CNC Lathes & Machining Centers
Used Okuma Captain L-370: Sell or Buy at Auction
Okuma is a premium Japanese machine tool builder known for high-precision lathes, grinding machines, and machining centers. The Okuma OSP control system is proprietary and highly regarded for its user-friendly interface and thermal compensation technology. Okuma machines are common in aerospace, automotive, and precision manufacturing.
The Okuma Captain L370 is a two-axis horizontal CNC turning center from Okuma's Captain L series, built for general-purpose chucking and moderate shaft work rather than large-diameter or long-bed production. It typically carries an 8 to 10 inch hydraulic chuck and a 12-station turret, with a maximum turning diameter near 14.5 inches and roughly 20 inches of swing over the bed, sizing it for the small-to-mid parts most job shops run every day. The machine is driven by Okuma's proprietary OSP control, and buyers prize the Thermo-Friendly thermal compensation that keeps dimensions steady through temperature swings, paired with an A2-6 spindle and speeds up to about 4,500 rpm that suit steel and alloy turning. A tailstock handles shaft work between centers, while the milling-equipped Captain L370M variant adds live tooling for turn-mill cycles. Because the OSP control holds close tolerances over years of service and Okuma resale demand stays firm, this Okuma CNC lathe draws consistent interest from precision machining and automotive-parts shops. When KD Auctions brings a Captain L370 to sale, it reaches our 500,000+ industry contacts, drawing precision machining and automotive-parts shops that want proven, mid-size Okuma capacity without buying new.
Buying a Used Captain L-370
Precision machining shops, aerospace component manufacturers, automotive Tier 1 suppliers, and job shops prioritizing precision and reliability. Okuma's OSP control has a loyal following among experienced CNC machinists.
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Okuma machines sell consistently at auction. The brand's strong reputation and the OSP control's user loyalty create competitive bidding. Horizontal machining centers and multi-axis lathes achieve the strongest results.
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Frequently Asked Questions
What is a used Okuma Captain L370 worth at auction?
There is no single number. Value turns on the machine's age and hours, mechanical and spindle condition, the OSP control generation (for example an older OSP-P100 versus a newer P200 or P300), whether it carries live tooling like the L370M, and the tooling and chuck package included. KD Auctions provides a free AMEA-accredited, USPAP-compliant appraisal covering both orderly liquidation value (OLV) and forced liquidation value (FLV), so you have a defensible range before deciding how to sell.
How does the Captain L370 compare to the Okuma Captain L470 and L570?
The L370 is the smallest of the three, with roughly 14.5 inches of turning diameter and an 8 to 10 inch chuck, so it suits smaller-diameter and shaft parts. The Captain L470 and L570 step up in swing, chuck size, and turning capacity for larger, heavier work. All three run Okuma's OSP control, so the choice usually comes down to part size and available floor space rather than control preference. That shared platform is also why shops searching the wider Captain L family often land on the L370 specifically.
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About Okuma
Okuma is a premium Japanese machine tool builder known for high-precision lathes, grinding machines, and machining centers.
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