In the precision manufacturing process of 3C electronic products, the punching process directly affects the assembly accuracy and electrical performance of key components such as connectors, shields, housings, and brackets. ZHONGWANGDA (DONGGUAN) PRECISION MOLD CO., LTD. provides various types of precision punching products tailored to the characteristics of 3C industry parts—small dimensions, tight tolerances, and diverse materials (such as stainless steel, copper alloy, aluminum alloy, engineering plastics, etc.). The company does not blindly pursue "maximum" or "fullest" capabilities. Instead, it reasonably matches punch pin material, clearance, and structural style according to customer drawings, samples, and process requirements. For example, when machining micro steel holes on a mobile phone connector shield, burrs can be reduced by controlling the punching clearance; when machining light-transmitting holes on a photoelectric sensor housing, hole position consistency and cross-section smoothness can be ensured. At the same time, ZHONG WANG DA supports bottom scrap clearance hole design to facilitate automatic scrap ejection in progressive dies and reduce manual intervention. For non-standard hole shapes in the R&D stage, the company can provide rapid prototyping to help customers shorten product iteration cycles.

The new energy industry places high demands on the reliability and production efficiency of power batteries, energy storage systems, and e-drive components. In parts such as battery top covers, explosion-proof valve bodies, busbars, copper-aluminum connectors, and insulation brackets, the precision of the punching process and the scrap ejection capability directly affect the continuous operation of automated production lines. ZHONGWANGDA (DONGGUAN) PRECISION MOLD CO., LTD. provides punching products including side scrap clearance holes, stepped holes, hexagonal holes, and bottom half-blanking holes, tailored to the materials used in the new energy industry (such as aluminum alloy, copper, nickel strip, and coated metals) and their thickness ranges. The company focuses on smooth scrap ejection and die life in actual stamping operations. For example, using a side scrap clearance stepped hole structure in a progressive die allows punching and step forming to be completed in one stroke, with scrap automatically cut and ejected sideways, reducing the risk of scrap accumulation in the die cavity. For steel holes on conductive connectors, burrs can be minimized by properly controlling the punching clearance, avoiding local discharge or assembly interference caused by burrs. For non-standard hole shapes, such as special-shaped explosion-proof holes or positioning anti-rotation holes, the company can provide custom design and manufacturing based on customer-supplied 3D data.

Hardware products cover a wide range of categories including furniture hardware, construction hardware, mechanical parts, daily-use hardware, and tool parts. Punching processes for these products often face challenges such as high material strength (e.g., stainless steel, carbon steel), diverse hole shapes, and strict fit requirements with springs or screws. Based on years of experience in punching die manufacturing, ZHONGWANGDA (DONGGUAN) PRECISION MOLD CO., LTD. provides hardware product manufacturers with spring holes, screw spring holes, copper-head-free spring holes, steel holes, side scrap clearance holes, hexagonal side scrap clearance holes, bottom scrap clearance holes, bottom half-blanking holes, and various non-standard punching dies. For example, in hinges or butt hinges, the spring hole must have a smooth wall and a diameter that matches the spring's outer diameter to avoid spring sticking or misalignment. In quick-release devices or adjustable feet, the screw spring hole needs to accommodate both a screw and a spring; the company can complete this composite structure in a single punching operation. For scenarios requiring automatic scrap ejection in progressive dies, bottom scrap clearance or side scrap clearance hole structures can be designed to reduce manual cleaning. In addition, ZHONG WANG DA supports custom non-standard special-shaped holes (oblong, oval, square, D-shaped, etc.) to meet the diverse design requirements of hardware products, helping customers reduce outsourcing lead times and die costs.