What to Look for When Buying a Used CHMER EDM
CHMER EDM machines are precision systems where generator condition, wire threading reliability, and axis accuracy directly affect cut quality. Here is what to check.
On wire cut EDMs, verify generator, threading, and axes. Run a test cut and measure accuracy, surface finish, and taper consistency. Verify automatic wire threading fires reliably. Check wire guides. On linear motor models ("L" suffix), verify smooth, backlash-free motion. Test the CHMER CNC controller for proper function and cutting technology databases.
On sinker EDMs, test burn quality and servo response. Run a test burn and verify surface finish and accuracy. Check electrode wear ratio. On linear motor models, confirm positioning accuracy. On CM-series with dual ram, test both rams independently. Verify C-axis rotation if equipped.
On small hole drillers and high-speed mills, test core functions. On AH-series drillers, verify hole positioning accuracy and straightness. On multi-axis models, test all rotary axes. On HM-series high-speed mills, verify spindle speed, tool changer, and 5-axis positioning. Check the dust collection system on graphite milling models. On all machines, inspect the dielectric system, filtration, and CNC controller function.
Wire Cut EDM Machines
GX+ & GV Series
The GX+ series (GX430L+, GX530L+) is CHMER's high-performance linear motor driven wire cut platform with advanced automatic wire threading and CHMER's proprietary CNC control. The GV series (GV5043L) delivers high-precision linear motor wire cutting for demanding tolerance applications. Both series feature CHMER's in-house EDM power supply and cutting technology databases optimized for a wide range of wire and workpiece material combinations.
RV, UA & Q Series
The RV series (RV853L) is CHMER's intelligent linear motor wire cutter, winner of the Taiwan Excellence Gold Award. The UA series (UA432L) is a compact linear motor wire cut design that reduces floor space by 20% compared to standard models while maintaining full cutting performance. The Q series (Q4025L) provides high-precision linear drive wire cutting. The EQ series (EQ325L) uses a gantry-type linear motor configuration for specific application requirements.
Die Sinker EDM Machines
The AP series (AP3020L) is CHMER's ultra-precision 3-axis linear motor engraving EDM for fine-detail die sinking, winning the Taiwan Excellence Silver Award. The A series (A5030L, A6040L) delivers 3-axis linear motor die sinking for production mold and die applications. The CM series (CM1875C, CM3076C) provides large-format CNC sinker capability with optional dual ram for simultaneous or sequential electrode processing on large workpieces. All sinker models use CHMER's proprietary CNC controllers and EDM power supplies with optimized machining databases.
Small Hole Drilling & High-Speed Milling
The AH series (AH1080CL) covers small hole EDM drilling from manual machines through full 6-axis CNC models. Advanced configurations include 3D shape machining capability, commonly used in aerospace and industrial gas turbine applications for cooling holes and shaped passages. The HM series (HM4030L, HM6050L) is a 5-axis high-speed machining platform designed for dust-free graphite electrode milling and hard metal processing. The HD series (HD886L) combines high-speed milling with electrical discharge compound processing in a single machine.
How to Sell Your Used CHMER
CHMER EDM machines hold strong resale value as the largest Taiwanese EDM brand with a global reputation built over five decades. The in-house developed CNC controllers, linear motor drives, and EDM power supplies provide a fully integrated platform that holds up well over time.
Resell CNC buys used CHMER EDM machines, every model, every generation, nationwide.
- Contact us — call (844) 478-8181 or email sales@resellcnc.com.
- Free appraisal within 24 hours, no obligation.
- Accept the offer — we handle rigging, transport, and logistics.
Frequently Asked Questions About Used CHMER EDM Machines
Are used CHMER EDM machines reliable?
Yes. CHMER has manufactured EDM machines since 1975 and is the largest EDM builder in Taiwan. The company designs and builds its own CNC controllers, linear motors, automatic wire threading, and EDM power supplies in-house, giving full control over quality and integration. CHMER machines have earned over 42 national awards for innovation and quality. Over 100 CHMER EDMs are in active operation in the United States alone.
What CNC controls do CHMER machines use?
CHMER machines use proprietary PC-Based CNC controllers that are 100% designed and manufactured in-house. These controllers include optimized EDM cutting technology databases, automatic wire threading management, and user-friendly interfaces. The in-house control platform was a strategic decision that freed CHMER from dependence on Japanese CNC controller suppliers and is a key competitive advantage.
What does the "L" suffix mean in CHMER model names?
The "L" suffix indicates linear motor drive technology on the machine axes. Linear motors provide direct drive without mechanical transmission components like ball screws, resulting in faster response, no backlash, higher positioning accuracy, and reduced mechanical maintenance. Most current CHMER models use linear motor drives on key axes.
What should I inspect before buying a used CHMER?
On wire EDMs, test cut accuracy, surface finish, auto-threading reliability, and wire guide condition. On sinkers, run a test burn and check electrode wear ratio and servo response. On drillers, verify hole accuracy and guide condition. On all machines, inspect the dielectric system, filtration, and CNC controller function.
What CHMER models hold their value best?
GX+ and RV series linear motor wire EDMs hold the strongest values for production capability. A-series linear motor sinkers maintain premium demand. CM-series large CNC sinkers with dual ram command strong values for large mold work. Call (844) 478-8181 for current valuations.
What industries use CHMER EDM machines?
CHMER equipment serves mold and die making, aerospace, automotive, electronics, semiconductors, medical devices, and general tool and die operations. The 6-axis small hole drillers are particularly valued in aerospace and industrial gas turbine applications for precision cooling hole and shaped passage work.
Does Resell CNC offer financing on used CHMER EDM machines?
Yes. Resell CNC offers flexible financing options to help your business acquire the equipment it needs. Contact us at (844) 478-8181 to discuss terms.
How do I sell my used CHMER?
Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy all CHMER products nationwide, from wire cut and sinker EDMs through small hole drillers and high-speed milling machines. Free appraisal within 24 hours.