W8 Physical Cytometer System – Quantitative measurement of size, weight and mass density for spherical biological samples

The W8 physical cytometer is a fully automated instrument for the physical characterization of 3D sphere-like biological samples. It covers the range from 50μm sized small clusters up to larger spheroids or organoids with 500μm in diameter. The combination of a microfluidic technology with bright-field image-based analysis provides information about mass density, weight and size of the structure, in just few minutes.

In Addition, sorting of a target sub-population can be operated based on pre-selected parameters, and can be used for further analysis. Flowrate and microchannel geometries are designed to avoid any shear stress on the 3D samples. Its small size and easy handling allow the operator to place the instrument under the biological safety cabinet, when working with live 3D samples. The instrument analyses the samples fully automated.

CellDynamics | W8 | Physical Cytometer System

Technical data



Method of Measurement gravimetric measurement
Measurement output

mass density

Sample input

sphere like biological cell structures, diameter: 50 - 500 µm

Sorting sample recovery 70%
Precicion 99%
Accuracy 99%
Software LIBRA
PC reqirements

Processor: i7-9700 Octa core 3 GHz
Hard disk: 256GB SSD
USB-Port: 3.1 super speed

Operating Conditions  Ambient temperature: 18 -30°C
Electrical Requirements  

Power requirements: 100 - 230 V AC
Frequency: 50/60 Hz 

Physical Dimensions  

Width: 286 mm
Depth: 180 mm
Height: 375 mm
Weight: 10 kg





CD-37474 Consumable Kit with 15 tests
CD-37475 Consumable Kit with 35 tests




Technical Service

During our business hours, our free telephone support will be glad to assist you in case of any questions. Our Technicians take care of the delivery and installation of original spare parts of the highest quality as well as certified testing, measuring, and control equipment. Our maintenance according to manufacturer specifications includes functional tests, cleaning, accuracy testing with calibration as well as a detailed report. In addition, our maintenance contracts protect your investments and reduce the total cost of ownership.

Detailed information about our support options can be found here.

Logo CellDynamics

Founded in 2013, with the aim of promoting the paradigm shift in 3D Biology-correlated Life Science Research, CellDynamics is a SME based in Italy. Relying on the experience of 15 interdisciplinary specialists, CellDynamics introduced ground-breaking flow technologies, combined with adapted physics, and customized image-based tracking analysis, opening the new path for the Dynamic Biophysical Characterization of 3D Cell Cultures.

More about CellDynamics: https://celldynamics.it


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125 employees
10 locations in europe
32 years of experience