Structure Assemblies

At Shiyi Metal, structural assembly works hand in hand with our CNC machining and sheet metal fabrication — our three core manufacturing capabilities for agricultural robotics, industrial automation and electric mobility electro-mechanical sub-assemblies.
Beyond producing standalone machined and sheet metal parts, we focus on custom pre-integrated sub-assemblies engineered to fit seamlessly into your complete equipment, including hinge assemblies, equipment enclosures, mounting brackets, motor integrated modules and assembly-ready hardware. All materials are selected per your drawings and specifications, with aluminum, stainless steel and titanium alloy options paired with professional surface treatments to deliver reliable corrosion resistance for long-service outdoor applications. Our facility is equipped with full precision dimensional inspection equipment, plus Hirays air tightness testing machines dedicated to leak verification of motor integrated assemblies.
Our assembly capabilities support both prototype development and volume production programs, covering precision multi-piece sub-assemblies, titanium fittings, stainless steel frameworks, complex integrated structures and high-volume pre-assembled kits. Whether you are developing a prototype, optimizing an existing design or scaling production, our engineering team can review your drawings, conduct full precision and airtightness validation, and recommend the most suitable manufacturing & inspection approach.

Structure Assemblies

Motor Complete Subassembly

We assemble fully finished motor modules with stator, rotor, housing and internal wiring in place. We accept either customer-provided raw motor cores or help source all raw materials for assembly. Finished motor subassemblies are ready for direct mounting onto your equipment frames for robotic and electric motion equipment assembly.
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Structural Component Mating Assembly

We provide precision tolerance mating assembly for custom CNC machined components and sheet metal parts manufactured strictly following your engineering drawings. All parts are processed with tight tolerance control for seamless fitting, removing assembly clearances effectively. This simplifies your subsequent general assembly workflow and shortens your entire product development schedule.
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Integrated Module Functional Testing

We carry out full operational performance inspection for all assembled modules. Equipped with professional airtight leak testing instruments, we implement sealing inspection for motor modules, outdoor camera housings and battery pack assemblies respectively, screening out leakage defects to guarantee stable outdoor long-term operation of your components.
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Prototype Revision & Small Batch Assembly

We cooperate with your R D phase by revising engineering drawings, adjusting structural dimensions and running trial assembly debugging. We support prototype modification validation and formal small batch trial production for motor and structural assemblies, focusing on component optimization rather than complete end-machine whole product development.
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