kitagawa

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Machine Tool

High Precision, Ultra-large Through-hole, High-speed Power Chuck
BR series

The standard has evolved.

BR seriesズーム

BR series

  • Gripping accuracy of 0.01 mm T.I.R. or less
  • Reduced jaw-lift
  • Interchangeable with Kitagawa B-200 and BB200 series
  • With BR-Plus optional dedicated T-nuts, the repeatability of jaws at detaching and attaching is 0.01 mm T.I.R. or less

*CE correspondence

Note 1) The gripping accuracy is the Total Indicator Reading of a test bar right after forming jaws to grip a test bar.

Note 2) The repeatability is the Total Indicator Reading of a test bar measured by detaching the formed jaws from the chuck and mounting them again in the same position.

Note 3) Both gripping accuracy and repeatability are the T.I.R. of a test bar at 10 mm above from Kitagawa standard soft jaw.

All the above criteria are based on our internal regulations.


PAT 6345375

PAT 6345321

Product Specifications

ModelBR06BR08BR10BR12
Through-hole (mm) 53 66 81 106
Gripping Range (mm)Max. 170 210 254 315
Min. 16 22 31 49
Jaw Stroke (Diameter) (mm) 5.5 7.4 8.8 10.6
Plunger Stroke (mm) 12 16 19 23
Max. Draw Bar Pull Force (kN) 23 35 49 59
Max. Static Gripping Force (kN) 58.5 90 123 153
Max. Speed (min-1) 6000 5000 4500 3500
Dynamic Gripping Force at Max. Speed (kN) 23 36 44 50
Moment of Inertia (kg・m2) 0.052 0.14 0.32 0.81
Net Weight (kg) (with Soft Top Jaws) 12.8 22.2 35.8 58.3
Matching Cylinder

SR1453

SS1453K

SR1566

SS1666K

SR1781

SS1881K

SR2010

SS2110K

Outline DrawingPDF
DXF
DWG

Machine Tool product lineup

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