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 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 mills, verify spindle speed, tool changer, and 5-axis positioning. Check dust collection on graphite models. On all machines, inspect the dielectric system, filtration, and CNC controller.
Wire Cut EDM Machines
GX+ & GV Series
The GX+ series (GX430L+, GX530L+) is CHMER's high-performance linear motor wire cut platform with advanced automatic wire threading and proprietary CNC control. The GV series (GV5043L) delivers high-precision linear motor wire cutting for demanding tolerance work. Both 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% 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, winner of the Taiwan Excellence Silver Award. The A series (A5030L, A6040L) delivers 3-axis linear motor die sinking for production mold and die work. The CM series (CM1875C, CM3076C) provides large-format CNC sinker capability with optional dual ram for simultaneous or sequential electrode processing. 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 with 3D shape machining for aerospace and gas turbine cooling holes and shaped passages. The HM series (HM4030L, HM6050L) is a 5-axis high-speed platform 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 reputation built over five decades. 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 built 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 has earned over 42 national awards for innovation and quality.
What CNC controls do CHMER machines use?
CHMER uses proprietary PC-Based CNC controllers designed and manufactured in-house. These include optimized EDM cutting technology databases, automatic wire threading management, and user-friendly interfaces. The in-house control platform 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" indicates linear motor drive on the machine axes. Linear motors provide direct drive without ball screws, resulting in faster response, no backlash, higher positioning accuracy, and reduced 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.
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 serves mold and die, aerospace, automotive, electronics, semiconductors, medical devices, and general tool and die operations. The 6-axis small hole drillers are valued in aerospace and 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 mills. Free appraisal within 24 hours.