Rotating Spindle Viscometer

Professional Rotating Spindle Viscometers – Precise Viscosity Measurement for Quality Control & R&D Applications.

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 rotating spindle viscometer series and find the ideal solution for your application needs.

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

About Martests

As a trusted Chinese exporter of Viscometer, we focus on helping your business succeed with reliable quality, responsive service, and tailored solutions.

Partner with us to bring precision and performance to your lab or production line.

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Product Features

One-stop Accessories Solutions

Unlock more testing possibilities with our professional accessories – designed to expand your viscometer’s capabilities.

Temperature Probe

Delivers precise, real-time temperature monitoring for consistent viscosity measurements across all testing conditions and sample types.

Spindle Rack

Provides secure storage for delicate spindles, extending lifespan and maintaining calibration accuracy.

Ultra-Low Adapter

The must-have companion for precise measurements when testing ultra-low viscosity fluids below 15 cP - ensures reliable, repeatable results.

Micro Printer

Turn your test results into instant documentation. Our compact thermal printer delivers clear, accurate viscosity reports - exactly when you need them.

Thermosel System

Control precise sample temperatures up to 300°C. Perfect for testing hot melts, waxes, and polymers that require elevated temperatures.

Water Baths

Precise, stable, disturbance-free temperature control for your viscosity testing needs, ensuring flawless laboratory results.

Small Sample Adapter

Specially designed for testing small volumes of expensive or limited samples while maintaining high accuracy and reproducibility of measurements.

Standard Viscosity Fluid

Precisely calibrated reference fluids ensuring your viscometer delivers consistently accurate measurements across all testing ranges.

Model Selection Step

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

Define the Measurement Range

Identify the viscosity range of your samples to select the appropriate viscometer type (low, medium, or high viscosity).

Consider Temperature Control

Assess whether temperature control is required to ensure stable and accurate viscosity measurements.

Decide on Accessory Requirements

Determine if accessories are needed based on sample volume, viscosity level, or special testing conditions.

Plan for Standard Calibration

Include standard fluids in your setup to check instrument performance regularly and maintain accuracy.

Choose Based on Application Purpose

Select a model suited to your use case, such as routine QC, R&D, or data alignment with suppliers.

Various Industrial Applications

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

Food & Beverage

Guarantee desired texture and stability in your food and beverage products by accurately controlling viscosity throughout development and production.

Pharmaceuticals

Achieve precise formulation and consistent drug delivery by meticulously controlling the viscosity of pharmaceutical liquids and semi-solids.

Cosmetics

Develop luxurious textures and ensure product stability for your cosmetic formulations by precisely measuring and controlling viscosity.

Paints & Coatings

Precisely measure and control viscosity to ensure superior product consistency, optimal application, and desired finish for your paints and coatings.

Petrochemicals & Lubricants

Optimize performance and ensure quality by precisely measuring the viscosity of your petrochemicals and lubricants, critical for process control and product classification.

Adhesives

Achieve optimal bonding strength and consistent application by precisely controlling the viscosity of your adhesives, crucial for reliable product performance.

Chemical Manufacturing

Ensure consistent product quality and optimized processes by precisely monitoring and controlling the viscosity of your diverse chemical formulations.

Pulp & Printing

Maintain optimal print quality and efficient paper production by precisely controlling the viscosity of inks, coatings, and pulp slurries.

Knowledge of Rotating Spindle Viscometer

Learn basic knowledge you need to know When choosing a rotating spindle viscometer.

What is a Rotational Viscometer?

A rotational viscometer is an instrument used to measure fluid viscosity by rotating a component within the fluid and recording the resistance it encounters. The measured torque reflects the fluid’s internal friction, which correlates directly to its viscosity.

Rotational viscometers are essential for quality control and product consistency across industries by providing accurate viscosity measurements. They help ensure materials behave as expected during processing, packaging, and end use.

What is the Principle of a Rotational Viscometer?

Rotational viscometry works by measuring how much resistance a rotating element faces as it moves through a fluid. This resistance is directly related to the fuuid’s viscosity, and it is expressed in terms of torque and angular velocity.

By analyzing the relationship between torque and angular velocity, rotational viscometers can provide quantitative information about the fluid’s viscosity and it’s rheological properties.

Advantages and Limitations of Rotational Viscometers?

Advantages:

Limitations

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

Client Feedback & Reviews

Discover what our clients have to say about their experience with our products and services.

Their customization service exceeded our expectations. The viscometer arrived with our branding, and the technical support team helped us seamlessly integrate it into our existing workflow."

After switching to Martests, our testing time reduced by 40%. The intuitive interface and quick temperature stabilization make it perfect for our high-volume testing requirements."

"The repeatability of Martests viscometer is remarkable. We've been using it daily in our quality control lab for over two years, and the consistency of results has significantly improved our production efficiency."

Looking for Reliable Instrument Solutions?

With 15 years of industry experience and global export expertise, we provide high-quality viscometers trusted by clients worldwide.