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Help Center220V 40A Super CNC EDM Drilling Machine With ±0.005mm Accuracy for Hardened Steel
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Suzhou Excellence Intelligent Technology Co., LTD presents the 220V 40A Super CNC EDM Drilling Machine — a precision solution engineered for machining hardened steel and other conductive superalloys. With a remarkable ±0.005mm positioning accuracy, this machine ensures consistent, burr-free holes even in the toughest materials. Backed by 10 years of export experience (since 2013) and an ISO9001-certified quality system, we deliver reliability that meets global standards.
This CNC EDM drill is designed for applications requiring deep, small-diameter holes with exceptional surface finish. Whether you are producing cooling channels in mold dies, fuel injection nozzles, or turbine blade cooling holes, our machine offers the speed and precision you need.
Key Features
- High-Output Power Supply — 220V 40A ensures rapid material removal even in hardened steels (up to HRC 65).
- Super Precision — Closed-loop servo control and linear encoders maintain ±0.005mm positioning accuracy.
- Intelligent CNC System — User-friendly interface with auto‑depth control, taper compensation, and multi‑step drilling cycles.
- Robust Construction — Cast iron body with hardened guideways reduces vibration and prolongs tool life.
- Automatic Tool Changer (optional) — Reduces non‑cutting time for high‑volume production.
- Efficient Dielectric Filtration — Fine filtration system (0.5μm) ensures consistent flushing and stable discharge.
Technical Specifications
| Parameter | Value |
|---|---|
| Power Supply | 220V ±10%, 50/60Hz, 40A |
| Discharge Current | 1 – 40A (adjustable) |
| Positioning Accuracy | ±0.005mm |
| Drilling Diameter Range | 0.3 – 3.0 mm |
| Max. Drilling Depth | 200 mm (depending on diameter) |
| Worktable Size | 600 × 400 mm |
| Workpiece Weight Capacity | 300 kg |
| Machine Weight | 1,800 kg |
| Coolant System | Deionized water with 5μm filter |
Advantages for Your Production
- Faster Cycle Times — The 40A power combined with intelligent pulse control reduces drilling time by up to 30% compared to 20A machines.
- Superior Hole Quality — No recast layer, no burrs, and consistent diameter throughout the depth — ideal for subsequent processes like threading or wire EDM.
- Versatility — Works on hardened steel, titanium, inconel, carbide, and any conductive material, making it perfect for mold, aerospace, and automotive industries.
- Easy Operation — The CNC unit supports USB and RS232 data input, allowing you to program complex hole patterns quickly.
- Low Maintenance — Automatic lubrication system and sealed linear guides minimize daily upkeep.
Why Choose Suzhou Excellence Intelligent Technology?
We are a specialized trading company with a factory spanning 3,000–5,000 square meters, dedicated to manufacturing EDM equipment. Since 2013, we have exported to over 15 markets including North America, Europe, and Southeast Asia, with an annual export value of US$5–10 million. Our ISO9001 certification tracks every step from raw material inspection to final testing. Every machine undergoes a 24‑hour continuous run test before shipment.
We offer customizable options such as automatic C‑axis, rotary spindle, and different collet sizes. Our after‑sales team provides remote troubleshooting and spare parts support within 24 hours. With reliable ports of shipment (Shanghai, Ningbo, Shenzhen, Qingdao), we ensure timely delivery worldwide.
Ready to enhance your drilling capabilities? Contact us today for a quotation or technical discussion. Our engineers can help you select the right electrode and parameters for your specific workpiece.
Frequently Asked Questions
- Q1: Can this machine drill through hardened steel with hardness above HRC 60?
- Yes, the 40A power supply and optimized discharge circuit are specifically designed for hardened steel up to HRC 65. The machine maintains stable arcing even at high currents.
- Q2: What is the minimum hole diameter I can achieve?
- The standard electrode range starts from 0.3 mm. With proper electrode material and settings, holes as small as 0.1 mm are possible (custom option).
- Q3: Does the machine include a dielectric cooling system?
- Yes, a built-in chiller and filtration system maintain coolant temperature within ±1°C, ensuring consistent flushing and electrode life.
- Q4: What kind of electrode material is recommended?
- Brass, copper, and copper‑tungsten electrodes are commonly used. We can supply custom electrodes upon request.
- Q5: How long does it take to train an operator?
- Most operators with basic CNC experience can learn the system in 2–3 days. We provide a detailed manual and remote training support.
- Q6: What is the warranty period?
- Standard warranty is 12 months from the date of shipment. Extended warranty options are available.
- Q7: Can the machine be integrated with an automatic loading/unloading robot?
- Yes, we offer a robot interface (optional) with standard I/O ports. The CNC controller supports external automation commands.
- Q8: Is the machine CE certified?
- CE certification can be arranged as an optional addition. Our standard machine complies with international safety requirements, but we recommend confirming with your local compliance office.
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