EN
- Overview
- Main Parameters
- Control System Function
- Recommended Products
Technical Specification
1. Main Technical Parameters of the DK7720
| Item | Unit | Parameter |
| X-axis | mm | 200 |
| Y-axis | mm | 250 |
| Tabletop dimensions | mm | 580 × 400 |
| Maximum load | kg | 100 |
| Maximum Cutting Taper | °/mm | 6°/80 |
| Maximum Cutting Workpiece Thickness | mm | 500 |
| Optimal Machined Surface Roughness | μm | Ra ≤ 2.5 |
| Machining Accuracy | According to GB7926-2005 Standard | |
| Working Fluid | Dedicated working fluid for wire cutting (DX-1, DX-4, Nanguang-1) | |
| Pulse Equivalent | mm | 0.001 |
| Stepping Motor | – | 55BF006 |
| Maximum Cutting Speed | mm²/min | 150 |
| Required Power Supply | KVA | 2 (3-phase ~380V, 50Hz) |
| Weight | kg | 600 |
| Overall dimensions | mm | 1085 × 900 × 1300 |
| CNC Cabinet | – | Integrated computer cabinet |
2. Control Cabinet Function Description
| No. | Function Description | Remarks |
| 1 | Integrated programming and control software | |
| 2 | Graphical tracking | |
| 3 | Arbitrary angle rotation | |
| 4 | Symmetrical machining | |
| 5 | Wire break protection | |
| 6 | Automatic shutdown upon program completion | |
| 7 | USB read/write functionality | |
| 8 | Four-axis coordinated cutting | |
| 9 | Automatic retraction on short-circuit | |
| 10 | Forward and reverse machining | |
| 11 | Machining simulation | |
| 12 | Power failure protection | |
| 13 | Data conversion for AutoCAD DXF and ISOG formats | |
| 14 | Molybdenum wire offset compensation |
3. Standard Accessories
| No. | Accessory |
| 1 | Work Light |
| 2 | Simple Fixture |
| 3 | Electrode Wire Vertical Alignment Device |
| 4 | Hand Lever |
| 5 | Wire Tensioner |
| 6 | Working Fluid System |
| 7 | Worktable Splash Guard |
4. Included Documentation
| No. | Documentation |
| 1 | Packing List |
| 2 | Factory Quality Inspection Report |
| 3 | One Copy of the System Operation Manual |
| 4 | One Copy of the Machine Tool User Manual |
5. After-Sales Service Instructions
- From the date of delivery, the supplier provides a one-year mechanical warranty. Under normal operating conditions, the supplier is responsible for free maintenance and replacement of spare parts; however, consumable parts, wear parts, and tools are not covered under the warranty.
- After the one-year warranty period, the supplier will provide the necessary spare parts for repairs and offer repair services at reasonable charges.
6. Training
The supplier shall provide free on-site training for 1–2 technical personnel at supplier’s site, with a duration of 1 to 2 days.
| No. | Item | Training Content |
| 1 | Programming | Instruction on programming techniques |
| 2 | Operation | Introduction to overall machine structure, startup procedures, and control panel key functions |
| Program call-up, detailed operation instructions | ||
| Operational precautions and safety measures | ||
| 3 | Mechanical Maintenance | 1) Overview of mechanical structures: |
| – Structure of X, Y, Z, U, and V axes | ||
| – Hydraulic and lubrication system structure | ||
| 2) Common mechanical issues and maintenance: | ||
| – Wire breakage handling procedures | ||
| 4 | Electrical Maintenance | 1) Identification of common electrical components and symbols |
| 2) Basic electrical knowledge introduction | ||
| 3) Explanation of machine electrical control diagrams | ||
| 4) Troubleshooting of common electrical faults | ||
| 5 | Testing | Practical hands-on testing and machine operation verification |
7. Key Component Description
| Name | Origin (Manufacturer) | Remarks |
| Control System | ||
| HL Integrated Programming & Control System | – | |
| Mechanical Parts | ||
| Casting | Domestic | HT200 resin sand |
| Ball Screw Pair | Domestic: Shaanxi Qishan | Grade P3 |
| Guide Rail | Domestic: Bearing steel | Quenched |
| Roller | Domestic: Shanghai Danli | |
| Bearing | Domestic: Harbin (Grade P5); Japanese: NSK | |
| Electrical Parts | ||
| AC Contactor | Siemens | |
| Relay | Omron | |
| High-Frequency Power Tube | Imported from Japan | |
| Transformer | Wuxi | |
| Stepper Motor | Changzhou Songya | |
| Others | Japan, Taiwan, Joint Venture | |
