Metal Cutting

Machining Centers & Milling Machines

The term “machining center” describes almost any CNC milling and drilling machine that includes an automatic toolchanger and a table that clamps the workpiece in place. On a machining center, the tool rotates, but the work does not. The orientation of the spindle is the most fundamental defining characteristic of a machining center. Vertical machining centers generally favor precision while horizontal machining centers generally favor production—but these are loose generalizations, and plenty of machining centers break out of them. Another common machining center type is the five-axis machining center, which is able to pivot the tool and/or the part in order to mill and drill at various orientations.

Featured Zone Content

Cycle Efficiency


Automated machining processes enable this maker of high-performance mountain bike parts to manufacture efficiently with minimal staff.



Eco-Compact 20

Optimal Machine Cell Automation

By: Russ Willcutt
A leading manufacturer of emergency warning lights explores its options in designing an automated machining cell, finding the perfect solution for its application in an enclosed multi-pallet loader newly available on the U.S. market.

Soraluce KB-150-WR horizontal boring machine

Horizontal Boring Machine Handles Large Workpieces with Thermal Stability

By: Jedd Cole
Soraluce’s KB-150-WR T-type horizontal boring machine provides high efficiency and durability for multi-face machining of large workpieces.

Secrets to the Art of Hand Scraping

Secrets to the Art of Hand Scraping

By: Mark Albert
Hand scraping of mating surfaces on a machine tool enables the surfaces to be flatter, more accurately aligned, longer wearing and freer to glide across one another. No automated or mechanical operation can match these benefits. Machine builder Okuma explains how this seeming paradox is true.

Engis SPM 8000 single-pass bore finisher

Bore Finishing System Equipped with Robotic Loading

By: Stephanie Hendrixson
Engis Corp. exhibits its model SPM 8000 single-pass bore finishing system equipped with six-axis robotic parts loading and unloading.

Product Slideshow: Machining Centers

By: Stephanie Hendrixson
The March issue includes a spotlight section on machining centers. Click through the slideshow to learn more about these machines and others.


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