CNC Machining Centers
Used OKK HMC-500: Sell or Buy at Auction
OKK, founded as Osaka Kiko, is a Japanese machine tool builder known for heavy, box-way vertical and horizontal machining centers. It never reached the North American installed base of Haas or Mazak, but shops that run OKKs buy them again for the same reason: the castings and box ways hold up under heavy roughing and interrupted cuts. Most OKK machines on the used market carry Fanuc controls, which widens the pool of buyers willing to bid on one.
Unlike OKK's vertical machining centers, the HMC-500 is horizontal, built around a 500mm two-pallet system so a second part loads while the first is cut. Travels run about 30 by 30 by 31.5 inches on a 40-taper spindle reaching 15,000 RPM, with fast tool changes and rapids near 2,480 inches per minute. That pallet system lets a shop machine multiple faces without manual repositioning, the main reason production shops in automotive and aerospace choose a horizontal over a VMC. It means a different buyer search than OKK's VM or VP models, one KD Auctions reaches through 500,000+ industry contacts built around production machining capacity.
Buying a Used HMC-500
Die and mold shops, heavy job shops, energy and aerospace component machining operations, and production shops that value rigidity over rapid traverse speed. International buyers, particularly from Asia and Mexico, are active on OKK machines at North American auctions.
Browse Upcoming Auctions →Selling Your HMC-500
OKK has a thinner buyer pool than the volume Japanese brands, so marketing reach decides the outcome more than it does on a Haas or a Mazak. Machines with a Fanuc control, documented spindle condition, and a full tooling package achieve the strongest results, and pallet-changer horizontals draw production shops that bid past the general job shop crowd.
Get a Free Consultation →Frequently Asked Questions
Why would a shop want a horizontal machining center instead of an OKK VMC?
The HMC-500's two-pallet system lets one part run while the next is loaded, and its horizontal spindle machines multiple faces without repositioning, both of which suit higher-mix production work that a vertical machining center like the VM-7III or KCV-800 handles less efficiently.
What is the OKK HMC-500 worth at auction?
Value depends on pallet count, control, spindle hours, and tooling package. KD Auctions provides a free AMEA-accredited appraisal so sellers get a realistic recovery estimate. Cost is tailored to the engagement, quoted upfront, and most sellers pay nothing out of pocket.
About OKK
OKK, founded as Osaka Kiko, is a Japanese machine tool builder known for heavy, box-way vertical and horizontal machining centers.
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