Precision Lathes & Grinders

Used Hardinge Bridgeport Series I: Sell or Buy at Auction

Hardinge is an American precision machine tool manufacturer specializing in high-accuracy lathes, grinding machines, and workholding systems. Known for superior precision and the Hardinge Super-Precision® lathe line, Hardinge machines are common in aerospace, defense, and medical device manufacturing.

The Bridgeport Series I is the archetypal vertical turret milling machine, a manual knee mill built around Bridgeport's ram-and-turret design and R8 spindle taper. Most Series I machines carry a 9 by 42 inch worktable with roughly 30 inches of longitudinal travel, about 12 inches of cross travel, and around 16 inches of knee travel. Head choice sets the power and speed: a 1 HP step-pulley head with speeds topping out near 2,700 RPM, or a 2 HP variable-speed head that runs from roughly 60 up to about 4,200 RPM. Originally built by Bridgeport Machines and carried forward under Hardinge after its 2004 acquisition of the Bridgeport brand, this is the mill that trained generations of American machinists and still earns its keep in toolrooms, job shops, and maintenance bays doing prototype work, fixture building, and one-off repairs that don't justify tying up a CNC. Buyers at auction range from small precision shops adding manual capacity alongside their CNC fleet to vocational programs and general fabricators who want a rugged, well-understood machine with a deep parts and tooling ecosystem: R8 collets, hardware, DROs, and power feeds are all easy to source. KD Auctions moves these units briskly because the Series I's reputation and widely interchangeable tooling put it in front of the right audience the moment it lists, drawing on 500,000+ industry contacts built over decades of industrial equipment sales.

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