Metal Cutting

Horizontal Machining Centers (HMCs)
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A horizontal machining center (HMC) is a machining center with its spindle in a horizontal orientation. This machining center design favors uninterrupted production work. One reason for this is that the horizontal orientation encourages chips to fall away, so they don’t have to be cleared from the table. More significantly, the horizontal design allows a two-pallet workchanger to be incorporated into a space-efficient machine. To save time, work can be loaded on one pallet of an horizontal machining center while machining occurs on the other pallet.

Featured Zone Content

The Costs and Benefits of Horizontal Machining


The shift from vertical to horizontal machining was even more expensive than this shop anticipated. It was also more valuable. Most of the shop’s machining centers are HMCs now—here’s why.

Adopting a 24/7 Mindset


This shop considered a number of factors before establishing an effective process to run an HMC cell around the clock for applications in aerospace, oilfield and other industries.

A Production Line Takes Shape


Although Pointe Precision built its reputation on low-volume, high-complexity aerospace and medical parts, its expansive high-volume production line may be its biggest success to date. Sound decision-making and attention to details at every step are the keys to this success.



Spotlight Slideshow: Machining Centers

By: Stephanie Monsanty
Automatic pallet changers and support for automation are some popular features of recently released machining centers. View the December slideshow for more on these machines.

DMG MORI NHX 4000 2nd Generation horizontal machining center

December 2014 Product Spotlight Slideshow: Machining Centers

By: Stephanie Monsanty
View the December slideshow to see some of the latest vertical, horizontal and five-axis machining centers.

Kitamura Mycenter -HX500G HMC

HMC Offers Flexibility in Cutting Capabilities

By: Edited by Stephanie Monsanty
Kitamura Machinery’s Mycenter-HX500G horizontal machining center, part of the company’s G series of machining centers, is designed for medium to large parts that require flexibility in cutting capabilities.

OKK HMC500 HMC

HMC Designed for Faster Cycle Times

By: Edited by Stephanie Monsanty
OKK’s HMC500 horizontal machining center features a 500-mm pallet to accommodate large workpieces and is intended to provide faster cycle times.

Five-Axis HMC Equipped with Work-Pallet Magazine

By: Edited by Stephanie Monsanty
Makino’s a51nx-5XU five-axis horizontal machining center incorporates a fifth-axis table and work pallet magazine, and is intended to serve as an alternative to single-pallet-load vertical machining centers for machining of small parts.


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