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580×880mm Table · 500×600mm X/Y Travel · 350mm Max Cut Thickness (Z)
This machine integrates a PLC-controlled wire transport system, high-speed electronic handwheel for manual alignment, and a smart CNC controller optimized for medium-speed cutting. Whether processing hardened steel, carbide, or alloy parts, DK77HC ensures clean kerfs, tight tolerances, and minimal wire vibration.
DK77HC Series
Spare parts supply
On-site installation service
Customized design
Why Choose Our CNC Solutions
Key Features
- ● Medium-speed wire cutting for balance of precision and efficiency
- ● Optional rotary axis enables angular and cylindrical profile machining
- ● Electronic handwheel allows precise manual alignment and edge finding
- ● PLC-controlled wire tensioning improves consistency and cut quality
- ● Rigid machine body minimizes deflection during long-duration cutting jobs
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Recommended Configurations
- ● Accessory: Rotary Axis Module Function: Enables 4-axis cutting of cylindrical and tapered parts
- ● Accessory: Oil Mist Filtration System Function: Ensures clean operation and protects wire quality
- ● Accessory: Electronic Handwheel Function: Allows precise edge probing and manual jog adjustments
- ● Accessory: Automatic Wire Threading Unit Function: Speeds up setup and reduces downtime
- ● Accessory: Closed-loop Tension Controller Function: Maintains consistent cutting pressure and reduces breakage
- ● Accessory: Graphite Cutting Kit Function: Enhances performance when working with brittle non-metallics
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Application Case
- ● Client: Mold Component Manufacturer – Czech Republic
- ● Use Case: Complex taper cut on high-hardness alloy ejector sleeves and die cores
- ● Setup: DK77HC with rotary axis, molybdenum wire φ0.18mm, PLC feed adjustment
- ● Results: Dimensional accuracy: ≤ ±0.008 mm, surface roughness (Ra): ≤ 1.0 μm, wire breakage rate: < 1 per 500mm of contour
- ● Client feedback: “This machine handles our most difficult taper cuts with total reliability—we no longer outsource our complex EDM jobs.”
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Product Specifications
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Frequently Asked Questions
Minnuo’s medium speed wire EDMs are ideal for precision molds, complex mechanical parts, fine stamping dies, connector components, and electronic parts requiring high dimensional accuracy and good surface finish.
Medium speed wire EDM combines the low cost of fast wire EDM with better accuracy and surface finish close to slow wire EDM, using one-time cutting plus multiple skim cuts to balance precision and efficiency.
Minnuo’s medium speed wire EDM machines achieve positioning accuracy within ±0.005 mm, surface roughness up to Ra 0.8–1.2 μm, and can support multi-pass fine cutting.
Absolutely! Send us the workpiece material, thickness, dimensional tolerance, and we’ll recommend the most suitable medium speed wire EDM model within 10 minutes.
Yes! We offer customizations like worktable size, maximum cutting thickness, wire diameter compatibility, water tank capacity, CNC controller brand, and automatic wire threading (AWT) systems.
We use high-rigidity casting structures, precision ball screw drives, high-frequency power supplies, and perform multi-cut testing and laser interferometer calibration before shipment.
Standard models are delivered within 20–30 working days. Customized models or machines with AWT systems typically require 30–45 working days.
Minnuo provides a one-year warranty, 24/7 technical support, remote training, troubleshooting assistance, and long-term spare parts availability.
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