Sigma Electronics

User Support Japanese

User Support Japanese



Best selling product proud of easy use and high accuracy, compact size and low cost. Performs balancing at any fixed rotation speed.
•Rechargeable battery model is available.


•NC Lathe, High-speed Die Machinery, High-speed Slicer, Dicing Saw, Internal Grinder, Woodworking Machinery, Crusher, Blower, Pump, Compressor, etc.
•Most of precision grinder as Surface grinder, Forming grinder, Centerless grinder, Cylindrical grinder (-optional)




Battery powered

•Rechargeable battery: Li-Ion battery
•Operating time: 8 hours (sleep mode])

High accuracy and efficient 1 to 2 plane balancing

•Field balancing at a fixed rotational speed
•Resolution of 0.001μm at up to 120,000min–1 (SB-8805RHB)
•Low speed balancing down to 60min-1model is available (SB-8805RLB)
•Measuring response is 2x fast by 2channel simultaneous measurement. (Compared to Sigma’s products)
•Resolution of vibration is 0.001µm up to 120,000min–1.

Fix-speed balancing

Vibration analysis functions

•Unbalance vibration monitoring •Harmonic analysis


Documentation and archiving

With our utility software, the measurement results can now be transferred directly onto your PC as CSV files and MS-Excel reports.
•Measurement data can be stored in microSD card.
•Screenshots can be stored in microSD memory or transferred to PC.

Documentation and archiving

Touch screen color LCD

•Easy operation with 5.7" graphical color display
•User-friendly procedure and help function

Unbalance correction by balance weights arrangement -optional

•Unbalance can be corrected by arranging 2 or 3 balance weights on the circumference. This method is popular for balancing of grinding wheels.
•If this method is applied to general industrial machinery, balance correction will be easily done only by rearrangement of balance weights, weight selection and/or fabrication is not needed.
•SB-8805RB series can be applied 1 plane(G) or 2 plane(GW) balancing.

Unbalance correction


•FFT Analyzer
•Overall Amplitude monitoring
•Vibration Sensor for multi-plane measurement


Instrument and all accessories are stored in an attaché case
Dimensions: 385(W)x120(L)×255(H)mm
Mass: Approx.4.5kg

•USB mini-B connector
•microSD card slot

Model suffix

Specifications: SB-8805RBseries

Operating Flowchart

Specifications: SB-8805RBseries