Rotational Viscometers

Introduction

Rotational viscometers measure fluid viscosity under controlled rotational force. They are used in petroleum, chemical, and food industries. It solves inconsistent flow behavior measurement and ensures accurate rheological analysis for product quality control.

Standards

ISO 3219:1993-Plastics-Determination of viscosity using a rotational viscometer with defined shear rate

ASTM D2196-20-Standard Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational Viscometer

Complies with the above standards, but is not limited to them.

Features

1. Precise speed or shear settings suit different fluids.

2. Data export and reporting options support quality records.

3. Rotational or capillary method gives reliable viscosity values.

4. Programmable speed sequences support flow-curve studies.

5. Memory programs store methods and limits.

FAQ

What is the Rotational Viscometer mainly used for?

The Rotational Viscometer is used to measure the viscosity or flow behaviour of fluids. It supports formulation, batch consistency and quality control in paints, oils, food, pharmaceuticals, chemicals and cosmetics.

What standards does the Rotational Viscometer comply with?

The instrument is designed with reference to applicable ISO, ASTM and GB/T standards for viscosity measurement and IEC 61010 electrical safety. Procedures should follow the relevant standard method. Compliance documentation can be provided on request.

How long is the warranty period?

The system is covered for 12 months after shipment, including the main mechanism and electrical controls. Replaceable consumables and routine service items are not part of the warranty. Faults caused by improper installation outside the manual or unauthorised modification are not covered.

Is the Rotational Viscometer difficult to operate?

The controls are designed for regular laboratory use, so most users become confident after a brief introduction. The manual walks through each step, and common settings can be saved for repeat work. Online or on-site training is available if the site requires it.

What is the typical lead time for order delivery?

Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Is calibration included?

Factory calibration is included, and routine verification is recommended every 6 to 12 months using suitable reference materials. Regulated sites may require more frequent checks and documented records. Calibration support and certificates can be provided on request.

Are the consumables universal or proprietary?

No proprietary consumable contract is required; standard parts are available from us and common laboratory suppliers. Our service team can supply a recommended parts list for the model. Most routine spares are held for quick delivery.

Are options or configurations available?

Customisation is supported for many installations, including tailored parameters, connections and accessories. Our team reviews the requirement and confirms feasibility and lead time in advance. We avoid committing to options that cannot be delivered reliably.

Do you provide on-site installation?

The unit is delivered ready for set-up, with clear commissioning steps in the manual. We provide remote technical support during installation. For larger or regulated systems, a factory-trained engineer can attend on site on request.

What maintenance and safety points matter?

Do not use samples outside the viscosity range, introduce bubbles or use damaged spindles. Control temperature, since viscosity is temperature dependent. Follow the operating instructions.