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Advanced Machining Inc. (Advanced Machining of Longmont) is a precision machining company based in Longmont, Colorado, USA, with roots dating back to 1998. According to its website, the company is ITAR-registered and ISO 9001:2015 certified. Its positioning is clearly geared toward industrial, aerospace, product development, and high-precision parts manufacturing rather than an online manufacturing platform for individual consumers.
Its main capabilities include 5-axis high-speed simultaneous CNC machining, CNC milling/turning, multi-axis lathe machining with main/sub-spindles and live tooling, Wire EDM, and palletized machining systems. The website also mentions Mikron machining centers integrated with touch probes, which can reduce the number of setups, improve positioning accuracy, and shorten lead times. In addition, the company can support prototype development, short-run to long-run production, precision tooling, as well as outsourced or supporting processes such as heat treatment, welding/brazing, bending, anodizing, and plating.
The site does not publish standard pricing and uses the typical project-based quoting model common in B2B manufacturing. Customers need to submit PDF drawings and 3D models such as STEP or IGES files, and ensure that the revisions match the purchase order. Its terms state that if CAD files are not provided, drawing work is charged at USD 75/hour with a 1-hour minimum. Engineering changes, specification clarifications, order cancellations, and expedited requests may also incur additional fees. Overall, its quoting rules are relatively strict and best suited to mature procurement workflows.
The strengths are its solid equipment capabilities, covering 5-axis machining, mill-turn machining, Wire EDM, and inspection capabilities required for complex parts. Its ISO and ITAR credentials also strengthen its credibility for aerospace, defense, and other highly regulated industries. The downside is that the website feels more like a traditional corporate site: there is no instant online quoting, material database, tolerance capability table, case-study gallery, or customer industry examples. Its information transparency is not on the same level as digital manufacturing platforms such as Xometry or Protolabs.
It is better suited to local U.S. or North American business customers, especially manufacturers, engineering teams, and aerospace supply-chain companies that already have complete engineering drawings, BOMs, purchase orders, and quality requirements. It is less suitable for individual makers or small cross-border customers who simply want a quick estimate, online model upload, and direct ordering.
Judging by the site structure, it is a standard corporate website and uses Google reCAPTCHA plus a cookie notice. Pages can usually be accessed directly from mainland China, but form verification or Google-related components may load unreliably. If you are looking for a machining supplier from China, communication, logistics, payment, export controls, and ITAR restrictions all need to be confirmed in advance.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on advancedmachining.biz official site.
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