{"id":359,"date":"2026-01-21T07:14:09","date_gmt":"2026-01-21T07:14:09","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?post_type=material&p=359"},"modified":"2026-03-12T15:05:29","modified_gmt":"2026-03-12T07:05:29","slug":"zinc","status":"publish","type":"material","link":"https:\/\/www.jccncmachining.com\/ja\/materials\/zinc\/","title":{"rendered":"Zinc"},"content":{"rendered":"

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Available Zinc Grades<\/h3>\n\n\n\n\n\n\n\n\n
Grade<\/th>\nCommon Name<\/th>\nKey Characteristics<\/th>\nTypical Applications<\/th>\n<\/tr>\n<\/thead>\n
Zamak 3<\/strong><\/td>\nZn-4Al<\/td>\nThe industry standard. Excellent balance of physical and mechanical properties. High dimensional stability.<\/td>\nAutomotive components, household hardware, electrical switchgear.<\/td>\n<\/tr>\n
Zamak 5<\/strong><\/td>\nZn-4Al-1Cu<\/td>\nContains copper for higher tensile strength and hardness than Zamak 3. Slightly lower ductility.<\/td>\nAutomotive parts requiring higher strength, accessories, fittings.<\/td>\n<\/tr>\n
ZA-8<\/strong><\/td>\nZinc-Aluminum Alloy<\/td>\nHigher aluminum content. Can be gravity cast. Superior creep resistance and strength.<\/td>\nHydraulic components, decorative hardware.<\/td>\n<\/tr>\n
ZA-12<\/strong><\/td>\nBearing Alloy<\/td>\nExcellent bearing properties (good alternative to bronze). High hardness and strength.<\/td>\nBearings, bushings, wear plates.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Zinc Machining Capabilities<\/h3>\n\n\n\n\n\n\n\n\n
Capability<\/th>\nTechnical Description<\/th>\nJucheng Advantage<\/th>\n<\/tr>\n<\/thead>\n
Functional Prototyping<\/strong><\/td>\nCNC machining solid Zinc blocks to simulate die-cast parts (Zamak 3\/5) for fit and function testing.<\/td>\nAllows clients to validate designs and mechanical properties physically without paying for expensive die-casting molds.<\/td>\n<\/tr>\n
Secondary Operations<\/strong><\/td>\nPrecision post-machining of die-cast zinc parts, including facing, boring, and tapping precise threads.<\/td>\nOur automated setups ensure high repeatability for large batches of automotive housings.<\/td>\n<\/tr>\n
High-Speed Drilling\/Tapping<\/strong><\/td>\nZinc is easy to machine; we utilize high-speed spindles to drill and tap holes rapidly.<\/td>\nSignificantly reduces cycle times and costs for parts requiring multiple fastening points.<\/td>\n<\/tr>\n
Surface Finishing<\/strong><\/td>\nProviding Chromate Conversion, Zinc Plating, or Powder Coating services.<\/td>\nEnhances the natural corrosion resistance of Zinc and prepares it for harsh environments (Salt Spray Test compliant).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Fabrication Guidelines for Zinc<\/h3>\n

Tooling:<\/strong>
\nZinc is non-abrasive and soft. Standard high-speed steel (HSS) or uncoated carbide tools work excellently. Sharp cutting edges are required to prevent burrs on exit.<\/p>\n

Workholding:<\/strong>
\nZinc is dense but can be brittle compared to aluminum. Care must be taken not to over-clamp thin-walled sections to avoid cracking or deformation. Soft jaws are recommended.<\/p>\n

Coolant:<\/strong>
\nWater-soluble coolant is recommended to keep the part cool and flush away chips. While Zinc can be machined dry, coolant prevents the material from smearing on the tool.<\/p>\n

Safety Note:<\/strong>
\nZinc dust can be flammable, though less so than Titanium\/Magnesium. Good housekeeping and chip management are standard protocols at Jucheng.<\/p>\n<\/div>\n

<\/p>\n

\n

Primary Application Industries<\/h3>\n

Automotive (IATF 16949)<\/strong>
\nKey Parts:<\/em> Door lock housings, mirror brackets, seat belt components.
\nWhy Zinc:<\/em> High strength, dimensional stability, and ability to cast complex net-shape parts that require minimal machining.<\/p>\n

Consumer Electronics<\/strong>
\nKey Parts:<\/em> Laptop hinges, connector shields, chassis frames.
\nWhy Zinc:<\/em> Excellent EMI\/RFI shielding properties and high-quality tactile feel (heavy\/premium) for user interfaces.<\/p>\n

Hardware & Construction<\/strong>
\nKey Parts:<\/em> Window handles, locks, bathroom fixtures.
\nWhy Zinc:<\/em> Easily plated (Chrome\/Nickel) for a decorative finish and durable enough for daily use.<\/p>\n

Industrial Components<\/strong>
\nKey Parts:<\/em> Gears, pulleys, motor housings.
\nWhy Zinc:<\/em> Self-lubricating properties (bearing bronze alternative) and vibration damping capabilities.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Available Zinc Grades Grade Common Name Key Characteristics Typical Applications Zamak 3 Zn-4Al The industry standard. Excellent balance of physical and mechanical properties. High dimensional stability. Automotive components, household hardware, electrical switchgear. Zamak 5 Zn-4Al-1Cu Contains copper for higher tensile strength and hardness than Zamak 3. Slightly lower ductility. Automotive parts requiring higher strength, accessories, fittings. ZA-8 Zinc-Aluminum Alloy Higher aluminum content. Can be gravity cast. Superior creep resistance and strength. Hydraulic components, decorative hardware. ZA-12 Bearing Alloy Excellent bearing properties (good alternative to bronze). High hardness and strength. Bearings, bushings, wear plates. Zinc Machining Capabilities Capability Technical Description Jucheng Advantage Functional Prototyping CNC machining solid Zinc blocks to simulate […]<\/p>\n","protected":false},"featured_media":360,"template":"","meta":[],"material_type":[9],"material_attribute":[],"application_feature":[23],"machining_process":[25,26,28,29],"class_list":["post-359","material","type-material","status-publish","has-post-thumbnail","hentry","material_type-metal","application_feature-corrosion-resistant"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/material\/359","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/types\/material"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media\/360"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media?parent=359"}],"wp:term":[{"taxonomy":"material_type","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/material_type?post=359"},{"taxonomy":"material_attribute","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/material_attribute?post=359"},{"taxonomy":"application_feature","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/application_feature?post=359"},{"taxonomy":"machining_process","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/machining_process?post=359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}