About Tree

Used Tree CNC Milling Machines for Sale

Resell CNC is your Simple. Reliable. and Trusted.® source for used Tree CNC milling machines, including the iconic Journeyman series knee-type CNC mills (Journeyman 250, 310, 320, 325, 425, 425 II), Tree 2VHC and 2UVRC vertical knee mills, Tree Vintage box-way CNC mills, Tree Sumicenter and Powermill VMCs, and ZPS-era Tree machining centers. We carry Tree machines across every generation, paired with Dynapath Delta CNC controls (Delta 10, Delta 20, Delta 30) running PG520 and PG5230 firmware, plus retrofitted Centroid, Dynomotion, and Acorn-based modern control upgrades that are common on the used market.

Tree Machine Tool Co. Inc. was founded in 1926 by Charles Tree as Tree Tool and Die Works in Racine, Wisconsin and built its first milling machine in 1950. From the 1970s through the 1990s, Tree became one of the most recognized American CNC knee-mill brands, with the Journeyman 325 and J-425 widely considered classics of toolroom CNC milling. After the original Tree was sold following founder family transitions, much of the production was relocated in the mid-1990s to ZPS in Slovakia (Tajmac-ZPS), which continued building Tree-branded machines including full VMCs. Tree Machine Tool's assets were later acquired by Excel Machine Tool Ltd. of Singapore. In December 2006, Tree CNC, a new company based in Brighton, Michigan, acquired an exclusive license to resume production of the J-425 CNC knee-type milling machine and became the only authorized US source for original Tree replacement parts and service. Tajmac-ZPS in Slovakia continues to provide parts and support, and Eagle Machine Tool remains a long-standing US service resource for legacy Tree machines.

Looking to sell your Tree? Resell CNC buys used Tree CNC machines nationwide, every model and every generation, including bundled tooling, vises, phase converters, and Dynapath retrofits. Free appraisal within 24 hours. Call (844) 478-8181 or email sales@resellcnc.com.

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Tree Journeyman CNC Knee Mills

The Tree Journeyman Series is the most recognized and most widely traded Tree on the used market. The Journeyman 250 (10" x 39.4" table, 24" x 14" x 6" travels, CAT 30 spindle, 60 to 4,000 RPM) is the compact toolroom unit. The Journeyman 310 (4,200 RPM, 30-taper quick-change, 2-3 HP) is a small-footprint workhorse. The Journeyman 325 (10" x 44" table, 27" x 14" x 6" travels, CAT 40 spindle, 50 to 6,000 RPM, 5 HP) is the iconic mid-size Tree and the most sought-after model on the used market. The Journeyman 425 (the flagship knee mill resumed by Tree CNC in 2006, CAT 40, 7.5 HP, 6,000 lb machine weight) is the heaviest of the knee-type lineup.

Tree VMCs, Vintage & Legacy Models

Beyond the Journeyman knee mill lineup, Tree built full vertical machining centers (Tree Powermill, Tree Sumicenter series) and box-way CNC mills marketed as the Tree Vintage. Many of these later VMCs were built at Tajmac-ZPS in Slovakia and carry Dynapath Delta or Fanuc-era controls. Legacy Tree manual milling machines (2VHC, 2UVRC) from earlier decades also turn up on the used market, often as candidates for full Centroid Acorn or Dynomotion CNC retrofit conversions popular with home shops and small toolrooms.


Founded	1926 by Charles Tree as Tree Tool and Die Works
First Milling Machine	1950
Original Headquarters	Racine, Wisconsin
Current Status	Legacy brand; J-425 production resumed by Tree CNC in Brighton, Michigan (December 2006); parts supported by Tajmac-ZPS (Slovakia) and Eagle Machine Tool (USA)
Production History	Original Racine, WI (1926-1990s) → Tajmac-ZPS, Slovakia (mid-1990s onward) → Excel Machine Tool, Singapore → Tree CNC, Michigan (2006 J-425 relaunch)
Best Known For	Heavy-duty CNC knee-type milling machines for toolroom and short-run production work, box-way construction, classic American precision
Iconic Models	Journeyman 325, Journeyman 425 (the flagship), Journeyman 250, Journeyman 310, Journeyman 320
VMCs & Other Models	Tree Sumicenter, Tree Powermill, Tree Vintage box-way CNC mills, legacy 2VHC and 2UVRC manual mills
CNC Controls	Dynapath (Autocon) Delta 10, Delta 20, Delta 30 (still supported); aftermarket retrofits with Centroid, Dynomotion, Acorn common
Spindle Tapers	CAT 30 quick-change, CAT 40 (most common on Journeyman 325/425)
Industries Served	Toolroom, prototype, tool and die, short-run production, repair shops, education, home machine shops

What to Look for When Buying a Used Tree CNC

Tree milling machines were built primarily in Racine, Wisconsin from the mid-1970s through the 1990s, and later at Tajmac-ZPS in Slovakia. Well-maintained Tree machines hold tight tolerances after decades of service and remain popular toolroom workhorses. Most used Tree mills are 30+ years old, so inspection focuses on the control, electronics, and mechanical refurbishment status.

Inspect the Dynapath control and electronics. Original Tree mills shipped with Dynapath (Autocon) Delta 10, Delta 20, or Delta 30 CNC controls. Confirm the series, firmware revision (PG520, PG5230, or similar), and that the unit boots and communicates with drives. Dynapath remains supported, and independent shops service legacy Delta controls. On retrofitted machines, identify the new control (Centroid Acorn, Dynomotion KFlop, or other) and verify encoder feedback, servo drives, and operator interface.

Verify the box ways, ballscrews, and spindle. Tree machines were built with substantial box ways and rigid construction (Journeyman 425 weighs around 6,000 lbs with CAT 40 spindle and 7.5 HP). Inspect box ways for wear patterns, scoring, and verify gib adjustment. Check ballscrew backlash on all axes. Test spindle runout at the CAT 40 or CAT 30 quick-change interface, listen for bearing noise across the spindle range (typical Journeyman 250: 60-4,000 RPM; 325: 50-6,000 RPM), and verify thermal stability.

Check the knee, quill, and table. Tree knee mills feature substantial knee elevation (15.75 inches on the Journeyman 325). Verify smooth knee movement and counterbalance. On 30-taper quick-change machines, check quill travel (5.5 inches typical) and quill clamping. Inspect the table for flatness, T-slot condition, and way cover damage. Verify the Bijur autolube system delivers oil to all ways and screws.

Identify servo motors, drives, and any DC-to-AC retrofits. Original Tree Journeyman mills used Baldor DC servo motors with corresponding DC servo drives. On long-running machines, motor brush, commutator, and bearing condition matters. Many used Tree mills come with refurbished servos (rebuilt with new bearings, seals, resurfaced commutators, new brushes). Some have been upgraded to modern AC servos as part of a control retrofit; verify motor sizing matches axis loads and drives are correctly tuned.

Tree CNC Machine Series

Journeyman Series (Iconic CNC Knee Mills)

The Journeyman Series is Tree's bestselling and most widely traded CNC knee-mill platform. The Journeyman 250 is a compact 30-taper toolroom unit with 10 x 39.4 inch table and Dynapath Delta CNC. The Journeyman 310 features 30-taper quick-change spindle, 4,200 RPM max, 2-3 HP, and Bijur lube. The Journeyman 325 (CAT 40, 6,000 RPM, 5 HP, 27 x 14 x 6 inch travels) is the iconic mid-size Tree. The Journeyman 425 is the flagship CAT 40 knee mill with 7.5 HP and approximately 6,000 lb weight, resumed by Tree CNC in December 2006.

Tree VMCs & Sumicenter

Tree also built full vertical machining centers including the Sumicenter and Powermill platforms. Later VMCs were manufactured by Tajmac-ZPS in Slovakia, with automatic tool changers, enclosed work envelopes, and Dynapath or Fanuc controls.

Tree Vintage & Box-Way CNC Mills

The Tree Vintage and other box-way Tree CNC mills extend the toolroom lineup with classic American iron construction, popular with shops valuing rigidity for heavy cuts.

Legacy Tree Manual Milling Machines

Tree's legacy manual lineup (2VHC, 2UVRC) and earlier knee mills remain on the used market and are common candidates for modern CNC retrofit using Centroid Acorn, AllInOneDC, Dynomotion KFlop, or similar packages. Retrofitted Tree manual mills offer an affordable entry path into closed-loop CNC milling.

How to Sell Your Used Tree

Tree CNC machines hold steady demand from toolroom shops, prototype shops, home machinists, and tool and die operations that value American-built heavy iron and Dynapath reliability. Journeyman 325 and 425 machines are in particularly steady demand, especially well-maintained units with documented Dynapath service or modern control retrofits.

Resell CNC buys used Tree machines, every model and every generation, nationwide.

Contact us at (844) 478-8181 or sales@resellcnc.com.
Free appraisal within 24 hours, no obligation.
Accept the offer and we handle rigging, transport, and logistics.

Frequently Asked Questions About Used Tree CNC Machines

Is Tree Machine Tool still in business?

The original Tree Machine Tool Co. of Racine, Wisconsin (1926-1990s) is no longer operating. The brand continued through successor companies: Tajmac-ZPS in Slovakia took over much of Tree production in the mid-1990s, and Tree CNC in Brighton, Michigan resumed J-425 production in December 2006. Parts and service remain available.

Can I still get parts and service for a used Tree?

Yes. Tajmac-ZPS (Slovakia) provides parts and documentation including schematics. Eagle Machine Tool is a long-standing US service resource. Dynapath continues to support Delta 10, Delta 20, and Delta 30 controls, and independent service shops support legacy Dynapath controls.

Are used Tree CNC mills reliable?

Yes. Tree mills are heavy, rigid American-built knee mills known for holding tolerance after decades of service. Many original 1980s and 1990s Journeyman machines remain in daily toolroom use, often with refurbished servos or modern control retrofits extending their service life.

What CNC control did Tree use?

Tree primarily used Dynapath (Autocon) Delta CNC controls — Delta 10, Delta 20, Delta 30 — across the Journeyman series and many VMCs. Some later Tajmac-ZPS-built Tree machines used Fanuc controls. Many used Tree mills today carry aftermarket retrofits with Centroid, Dynomotion, or similar modern packages.

What is the difference between Journeyman 325 and 425?

Both are CAT 40 knee mills with similar X-Y-Z travels (27 x 14 x 6 inches). The Journeyman 325 typically has a 5 HP spindle and around 4,700 lb weight, while the Journeyman 425 has 7.5 HP and around 6,000 lbs. The 425 was resumed in production by Tree CNC in December 2006 as the flagship model.

What should I inspect on a used Tree?

Dynapath control series and boot status, box-way condition, ballscrew backlash, spindle runout and bearing health, servo motor condition (especially DC brushes and commutator), Bijur autolube function, any retrofit installation quality, and electrical refurbishment history.

How do I sell my used Tree CNC?

Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy every Tree model: Journeyman 250, 310, 320, 325, 425, Sumicenter, Powermill, Vintage box-way mills, ZPS-built Tree VMCs, Dynapath-original and retrofit machines. Free appraisal within 24 hours.