How Good Is NOVICK‘s Die-Sinker EDM Machine? Performance Analysis of the AF Series Precision EDM

In the domestic die-sinking EDM field, Beijing NOVICK is a name that frequently comes up. Many mold and precision part manufacturers include it on their shortlists when selecting equipment. So, how good is NOVICK‘s die-sinking EDM machine? Can the AF Series meet the actual needs of precision machining?

This article does not pile up specifications. Instead, from a practical application perspective, it analyzes the comprehensive performance of the AF Series in terms of structure, discharge control, surface quality, efficiency, automation, and service, helping you make an informed decision.

I. Structure: A Solid and Stable “Ram-Type” Design

The mechanical structure of a die-sinking EDM machine directly determines long-term accuracy stability. The AF Series adopts a Ram-type sliding head structure with a fixed worktable. This means that no matter how heavy the workpiece is (AF50 maximum load 1000 kg, AF70 maximum load 2000 kg), the accuracy of the motion axes is not affected. A fixed worktable also brings another benefit: the operator is closer to the workpiece, making alignment and observation of the machining process more convenient.

Additionally, the integrated structure (main unit, tank, and electrical cabinet combined) makes installation and relocation significantly simpler. Once the equipment arrives on site, only leveling and power connection are required – no complex wiring or construction is needed.

User feedback: Many mold shop users report that when machining large die-casting molds and bumper molds on the AF Series, accuracy remains stable even after long-period operation, with no dimensional deviations caused by structural deformation.

II. Discharge Control: All-Digital Pulse Power Supply + Fuzzy Logic Algorithm

The discharge power supply is the “heart” of a die-sinking EDM machine. The AF Series uses an all-digital pulse power supply that can precisely detect and control every discharge pulse. Together with a fuzzy logic algorithm, the system senses the discharge gap condition in real time and automatically adjusts pulse energy and servo feed speed, keeping machining in an optimal state.

What does this mean for the operator? No more repeated trial cuts to “guess the parameters.” After selecting the material and machining requirements, the system automatically matches the optimal conditions and dynamically adjusts according to the actual working conditions during processing – ensuring both efficiency and low electrode wear.

User feedback: Some users report that when machining deep narrow slots or multi-cavity molds on the AF Series, arcing and secondary discharge are significantly less frequent than on their previous domestic machines. Machining stability is good, and electrode wear is low.

III. Surface Quality: Mirror Finish Achieved, Eliminating Extensive Polishing

For precision mold manufacturing, surface roughness directly determines product appearance and the amount of subsequent work. Under test conditions (copper electrode, S136 mirror steel, electrode area 300 mm²), the AF Series achieves an optimal surface roughness of Ra ≤ 0.1 μm – a true “mirror finish” level.

In actual production, many users report that after machining injection molds, connector cavities, and optical parts, the surface is directly usable for injection molding with virtually no hand polishing required. This not only saves polishing hours but also avoids dimensional deviations and edge rounding caused by manual polishing.

User feedback: “We machine S136 mold steel. The surface from the AF50 is like a mirror – the customer accepts it directly, no more polishing. With our old machine, the polishing craftsman would work all day.”

IV. Machining Efficiency: High Current for Fast Removal, Low Current for Precision Finishing

The AF Series comes standard with 50A current, with an optional 100A high-current configuration. During roughing, high current rapidly removes material, shortening the machining cycle. During finishing, the system automatically switches to a low-current, high-frequency mode to ensure surface quality. Combined with automatic orbiting (circular, square, vector, polygonal, and other orbiting modes), further efficiency gains are achieved during the smoothing process.

For large mold enterprises that frequently perform heavy roughing, the efficiency improvement with the optional 100A high-current configuration is particularly noticeable. Some users have compared: for the same deep-cavity workpiece, the AF Series reduces roughing time by a significant margin compared to older machines, while also achieving lower electrode wear.

V. Automation and Intelligence: Expandable and Easy to Operate

The AF Series supports optional C-axis (CNC indexing axis) and AEC (Automatic Electrode Changer) – up to 4 tools for the AF50 and up to 5 tools for the AF70. This enables four-axis simultaneous machining (e.g., helical grooves, helical gears) and continuous automatic multi-electrode processing, allowing unattended night-shift operation.

On the software side, the Windows 10 based CNC system has an intuitive interface, with a 17inch touch screen and a pendant control box, making the learning curve low. The built-in expert process parameter database covers common material combinations such as steel, copper, cemented carbide, and titanium alloy. Users simply call up the corresponding code, and the system automatically sets the parameters. For small and medium-sized enterprises, this greatly reduces reliance on “master craftsmen” – new employees can become proficient quickly.

VI. Service and Reliability: Obvious Advantages of Localization

Die-sinking EDM machines are fixed assets for long-term use, and after-sales service is no less important than the equipment itself. NOVICK has multiple service locations nationwide, providing on-site installation and commissioning, operator training, remote diagnostics, and regular inspections. Compared to the uncertain lead times of imported brands that require spare parts to be shipped from overseas, NOVICK‘s localized service and spare parts supply are much more timely.

In addition, the AF Series also considers safety and environmental protection: electromagnetic shielding, a smoke exhaust interface, and multiple safety protections for the work tank (automatic stop when fluid temperature is too high, automatic stop when fluid level is too low, and discharge stops when the door is opened), meeting the safety standards of modern factories.

VII. Conclusion

Taken together, the Beijing NOVICK AF Series Precision CNC Die-sinking EDM Machine is a domestic high-end model with solid performance, flexible configuration, and dependable service. It offers balanced performance in machining accuracy, surface quality, efficiency control, and automation expandability, making it especially suitable for precision manufacturing enterprises that seek “high value for money, just enough to meet needs, and worry-free operation.”

The best recommendation is: bring your most troublesome workpiece to a NOVICK technical center for a trial cut. Measure the surface with a roughness tester, check the dimensions with a caliper, and calculate the machining time and electrode consumption. You will then be able to draw your own conclusion.