Punched Parts / Piercing Parts

Punched and piercing parts are fundamental sheet metal components manufactured via blanking and piercing stamping procedures, which separate metal materials by mechanical shearing force under matched stamping dies. Different from deep drawing hollow structures or multi-angle bending stampings, this category focuses on cutting complete outer outlines and punching precise through-holes, counterbores, slots and special-shaped cutouts on flat metal blanks. Piercing specifically refers to machining internal holes and hollow features, while punching covers both outer contour blanking and internal hole cutting. This high-speed forming process delivers consistent hole positioning, clean cutting edges and uniform dimensional performance, serving as the base component for nearly all sheet metal assembly hardware.

Our workshop specializes in custom punched and piercing parts with full material compatibility, covering cold rolled steel, galvanized sheet, stainless steel, aluminum alloy, copper and brass sheets of various thicknesses. We support micro fine piercing for tiny precision holes as well as heavy-duty punching for thick industrial plates. Equipped with high-speed stamping presses and precision carbide piercing dies, we effectively eliminate burrs, hole deformation and edge cracking during the punching cycle. The shearing clearance of each die is precisely calibrated according to metal hardness and thickness, ensuring smooth, burr-free cut surfaces without secondary grinding for most finished products. All hole center distances, hole diameters and overall outline dimensions are locked within tight tolerances to match automated assembly standards.

The complete production workflow for our punched and piercing components includes raw material slitting, material flattening, positioning punching, multi-hole simultaneous piercing, slot cutting, edge trimming and deburring finishing. We fully accept OEM and ODM customization based on customer CAD drawings, technical specifications or physical samples. Our engineering team optimizes die layout to maximize material utilization and reduce production costs for mass orders. We handle simple single-hole flat punched plates as well as complex multi-cavity parts with arrays of circular holes, oval slots, square cutouts and special shaped piercing openings. Complex combined processing is available to integrate punching, piercing and minor bending in one production run to cut secondary processing steps for clients.

A full spectrum of surface finishing treatments can be applied to all punched and piercing parts to adapt to diverse working conditions. Available processes include zinc plating, nickel plating, chrome plating, powder coating, spray painting, anodizing, passivation and mirror polishing. These surface treatments greatly boost anti-rust, anti-corrosion and wear-resistant performance without distorting hole shapes or dimensional accuracy. After finishing, the punched components maintain stable flatness and hole precision, suitable for indoor electrical equipment, outdoor machinery and harsh humid industrial environments.

Punched and piercing parts have universal applications across all manufacturing sectors. Representative products include perforated metal plates, fixed mounting plates, connector terminals, filter mesh blanks, equipment shielding sheets, automotive connecting gaskets, electrical cabinet panels, agricultural machinery baffles and construction hardware fittings. Precise piercing holes are critical for bolt fixing, positioning, ventilation, filtering and wiring layout, making punched components indispensable basic accessories in automotive, new energy, electronics, household appliances, communication, construction and mechanical equipment industries.

We enforce rigorous full-process quality control for all punched and piercing products. Raw material hardness and thickness are inspected before production. Real-time sampling checks are carried out during continuous stamping to monitor hole size, hole spacing and flatness. Finished goods are fully inspected with calipers, pin gauges and coordinate measuring instruments to filter out defective items with oversized holes, offset positions or rough edges. Stable batch consistency guarantees high interchangeability for automated production lines of global manufacturers.

We provide one-stop custom punching and piercing solutions for worldwide industrial purchasers. With independent mold design and manufacturing capacity, high-efficiency automated stamping lines and years of experience in precision hole machining, we balance superior accuracy, fast lead time and competitive unit prices. Whether small-batch prototype trial production or large-volume mass manufacturing of standard punched parts, we deliver reliable, cost-effective metal components and professional technical support to build long-term stable partnerships with global customers.