{"id":832,"date":"2026-03-14T11:32:05","date_gmt":"2026-03-14T03:32:05","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?post_type=material_model&p=832"},"modified":"2026-03-14T11:32:05","modified_gmt":"2026-03-14T03:32:05","slug":"machine-grade-pc","status":"publish","type":"material_model","link":"https:\/\/www.jccncmachining.com\/es\/materials\/pc-polycarbonate\/machine-grade-pc\/","title":{"rendered":"Machine Grade PC"},"content":{"rendered":"

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Polycarbonate (PC) Material Variants<\/h3>\n\n\n\n\n\n\n\n
Grade<\/th>\nCommon Name<\/th>\nKey Characteristics<\/th>\nTypical Applications<\/th>\n<\/tr>\n<\/thead>\n
Machine Grade PC<\/strong><\/td>\nStress-Relieved PC<\/td>\nSpecially annealed to remove internal stresses. Best for machining tight tolerances without cracking or warping.<\/td>\nManifolds, complex structural housings, semiconductor parts.<\/td>\n<\/tr>\n
Optical Grade PC<\/strong><\/td>\nLexan\u00ae \/ Makrolon\u00ae<\/td>\nHighest light transmission and clarity. Optimized for vapor polishing to achieve glass-like finishes.<\/td>\nLenses, sight glasses, light guides, protective visors.<\/td>\n<\/tr>\n
Glass-Filled PC<\/strong><\/td>\nPC GF20 \/ GF30<\/td>\nReinforced with glass fibers. Much higher stiffness and heat resistance, but opaque and abrasive to tools.<\/td>\nIndustrial brackets, load-bearing electronics frames.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Machine Grade PC 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
Vapor Polishing<\/strong><\/td>\nUsing solvent vapor to smooth machined surfaces, restoring optical clarity to internal channels and external faces.<\/td>\nWe achieve near-glass transparency on complex PC manifolds, allowing for visual inspection of fluid flows in medical devices.<\/td>\n<\/tr>\n
Tight-Tolerance Milling<\/strong><\/td>\nLeveraging the stability of stress-relieved PC to hold dimensions within +\/- 0.02mm across large, complex geometries.<\/td>\nOur 5-axis CNC machines deliver highly accurate electronic housings and semiconductor nests with zero dimensional drift.<\/td>\n<\/tr>\n
Precision Boring & Tapping<\/strong><\/td>\nDrilling and threading without the “crazing” or micro-cracking common in non-annealed polycarbonate.<\/td>\nWe utilize sharp, high-speed spindles to achieve burr-free threads that maintain structural integrity under mechanical load.<\/td>\n<\/tr>\n
In-House Stress Management<\/strong><\/td>\nPost-machining annealing cycles to ensure the part remains stable after heavy material removal.<\/td>\nJucheng guarantees that your PC components won’t “snap” or warp over time, even when exposed to fluctuating industrial temperatures.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Fabrication Guidelines for Machine Grade PC<\/h3>\n

Chemical Compatibility Warning:<\/strong>
\nPolycarbonate is highly sensitive to certain cutting oils and solvents, which cause immediate stress cracking. Tip:<\/strong> We use strictly compatible, water-soluble coolants or air-blast cooling to protect the material during CNC runs.<\/p>\n

Sharp Tooling Strategy:<\/strong>
\nPC is ductile and can smear if the tool is dull. Tip:<\/strong> We use ultra-sharp, uncoated carbide tools with high positive rake angles to shear the plastic cleanly and minimize frictional heat.<\/p>\n

Impact Resistance Preservation:<\/strong>
\nWhile PC is the “unbreakable” plastic, surface scratches or stress risers from improper machining can reduce its impact strength. Tip:<\/strong> We use fine-step finishes to ensure the surface is smooth and free of microscopic stress points.<\/p>\n

Annealing and Sizing:<\/strong>
\nFor critical tolerances, we perform a rough-machining pass, followed by a stabilizing period, and then a final finish pass to account for any microscopic material movement.<\/p>\n<\/div>\n

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Primary Applications<\/h3>\n

Semiconductor Equipment<\/strong>
\nStructural frames, nests, and wafer handling components that require high impact strength and dimensional stability.<\/p>\n

Medical Device Housings<\/strong>
\nTransparent or opaque manifolds and housings that must withstand impact while providing visibility into fluid systems.<\/p>\n

Industrial Machine Guards<\/strong>
\nClear structural panels and safety shields that must provide absolute protection to operators from flying debris.<\/p>\n

Aerospace & Defense<\/strong>
\nInternal structural components and electronic enclosures that benefit from PC’s light weight and extreme durability.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Polycarbonate (PC) Material Variants Grade Common Name Key Characteristics Typical Applications Machine Grade PC Stress-Relieved PC Specially annealed to remove internal stresses. Best for machining tight tolerances without cracking or warping. Manifolds, complex structural housings, semiconductor parts. Optical Grade PC Lexan\u00ae \/ Makrolon\u00ae Highest light transmission and clarity. Optimized for vapor polishing to achieve glass-like […]<\/p>\n","protected":false},"featured_media":833,"template":"","meta":[],"class_list":["post-832","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/material_model\/832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/media\/833"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/es\/wp-json\/wp\/v2\/media?parent=832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}