EEPM Magnetic Workholding

Our MagVISE and EZ-LIFT brands offer the widest selection of magnetic work holding and lifting solutions. Our engineers work with you to provide custom turn-key solutions that integrate easily into your production process in order to improve efficiency and maximize productivity.

Magnetic Chucks

What is a magnetic chuck?

Magnetic chucks are a great alternative to traditional vices for holding ferritic workpieces. Magnetic chucks allow for 5-sided machining without obstructions from vice jaws and enable workpieces to be machined in a free state, without squeezing forces, so machined areas do not deform when these squeezing forces are removed by loosening vice jaws. This makes magnetic chucks an excellent choice when holding tight tolerances for milling, drilling, reaming, boring, and grinding applications.

What is the purpose of a magnetic chuck?

Magnetic chucks drastically reduce workpiece change-out and job change-over times and allow for multiple workpieces to be ganged on a single chuck. Since there are no vice jaws creating obstructions, all 5 sides of the workpiece can be machined without repositioning. Also, the magnetic clamping force is distributed evenly along the bottom of the workpiece reducing vibration and improving cutting performance.

How does a magnetic chuck work?

In the ON state, alnico and rare-earth magnets alternate poles, creating a powerful magnetic attraction. Holding power varies with the type of material being held, surface finish, and part thickness. The minimum recommended part size is 5″ x 5″ x 3/8″ thick, so a minimum of 4 magnetic poles are covered by the part. Workstops, pins, or part nesting techniques ensure the ability to hold small, thin parts without movement.

Techniks EEPM Magnetic Chucks

Since 2001, Techniks has designed, built, and installed electro-permanent magnetic work holding and permanent magnetic lifting solutions for metal fabricating and manufacturing.

Compared to traditional CNC work-holding fixtures, our magnetic work holding solutions use powerful rare-earth magnets embedded into our EEPM chucks to ensure the workpiece is uniformly supported over a larger single area, freeing up all five sides of your workpiece, so you can machine the entire profile of the part in one setup.

Techniks EEPM Magnetic Chucks Features

Magnetic work holding greatly reduces setup and part change-over time, giving your spindle more time to make chips. Thick or thin, large or small – just about any ferrous material can be held and machined magnetically.

Larger parts are easier to hold because there is more material for the magnetic flux to penetrate. For smaller parts, using work stops and nesting the part are options that work well. Magnetic chucks are used for just about all types of machining operations on horizontal or vertical CNC machines.

An EEPM workholing chuck is featured with:

• Up to 86,625 lbs holding power
• Turn chuck ON/OFF in only a few seconds – chuck will not lose magnetism if a power loss occurs
• Induction blocks and sub plates provide additional setup options for small parts or warped stock

The advantages are:

• Machine freely on 5-sides without obstructions in one setup
• Reduce setup & change-over time by 50% or more!
• Very uniform holding = No workpiece deformation

Types of Techniks EEPM Magnetic Workholdings

In general, magnetic chucks can be divided into three types: permanent magnetic chuck, electromagnetic chucks, and electro-permanent magnetic chucks. Compared to traditional fixturing methods, Techniks magnetic workholding frees up all five sides of your workpieces so you can machine the entire profile of the part in one set-up. Magnetic workholding greatly reduces setup and part change-over time, giving your spindle more time to make chips.

EEPM Standard Workholding Chucks

EEPM Standard Chucks are the baseline model of our wide array of EEPM workholding magnets.

EEPM-A Thin Workpiece Chucks

EEPM-A Thin Workpiece Chucks are our 35MM pole chucks, and are built specifically for the machining of thin workpieces. They are a great choice for machining operations on either vertical or horizontal mills. They easily integrate with pallet changing and tombstone systems.

EEPM-D Thick Workpiece Chucks

EEPM-D Thick Workpiece Chucks are our 70MM pole chucks that provide the high holding force needed for large workpieces, thick plates, blocks, and molds. A great choice for drilling, milling, and boring operations on vertical or horizontal mills. They easily integrate with pallet changing and tombstone systems.

EEPM-C Modular Workholding Chucks

EEPM-C Modular Workholding Chucks provide almost unlimited flexibility to hold workpieces of varying sizes. Use clamps or bolts to position EEPM-C magnets anywhere on your machine bed or pallet to fit your workpieces.

EEPM-V Tombstone Workholding Chucks

EEPM-V Tombstone Workholding Chucks are designed specifically for horizontal machining and mold-making applications.

EEPM-CIRS Grinding Workholding Chucks

EEPM-CIRS Workholding Chucks are designed specifically for CNC precision grinding operations and applications.

EEPM-PIM Workholding Chucks

MagVISE-PIM Workholding Chucks deliver powerful and uniform holding, designed specifically for plastic injection mold clamping. These workholding magnets are the perfect solution for quick mold and die change for plastic injection, metal stamping, die casting, and rubber molding. The overall effectiveness of magnetic mold clamping surpasses traditional clamping methods, increasing productivity and quality with faster and safer mold changes.

Contact Us

Call us today! Our engineers will work with you to provide custom TURN-KEY solutions that integrate easily into your production process in order to improve efficiency and maximize productivity. Phone: (800) 597-3921 or Email: INFO@TECHNIKSUSA.COM