Knee Mills & Vertical Machining Centers
Used Bridgeport EZ-Trak II: Sell or Buy at Auction
The Bridgeport Series I knee mill is the most widely produced milling machine in American manufacturing history and is still the default toolroom mill in thousands of shops. The brand later passed to Hardinge, which carried it through the EZ-Trak CNC knee mills and the Torq-Cut and GX vertical machining centers. Used demand stays unusually deep for a design this old, because nearly every working machinist has run one and parts, tooling, and retrofit controls remain easy to source.
The Bridgeport EZ-Trak II puts the same conversational EZ-Trak CNC control on the larger Series II knee-mill platform, an 11 by 58 inch table rated for roughly 600 pounds, instead of the compact 9 by 48 inch frame under the DX and SX. A power quill drive can be disengaged for manual operation, and a pneumatic power drawbar speeds tool changes, so it handles heavier parts and longer setups like a manual Series II. Shops that need CNC repeatability on a bigger work envelope than the DX or SX allow are the core auction buyers. KD Auctions markets each EZ-Trak II to its 500,000+ industry contacts to find them.
Buying a Used EZ-Trak II
Toolrooms, plant maintenance departments, prototype and R&D shops, job shops that want a manual mill alongside CNC capacity, trade schools and community colleges, and short-run fabricators. Manual Series I mills draw the largest and most local bidder pool at any machine shop auction because they move without a rigging crew; EZ-Trak, Torq-Cut, and GX buyers are shops looking for CNC capability in a small footprint.
Browse Upcoming Auctions →Selling Your EZ-Trak II
A Bridgeport is one of the most reliably sold lots at a machine shop auction: there is always a bidder. What separates a strong result from an average one is condition rather than year, specifically table and way wear, leadscrew backlash, spindle noise, and whether the power feed, DRO, vise, and original tooling stay with the machine.
Other Popular Bridgeport Models
Frequently Asked Questions
How is the EZ-Trak II different from the EZ-Trak DX or SX?
The DX and SX both run on Bridgeport's compact 9 by 48 inch knee-mill platform. The EZ-Trak II mounts the same style of CNC control on the larger 11 by 58 inch Series II frame, so it has more table area and capacity for bigger or heavier parts. All three share the same 2-axis approach to programmable milling, just on different size machines.
What is my EZ-Trak II mill worth, and how do I sell it?
Value depends on the control's condition, spindle hours, table and way wear, and the tooling included with the machine. KD Auctions provides a free USPAP-compliant appraisal from an AMEA-certified appraiser with a realistic orderly and forced liquidation value, then can move it through a managed auction that typically runs 6 to 10 weeks from engagement to payout.
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About Bridgeport
The Bridgeport Series I knee mill is the most widely produced milling machine in American manufacturing history and is still the default toolroom mill in thousands of shops.
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