What to Look for When Buying a Used Supermax
Supermax machines were built in Taiwan by YCM with a focus on production-grade durability, robust box-way construction, and Fanuc CNC controls that have stood up well to decades of shop floor use. A well-maintained Supermax delivers years of dependable service. Here is what to inspect on used units.
Inspect the box ways and ballscrews. Most Supermax VMCs use box-way construction. Check the ways for wear patterns, scoring, or loss of preload. Verify the way wipers are intact and the central lubrication system delivers oil to all sliding surfaces. On 3 Rebel and similar 2000-era machines, the unusual X-axis ballscrew layout (with X ballscrew above the Y) gives excellent thermal stability but should be checked for any signs of misalignment. Check ballscrew backlash on all axes.
Verify the spindle, ATC, and taper interface. Most Supermax VMCs use CAT40 spindles, though some legacy machines were originally BT40 and retrofitted. Test spindle runout, listen for bearing noise across the full RPM range, and verify thermal stability after warm-up. Cycle the automatic tool changer through every pocket on the 24, 30, or higher-count carousel changers. On YCM-Series knee mills, check NST#30 or R8 spindle condition and verify variable speed function.
Check the Fanuc control series and any retrofits. Supermax VMCs typically ship with Fanuc OM (legacy), 16M, or 18M controls. Verify control boots, communicates with drives, and runs G-code without faults. Many older YCM-Series manual mills have been retrofitted with Proto-Trak KMX 2-axis CNC controls — verify the retrofit's encoder feedback, axis motion, and Proto-Trak software version. AcuRite DRO retrofits should be checked for scale alignment and battery condition.
Identify the brand variant. Some used machines carry the Supermax name, others the YCM name, and some have both. They originate from the same Taiwan manufacturer. The Supermax brand was used heavily on machines sold through YCI Inc. in the 1980s, 1990s, and 2000s. Confirm parts and service availability for the specific model and control before purchase.
Supermax Machine Series
FV Series Vertical Machining Centers
The Supermax FV Series (including the FV-102A) is a production-grade VMC platform with table sizes around 44 by 20 inches, CAT40 spindle, 30-position automatic tool changer, hand-held MPG pendant, chip conveyor, and Fanuc Series O-M or 18M CNC controls. FV-Series machines are heavy iron production workhorses widely traded on the used market.
Max Series VMCs
The Supermax Max-4XP is a 3-axis CNC vertical machining center built by Yeong Chin Machinery Company in Taiwan, equipped with a 24-tool carousel, Fanuc OM CNC controls, and travels of 40 inches X by 20 inches Y. Max Series machines emphasize compact production turning of small to mid-sized parts.
Supermax 3 Rebel VMCs
The Supermax 3 Rebel is a 2000-era VMC known for box-way construction, Fanuc control, and a distinctive X-over-Y ballscrew layout that gives the machine excellent thermal stability. 3 Rebel machines are typically configured with BT40 or CAT40 spindles, 24-inch Z-axis travel, and feed rates around 200 IPM.
TC Series CNC Lathes
The Supermax TC Series turning centers (TC-2, TC-26) were among the most widely deployed Supermax CNC lathes through the 1990s. These rugged turning centers earned a reputation for hard daily production use and are still found running in shops worldwide.
YCM-Series Knee Mills
The YCM-Series manual and CNC knee mills (YCM-16VS, YCM-40) were Supermax's bread-and-butter shop mills in the 1980s and 1990s. Typical specs include a 9 by 49-inch table, 3-HP variable speed motor (60 to 4,500 RPM), R8 or NST#30 spindle, 5-inch quill travel, power feed on the X-axis, and AcuRite DRO. The head tilts front to back and swivels 90 degrees for angular work. Many have been retrofitted with Proto-Trak KMX 2-axis controls and remain in service in tool rooms.
How to Sell Your Used Supermax
Supermax machines hold steady resale value thanks to their Taiwanese build quality, large installed base across North American job shops, and continued parts and service support through YCM and YCI Inc. FV-Series VMCs, 3 Rebel machines, and Proto-Trak retrofitted YCM mills are in particularly steady demand.
Resell CNC buys used Supermax 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 Supermax Machines
Is Supermax the same as YCM?
Supermax is the brand name used by YCM (Yeong Chin Machinery Industries Co., Ltd.) for machine tools sold primarily through YCI Inc. in North America starting in 1981. Some machines carry the Supermax name, some carry the YCM name, and some carry both. They originate from the same Taiwan manufacturer.
Are Supermax machines made in Taiwan or China?
Taiwan. Supermax machines are manufactured by Yeong Chin Machinery (YCM) in Taiwan, not China. YCM was founded in 1954 and is one of Taiwan's leading machine tool builders.
Are used Supermax machines reliable?
Yes. Supermax built a reputation through the 1980s, 1990s, and 2000s for robust box-way VMCs and knee mills that handle hard production work for decades. Many original Supermax machines from this era are still running daily in North American job shops, including shops that own multiple Supermax units.
What CNC control does Supermax use?
Most Supermax CNC machines ship with Fanuc controls (Series OM on legacy machines, 16M and 18M on later production). Older YCM-Series manual mills are often retrofitted with Proto-Trak KMX 2-axis CNC controls or use AcuRite DRO systems.
What should I inspect on a used Supermax?
Box-way condition and central lubrication, ballscrew backlash, spindle runout and bearing health, automatic tool changer function, Fanuc control series and software version, any Proto-Trak retrofit health, and parts and service availability for the specific model.
What Supermax models hold their value best?
FV-Series VMCs, the Supermax 3 Rebel, and TC-Series CNC lathes all maintain steady resale values thanks to their production durability and ongoing demand from job shops. YCM-Series knee mills with documented Proto-Trak retrofits often command a premium over equivalent manual machines.
Does Resell CNC offer financing on used Supermax machines?
Yes. Resell CNC offers flexible financing options to help your shop acquire the equipment it needs. Contact us at (844) 478-8181 to discuss terms.
How do I sell my used Supermax?
Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy every Supermax model: FV Series, Max Series, 3 Rebel VMCs, TC Series lathes, YCM-Series knee mills, and Proto-Trak retrofits. Free appraisal within 24 hours.