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Rotary Chucks

Neostar permanent rotary magnetic chucks are radial pole with Neodymium (rare earth) magnet material are designed for holding rings and bearing races, as well as solid rounds.
This chuck comes standard without center hole. An optional through hole can be provided upon request.

Rotary Chucks

Neostar – Permanent Radial Pole Chuck
Neostar chucks with Neodynium (rare earth) magnet material are designed for holding rings and bearing races, as well as solid rounds. This chuck comes standard without center hole. An optional through hole can be provided upon request. Common uses are holding rings, bearing races, as well as solid rounds.

Ferromax – Rotary Permanent Magnetic Chuck
These chucks provide dependable magnetic holding for rotary surface grinding and light turning applications. The top plate is magnetic with each pole individually magnetized by powerful ceramic permanent magnets, so electrical controls and collector rings are not required. Frequent magnet polarity changes result in low magnet field to prevent magnetization of tool bits. Common uses are rotary surface grinding, lathe applications, and auxiliary tooling applications.

Multi-Pole Circular Chuck
Rotary electromagnetic and electro-permanent chucks are made in radial pole multi-coil design for use in hard turning and free state grinding. The radial pole design is recommended for holding circular workpieces such as rings and discs. Most radial pole chucks come with t-slots, but tapped holes are also available for mounting tooling. The smaller chucks four or six poles, while the larger chucks use a ten or twelve pole design. Common uses are hard turning and free state grinding.

Neostar Specifications
CodeTotal DiameterHeightMounting HolesNumbers of PolesWeight
(mm)(in)(mm)(in)(kg)(lbs)
37.00.1501505.91572.24M810818
37.00.2002007.87572.24M8121431
37.00.2502509.84702.76M8162760
37.00.30030011.81732.87M8164190
37.00.35035013.8732.95M81655121
37.00.40040015.7752.95M81675165
37.00.50050019.7772.95M816118260
37.00.60060023.6772.95M816170374
Ferromax Specifications
ModelTotal DiaTotal HeightRear Pilot DiaRear Pilot DepthFace Pilot HoleFace Pilot DepthTapped Hole Location(dia)Tapped HolesHoles Tap SizeTap DepthWeight
Model(in.)(in.)(in.)(in.)(in.)(in.)(in.)(in.)(in.)(lbs)
6RN5.9119.74.7.09N/AN/A5.394M8.6215
8RF7.873.066.22.88.197.254.31-18.7533
10RF9.843.068.09.88.199.384.31-18.7546
12RF11.813.0610.09.88.1911.254.31-18.7571
Multi-Pole Circular Chuck Specifications
Size Diameter (Inch)Approximate Weight (lbs)
6"35
8"65
10"95
12"135
14"180
16"235
18"325