Square Neodymium

Oct

by Charlotte

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Green Neodymium Brand New 5mm Magnetic Magic Balls Neocube Puzzle Cube 216 pcs
US $19.95

Blue Neodymium Brand New 5mm Magnetic Magic Balls Neocube Puzzle Cube 216 pcs
US $19.95

Neodymium Brand New 5mm Magnetic Magic Balls Neocube Puzzle Cube Black 216 pcs
US $19.95

Gold Neodymium Brand New 5mm Magnetic Magic Balls Neocube Puzzle Cube 216 pcs
US $19.95

The ChessMate® TravelMate-Ultra (Made in the U.S.A.) Travel Chess Set
US $149.99

1/8" Square Super Strong Neodymium Magnets N42
US $7.99

1/16" Super Tiny Square Strong Neodymium Magnets N42
US $7.99

Magnetic milling chucks provide work piece clamping for a wide range of vertical or horizontal machining applications.

Manual work holding often requires multiple fixtures or the changing clamps, vises or screws over the course of different phases of a milling operation. Replacing manual clamping with magnetic milling chucks eliminates the inefficiencies of conventional work holding devices. They provide better work piece accessibility, reduced vibrations for machining accuracy, five-sided accessibility, and reduced setup time, which summed together improve workflow efficiency. This makes them quite adaptable to work piece clamping for a wide range of vertical or horizontal machining applications, including but not limited to, profiling, face milling, edge milling, plunge milling, slotting, surface grinding and drilling.

Construction and Control

Magnetic milling chucks are constructed with high-powered ceramic or Neodymium permanent magnets that are usually controlled by permanent magnetic or electro-permanent magnetic technology. The magnetic pole surface is manufactured with an all-steel design, facilitated by the use of tee slots that allow the clamping of non-ferrous work pieces. The poles are configured in a longitudinal or square geometry. The pole distribution ensures a uniform magnetic force over the entire surface area of the work piece. The magnetic field is designed such that the top plate of the chuck does not have any stray magnetic fields, which prevents chip collection on the work piece and the cutting tool.

Magnetic milling chucks can be controlled in two ways: mechanically with a lever or electronically with a chuck controller. The permanent magnet type uses a lever to engage or disengage the magnetic field. It requires no electrical power to operate. The electro-permanent magnet type uses a chuck D.C. controller to energize or de-energize the magnetic field, which takes about 1 second. However, it does not need electrical power to operate, which gives this control type a fail safe feature.

Riser Blocks and Double Magnets

To increase the variety of machining operations suitable to magnetic work holding, riser blocks or pole extenders can be used with a magnetic chuck to increase accessibility and reduce interference. These blocks are essentially stand-offs that raise the work piece above the surface of the magnetic chuck. The riser blocks allow the location of work pieces above the chuck so that through-machining operations are accomplished without damaging the magnetic surface. It also allows for side and back cutting. Pole extenders and self-shimming poles can be fitted with magnet modules for greater flexibility. Double magnets can be used with a magnetic chuck to provide tool clearance and uniform clamping in specific areas. They have a clamping force of 1700 LB (7.6KN) and a field depth of 15mm. The can be daisy chained to perform uniform clamping on large work pieces.

DocMagnet Inc. designs and supplies Magnetic Workholding solutions. Their Magnetic Milling Chucks have all metal surfaces and are built and tested to the highest quality.

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