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Rotational Viscometers

Article No. 8357

byko-visc RT R
Rotational Viscometer - Premium model for regular viscosity

  • Viscosity range: 26 - 40 Mio. cP
  • Variable speed range: 0.1 - 250 rpm
  • Advanced data collection with on-screen graphing
  • Test Modes: Time to Torque, Time to stop
  • Additional test modes: QC limits, Ramp of speeds, Curve Fitting
  • Temperature probe included
  • Includes 6 Spindles:
  • Spindle R2 26 - 400,000 cP
  • Spindle R3 60 - 1 Mio. cP
  • Spindle R4 120 - 2 Mio. cP
  • Spindle R5 240 - 4 Mio. cP
  • Spindle R6 600 - 10 Mio. cP
  • Spindle R7 2,400 - 40 Mio. cP

Viscosity ranges of R-spindles defined by instrument sensitivity and speed range


More options

No. of Speeds
Model Type
Click here for the Chinese price list in RMB
$5,550.00 €5,550.00 excl. taxes & shipping cost


As a manufacturer, viscosity specifications need to be developed and defined by R&D for the products used in specific conditions – often customization of recipes is required. To ensure a stable viscosity performance in production tests need to be run daily. The new byko-visc RT provides you all the flexibility needed for any measurement task.

  • Measure a wide range of viscosities - Choose your model and enjoy flexibility in measurements
  • Electronic bubble leveling with adjustable feet
  • Brilliant 5" color touch display
  • Test Modes: Time to Torque, Time to stop
  • USB memory stick / direct to PC connecting
  • Quick disconnect spindles with an easy snap-on attachment
  • Dymo Label Writer output for sample labeling
  • Spindles made of high-quality 316 stainless steel
  • CE/UL/CSA Approved
  • 17025 certificate included

Note: To ensure consistency between measurements, we recommend the usage of a 600 mL glass beaker (see accessories).

Technical Attributes

    Technical Specifications

  • Viscosity Range
    26 - 40000000 cP
  • No. of Spindles
  • No. of Speeds
    Freely selectable
  • Speed Range
    0.1 - 250 rpm
  • Repeatability
  • Accuracy
    1.0% full scale range
  • Model Type
    Premium regular viscosity
  • Max Spring Torque
    0.7187 mNm
  • General

  • Languages
    English German French Italian Spanish Russian Japanese Chinese
  • Power supply
    Worldwide power supply, 24v voltage DC input / Separate 24 VDC power supply
  • Weight
    6.5 kg
  • Weight
    14.3 lb
  • Dimensions: L x W x H
    25 x 31 x 47 cm
  • Dimensions: L x W x H
    9.8 x 12.2 x 18.5 in



2555 1652



Delivery Content

Viscometer with stand
Spindle R2 (4988)
Spindle R3 (4989)
Spindle R4 (4990)
Spindle R5 (4991)
Spindle R6 (4992)
Spindle R7 (4993)
Spindle guard
Spindle rack
Temperature probe (8363)
Power Supply (8360)


Guide to Viscosity Measurement

Viscosity is an important property of liquids to determine how they flow, spread, or level under certain conditions. It can be defined as a liquid’s internal resistance to flow. Being able to measure the viscosity will allow to predict the behavior in a process or an application. When applying a paint by roll application the paint viscosity will strongly influence the amount of paint applied per surface area, thereby determining both yield and hiding power. It is crucial for liquid products to undergo a viscosity measurement in incoming and outgoing QC.  

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