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Home  >>  Products  >>  Viscosity  >>  Brookfield Falling Ball Viscometer

Brookfield Falling Ball Viscometer

The Brookfield Falling Ball Viscometer measures viscosity in accordance with the test method defined in DIN 53015 (Höppler principle) to measure the viscosity of Newtonian liquid by measuring the time required for a ball to fall under gravity through a sample-filled tube. The tube is mounted on a pivot bearing which quickly allows rotation of the tube 180 degrees, thereby allowing a repeat test to run immediately. Three measurements are taken and the average time it takes for the ball to fall is the result used. A conversion formula turns the time reading into a final viscosity value.

The Falling Ball Viscometer is used for quality control in various industries as well as in academic institutions to illustrate scientific method. The ease of use and straightforward method for recording time measurements ensures meaningful test results.

Has variable angle settings of 80, 70, 60 and 50 degrees for greater flexibility in testing a broader range of materials. Both models are provided with a set of 6 balls, each with a separate viscosity measurement range. Also included is a temperature probe which can be inserted into the enclosure around the sample tube. The operator manual explains how to convert the time measurement into a viscosity value.

Brookfield Falling Ball Viscometer



Technical Data

Technical Data
Viscosity Range: 0.5 mPa•s (cP) to 70,000 mPa•s (cP)
Accuracy: 0.5% - 2.0% depending on choice of ball
Ball Set Material of Construction:
Balls 1 and 2: Boron Silicate Glass
Balls 3 and 4: Nickel-iron
Balls 5 and 6: Steel
Ball Diameter: 11.0 mm to 15.81 mm
Fall Time of Ball in Measurement: 30 to 300 seconds**
Length of Measurement Zone in the Tube: 100 mm
Operating Temperature Range: -5°C to +150°C
Sample Tube Volume: 40 mL
Viscometer Dimensions: 180 x 220 x 330 mm
** Falling times greater than 300 seconds allow measurement of liquids above 70,000 mPa*s (cP)



Beverages, Coatings, Cosmetics, Detergents, Food, Paint, Petroleum Products, Pharmaceuticals, Polymers, Soap


Ball Set


Ball Set

Ball Set with Case
The Falling Ball Viscometer comes complete with a set of six balls and case.



Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
Item Number Item Prices

1 Calibrated Ball Set, 1 Temperature Probe, 1 Test certificate, 1 Instrument Case, 1 Operator Manual
VI-090020 Model KF40 Falling Ball Viscometer, similar to but with additional working angles of 50°, 60° and 70° $5,328.00
Calibrated Balls
VI-090031 Ball No. 1 (glass) 15.8 mm diameter, certified 231.00
VI-090032 Ball No. 2 (glass) 15.59 mm diameter, certified 231.00
VI-090033 Ball No. 3 (Ni-Fe) 15.56 mm diameter, certified 211.00
VI-090034 Ball No. 4 (Ni-Fe) 15.20 mm diameter, certified 211.00
VI-090035 Ball No. 5 (steel) 14.00 mm diameter, certified 273.00
VI-090036 Ball No. 6 (steel) 10.99 mm diameter, certified 312.00
VI-090037 Complete set of Calibrated Balls with Case, certified 1,270.00
Additional Parts and Accessories available. Please call for further information.


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