{"id":2509,"date":"2026-09-24T10:42:50","date_gmt":"2026-09-24T02:42:50","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?p=2509"},"modified":"2026-09-22T11:16:24","modified_gmt":"2026-09-22T03:16:24","slug":"rohs-vs-reach-machined-components","status":"publish","type":"post","link":"https:\/\/www.jccncmachining.com\/ko\/blog\/rohs-vs-reach-machined-components\/","title":{"rendered":"RoHS or REACH? Ask the Right Question Before Parts Ship"},"content":{"rendered":"

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\u201cMust this CNC part be RoHS and REACH compliant?\u201d sounds like one question, but it combines two different European legal frameworks. RoHS restricts specified hazardous substances in electrical and electronic equipment. REACH regulates chemicals more broadly and can create communication or notification duties when Candidate List substances are present in articles. A supplier declaration for one does not automatically answer the other.<\/p>\n

For machined components, the safest approach is to define the destination product, applicable scope, material and finish configuration, evidence date, and party responsible for the final compliance determination. A generic certificate with no part number or revision is weak evidence\u2014even when its heading contains both acronyms.<\/p>\n

Start with the finished product, not the alloy name<\/h2>\n

\"finished-product-scope\"\nA 6061 aluminum bracket may be outside RoHS scope when used in a standalone mechanical product, yet the same bracket can become part of electrical and electronic equipment subject to RoHS obligations. A brass contact, electroless-nickel finish, chromate conversion coating, paint, adhesive, lubricant, or polymer insert may also introduce substances not apparent from the base-metal designation.\n\nREACH asks another set of questions: Is the machined item an \u201carticle\u201d? Does it contain a Candidate List substance above the applicable concentration threshold? What information must move through the supply chain? The answers depend on the supplied configuration and legal role, not on a machining process alone.\n\nThese compliance references belong alongside the wider CNC machining standards<\/a> that govern drawings, materials, finishes, and acceptance\u2014but they should not be reduced to a title-block badge.<\/p>\n

RoHS and REACH control different risks<\/h2>\n

\"different-regulatory-risks\"\n\n\n\n\n\n\n\n\n
Procurement question<\/th>\nRoHS<\/th>\nREACH<\/th>\n<\/tr>\n<\/thead>\n
Primary focus<\/td>\nRestricted substances in covered electrical and electronic equipment<\/td>\nManufacture, use, supply, and communication of chemicals, including substances in articles<\/td>\n<\/tr>\n
Does every machined part fall in scope?<\/td>\nNo; scope follows the covered equipment and exemptions<\/td>\nObligations depend on substance, concentration, role, tonnage, and how the article is placed on the market<\/td>\n<\/tr>\n
Is it a one-time static list?<\/td>\nNo; restrictions and exemptions can change<\/td>\nNo; the Candidate List and regulatory actions evolve<\/td>\n<\/tr>\n
Typical evidence<\/td>\nSupplier declaration, material\/process data, targeted test report where justified<\/td>\nSVHC declaration, composition data, safe-use information, and applicable notifications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The European Commission currently states that RoHS restricts ten substances in covered EEE. Its official RoHS overview<\/a> should be checked for scope, exemptions, and updates rather than relying on an undated supplier template.<\/p>\n

A machined part is more than its base material<\/h2>\n

\"material-layers\"\nCompliance review should follow the bill of substances and processes that create the delivered item. The base stock is only the first layer.\n\n\n