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    Digital Rotational Viscometer, 1-100000 mPa.s

    5 out of 5 based on 8 reviews | Write a review
    Digital rotational viscometer has the viscosity measuring range 1~100,000 mPa.s and accuracy ±2%. The viscometer comes with spindles 1#, 2#, 3#, 4# (Optional 0# rotor for under 10 mPa.s viscosity), rotating speed 6/12/30/60 RPM, LCD display with resolution 0.01 mPa.s. Stable rotating speed, accurate & fast measurement, simple operation and competitive price, best for low and medium viscosity samples.
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    Cheap rotational viscometer provides accurate and rapid viscosity measurement in range of 1~100,000 mPa.s, with spindles 1#, 2#, 3#, 4# and selectable rotational speeds 6, 12, 30, 60 rpm, suitable for for a variety of industrial and laboratory applications.


    • The digital rotational viscometer can measure the viscosity of a Newtonian liquid or the apparent viscosity of a non-Newtonian liquid.
    • Adopt the advanced micro-computer drive technology and stepper motor, accurate and stable rotating speed.
    • The horizontal display unit is at the front of the viscometer, convenient to adjust.
    • The measuring range and viscosity value can be accurately display with resolution of 0.01mPa.s.
    • With timing measurement function, it is practical for measuring the non-Newtonian liquid.
    • With automatic scanning, the viscometer can automatically recommend a preferred combination of rotor and speed.
    • The viscosity measurement range of the selected rotor and rotating speed is automatically displayed.
    • With the printing interface, a micro-printer can be connected to print various data.
    • After the temperature probe is selected, the software can display the temperature and time curves on the computer, and the viscosity data can be viewed and saved.


    Model ATO-NDJ-5S
    Measuring Range 1* ~ 100,000 mPa.s
    Rotating Speed (r/min) 6/12/30/60
    Resolution 0.01 mPa.s
    Rotor 1#, 2#, 3#, 4# (Standard, for measuring viscosity more than 10 mPa.s)
    0# (Optional, for measuring the ultra-low viscosity less than 10 mPa.s)
    Sample Consumption (1# , 2# , 3#, 4# ): 250-400mL
    0#: 21mL
    Measuring Accuracy ±2% (full range)
    Repeatability ±0.5%
    Display LCD display
    Timing Measurement Function Yes
    Auto Scanning Function Automatically recommending the optimal combination of the rotor and rotating speed according to the sample viscosity.
    Measuring Range Display Function Automatically displaying the maximum viscosity value measurable for the selected rotor and speed combination.
    Data Output Interface Yes
    Power Supply 100-240V, 50/60Hz
    Net Weight 7kg
    Size 300*300*450mm
    Standard Packing List Viscometer main machine
    Rotor 1#, 2#, 3#, 4#
    Rotor protective frame
    Triangular base and column
    Aluminum alloy carrying case
    Power adapter
    Optional Accessories Rotor 0#, Temperature probe, Software, Mini printer


    * The rotor 0# is required when the measuring viscosity is lower than 10 mPa.s.


    The digital rotary viscometer is widely used in the manufacturing, scientific research institutes or laboratory for viscosity measurement of oils, greases, paints, coatings, pulp, textiles, food, pharmaceuticals, adhesives and cosmetics, etc.

    Rotational Viscometer Applications

    Tips: Functions of Viscometers

    Viscosity is an important physical parameters used to measure the liquid flow resistance ability. The measurement of viscosity is the important means of industrial process control, improving product quality and energy developing and saving. For example, for lubricating oil, viscosity is an important index to evaluate its lubrication ability. When lubricating oil passes through the surface of the lubricated moving pair, local high temperature and high pressure will oxidize the lubricating oil. Meanwhile, the addition of various impurities will also reduce the mobility of the lubricating oil, leading to the increase of viscosity. Therefore, the measurement of lubricating oil viscosity can reflect the quality state and residual life of lubricating oil.

    As a viscosity measuring instrument - viscometer, its application field is not only adhesives, coatings, lubricants and other chemical industries, but also widely used in toothpaste, shampoo and other daily chemicals. In addition, the viscometers are also widely used in yogurt, honey, tomato sauce, fruit juice and beverage and other food areas. In the production process, the viscometer is often used to detect the product viscosity so as to control the viscosity. The viscometer is indispensable to the production and product development tools. ATO digital rotational viscometer has stable and reliable quality, high accuracy and good repeatability. With the help of viscometer, the product can be controlled in the suitable viscosity range to fully play performance.

    Existing reviews of Digital Rotational Viscometer, 1-100000 mPa.s
    Is it possible to buy the 0# rotor separately and the software??
    Is it possible to buy the 0# rotor separately and the software?? . What is the part number to search for it on the page?
    From: Eduardo | Date: 07/10/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    You can purchase them by contacting our sales team (America), (Europe 8 Asia & Africa), and send them this link and they will serve you.
    Question on calibration certification
    I plan to purchase your digital rotational viscometer (ATO-VISCO-5S) with the #0 rotor.  Does your viscometer come with any type of calibration certification?
    From: Samuel | Date: 04/09/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Our digital rotary viscometer (ATO-VISCO-5S) with the #0 rotor will be calibrated according to the factory standard when it leaves the factory.
    If you require a calibration certificate and require a third-party calibration, additional fees will be charged.
    What viscosity liquid should I buy to calibrate viscometer?
    I have a NDJ-5S Viscometer.
    What viscosity liquid should I buy to calibrate my own viscometer?
    From: shelly | Date: 06/06/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Standard silicone oil comes in various specifications, 450ml per bottle:
    1.   47.42mPa.S
    2.   341.1mPa.S
    3.   4749mPa.S
    4.   9853mPa.S
    The specific viscosity value shall be subject to the shipping label.
    Fantastic viscometer
    Everything with this order was fast and simple! The viscometer arrived quickly and was well packaged in a very sturdy case. Everything was very easy to put together.
    From: Beahn | Date: 23/11/2022
    Was this review helpful? Yes No (0/0)
    Fully functional viscometer
    The viscometer comes in a sturdy hard case and is well-packaged. The device with the stand is simple to assemble and can be quickly disassembled for storage in a case with pre-cut foam inserts to accommodate the device. Simple to start and operate.
    From: Rolando | Date: 24/10/2022
    Was this review helpful? Yes No (0/0)
    Viscometer is easy to use and adjust
    After installing the viscometer and using it for a period of time, the quality is very good, the floor is made of aluminum, which can well prevent the generation of static electricity, and there is a level up, very good adjustment, I am very satisfied.
    From: Hortensio | Date: 02/06/2022
    Was this review helpful? Yes No (0/0)
    Accurate, dependable. Highly recommended this viscometer!
    The viscometer comes in a sturdy, hard box and is well packaged. The unit with stand is simple to assemble and can be quickly disassembled for storage in the box, which has pre-cut foam inserts to accommodate the unit. Start-up and operation is simple and can be used well by novices.
    From: Jaeden | Date: 02/06/2022
    Was this review helpful? Yes No (0/0)
    Is it caliberated?
    I want to buy a viscometer for a long time but I hesitate. Can I use this viscometer test my paints? Is this viscometer can measure 1-750cps and is it caliberated? Could you help me?
    From: Max | Date: 26/04/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, it can test paints and its measuring range  is 1* ~ 100,000 mPa.s. We have caliberated it but if you want to caliberate it, you can use standard liquid silicone oil, just like the usual test method.
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