quality control, touchscreen models for product development, or customized setups for supplier comparison.

Recommendations for Purchasing

	Product Series 1	Product Series 1
LV Type – Low Viscosity	Solvent-Thinned Adhesives, Biochemical Reagents, Chemical Reagents, Cosmetics, Dairy, Hot Paraffin, Printing Ink, Fruit Juice	Latex, Oil, Petroleum, Coating, Drugs, Photosensitive Resin, Polymer Solution, Rubber Solution, Solvent
RV Type – Medium Viscosity	Hot Melt Adhesive, Asphalt, Ceramic Paste, Cream, Daily Cosmetics, Food, Resin and Gum, Printing Ink	Paint, Pulp, Organic Solvent, Plastisol, Starch, Surface Coating, Toothpaste, Brightener
HA/HB Type – High Viscosity	Asphalt, Plugging Agent, Chocolates, Epoxy Resin, Gel, Printing Ink, Syrup	Clay, Peanut Butter, Putty, Waterproof Agent, Sealant, Sheet Molding Compound, Tar

One-stop Accessories Solutions

Simplify your sourcing with complete accessory solutions tailored to your instruments—save time, reduce errors, and improve efficiency.

Temperature Probe

Temperature probe accurately measures environmental temperatures.

Viscosity Standards

Viscosity standards calibrate viscometers for precise and consistent measurements.

Portable Printer

Portable printer offers on-the-go printing capabilities, compact and easy to transport.

Jacketed Glass Beaker

Jacketed glass beaker uses a dual-wall for regulated temperature control.

Spindle Rack

Keep your viscometer spindles organized, clean, and easily accessible with a dedicated storage rack.

Enhanced UL Adapter

Ideal choice for ultra-low viscosity measurement of samples.

Small Sample Adapter

Suitable for special accessories measuring small-amount sample viscosities.

Temperature Control

Achieve accurate, repeatable results by maintaining precise temperature conditions during viscosity and surface tension testing.

For elevated temperature testing of hot melts, asphalt, wax and polymers.

Water baths are indispensable in settings requiring reliable temperature conditions.

DV Software

Capable of functions such as data collection, storage, and processing for viscosity meter measurements.

Knowledge of Rotational Viscometer

Understand how rotational viscometers work and why viscosity matters across industries.

What Is a Rotational Viscometer and How Does It Work?

A Rotational Viscometer is a laboratory device used to measure the viscosity of fluids by rotating a spindle within the liquid and detecting the resistance torque. The torque required to maintain the spindle’s rotation correlates directly to the fluid’s viscosity, typically expressed in mPa·s (millipascal-seconds).

Martests’ viscometers use advanced motor control and torque sensing systems to deliver precise, repeatable viscosity readings across a wide range of substances—from oils and adhesives to creams and resins.

Why Is Viscosity Measurement Important in Your Industry?

Viscosity directly affects how a fluid flows, spreads, mixes, or is processed—making it a critical parameter in industries such as food, pharmaceuticals, coatings, lubricants, chemicals, and cosmetics.

Measuring viscosity helps ensure product consistency, optimize formulations, and control quality throughout production. It can also detect abnormalities like contamination, degradation, or improper mixing.

What Factors Should You Consider When Choosing a Rotational Viscometer?

When selecting a rotational viscometer, consider the viscosity range of your samples, the type of spindle system (standard or coaxial), the shear rate control, and whether you need temperature control integration.

Also important is ease of use—touchscreen interfaces, automatic data logging, and multi-speed testing help improve efficiency.

Martests offers a wide range of models tailored to different industries and testing needs, with optional software and accessories for enhanced functionality.

Effectively Manage Quality Issues

Learn how we address rework and returns to maintain the highest quality standards and ensure customer satisfaction.

Reasons for Rework

Reasons for Replacement

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