OEM assembly series can be divided into three core dimensions: machining accuracy, degree of automation, and industry application scenarios, covering full-scenario OEM needs from simple civilian products to high-end precision industrial equipment. The specific classifications are as follows:
🔧 Classified by machining accuracy
Ordinary assembly processing: Low requirements for assembly tolerances and splicing precision, high tolerance for parts fitting, mainly manual simple splicing and screw fixing, mostly used for household goods, simple hardware accessories, ordinary plastic products, daily appliance casings, and other civilian products.
Precision assembly processing: Assembly accuracy can reach the micron level, with extremely high requirements for working environments and operational standards, requiring completion in cleanroom workshops. Typical applications include assembly of high-precision components such as medical electronic sensors, semiconductor packaging components, and high-end optical lenses.
High-precision special assembly: Targeting aerospace and military-grade core components, it must meet stability requirements under extreme environments, with full production data traceability. Only leading foundries with special qualifications can undertake it.
🤖 Classified by degree of automation
Fully manual assembly: almost no automation equipment required, relying entirely on manual work to complete parts assembly, screw tightening, inspection, and other processes. Suitable for simple-structured, small-batch, multi-variety niche products, such as handmade cultural and creative accessories and customized small hardware pieces.
Semi-automated auxiliary assembly: Manual and automated equipment work in tandem, with the equipment performing repetitive high-precision steps such as screw tightening, dispensing, and welding. Manual handling of loading and unloading and splicing complex components is currently the mainstream model for small to medium-batch OEM assembly.
Fully automated unmanned assembly: The entire assembly line operates in a fully closed-loop operation using industrial robots and intelligent inspection equipment, requiring no manual intervention. The daily production capacity can reach hundreds of thousands of pieces, with strong consistency, suitable for large-scale standardized products such as consumer electronics and fast-moving consumer goods, such as complete mobile phone assembly and one-time 3C component assembly.
📦 Classified by core industry application scenarios
Electronic and electrical OEM assembly :*** mainstream assembly categories, covering the entire process from SMT placement, plug-in soldering, functional aging testing, to complete machine assembly and finished product packaging. It subdivides it into sub-fields such as consumer digital, intelligent industrial control, automotive electronics, security communications, and medical electronics, making it the segment with the largest share of the OEM foundry industry today.
OEM assembly of household daily necessities: mainly splicing simple structural parts, with low process thresholds and large production capacity, commonly found in plastic home furnishings, simple furniture, small kitchen and bathroom appliances, toys and gifts, etc. OEM factories are mostly concentrated in light industry cluster areas.
Industrial Equipment OEM Assembly: Targeting industrial-grade non-standard equipment, it requires integrated assembly of heavy machinery components, electrical control systems, and hydraulic modules. It requires high technical qualifications from workers and is mostly used for automated production line accessories, industrial instruments and meters, power equipment components, and other products.
OEM assembly of automotive parts: Strict adherence to the IATF16949 automotive industry quality system is required, and assembly of electronic control units, interior functional components, headlight assemblies, and other components is completed, with extremely high requirements for reliability and durability testing.
OEM assembly of medical health products: Must hold Class II or above medical device production qualifications, assemble in a cleanroom with no cross-contamination throughout the process, mostly used in medical monitors, disposable medical consumables, home health testing equipment, and other products.