Custom Sheet Metal Manufacturer | Communication Chassis & Precision Structural Parts for Intelligent Equipment – San Jun Hardware

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Precision Structural Parts for Intelligent Equipment
Precision Structural Parts for Intelligent Equipment(2)
Precision Structural Parts for Intelligent Equipment (3)
Precision Structural Parts for Intelligent Equipment(4)
Precision Structural Parts for Intelligent Equipment(5)
Precision Structural Parts for Intelligent Equipment
Precision Structural Parts for Intelligent Equipment(2)
Precision Structural Parts for Intelligent Equipment (3)
Precision Structural Parts for Intelligent Equipment(4)
Precision Structural Parts for Intelligent Equipment(5)

Custom Sheet Metal Parts Fabrication, Communication Chassis Enclosure Machining, Precision Structural Sheet Metal Components for Intelligent Equipment

We are a full-process precision sheet metal manufacturer focusing on customized sheet metal components, communication cabinet housings and high-precision structural parts for intelligent automation equipment. We have overcome common industry bottlenecks: thin-plate bending springback deformation, cumulative assembly tolerance mismatch for multi-structure parts, welding thermal warpage, poor shielding consistency of communication chassis, unstable dimensional repeatability in mass production and coating adhesion defects. Equipped with in-house laser cutting, CNC precision bending, precision welding and standardized post-treatment workshops, we control tight dimensional tolerance and assembly matching accuracy strictly. We provide one-stop OEM & ODM customization services for communication manufacturers, intelligent equipment enterprises and automation system suppliers worldwide, delivering stable mass production, optimized structural cost and controllable delivery lead time.

製品概要

Our customized sheet metal business covers three core product categories:
  1. General Custom Sheet Metal Parts: Custom blanking, bending, stamping, welding and forming sheet metal accessories, brackets, mounting plates, connecting structural parts fabricated per customer drawings or samples, applicable to various mechanical and electronic assembly scenarios
  2. Communication Chassis & Enclosure Housings: Metal casings for network switches, optical transmission equipment, communication gateways, base station auxiliary cabinets, signal converters, server chassis and industrial communication hosts, with customizable shielding structure, wiring openings and internal partition layout
  3. Precision Structural Sheet Metal Parts for Intelligent Equipment: High-tolerance structural frames, mounting supports, panel assemblies and internal precision fittings for industrial controllers, IoT terminals, automated inspection equipment, vision equipment and smart control terminals
We complete full-process manufacturing: raw material cutting, high-precision punching, CNC bending, laser/TIG precision welding, tapping, riveting, deburring, electrostatic powder coating, conductive treatment, EMI shielding processing and pre-assembly. Our finished components feature rigid structural stability, ultra-precise matching tolerance, optional electromagnetic shielding performance, neat and uniform surface finish, fully meeting strict precision, assembly and shielding requirements of communication and intelligent equipment industries.

Core Advantages & Technical Pain Points We Have Resolved (Differentiated selling highlights)

  1. Solve Thin-Plate Bending Springback & Structural Deformation Defect

    Thin sheet metal used for communication and smart equipment structures easily generates springback after CNC bending, resulting in deformed outlines, uneven panel gaps and assembly failure. We adopt customized springback compensation mold design + segmented positioning bending technology, controlling bending angle tolerance within ±0.12°, ensuring flatness consistency of chassis frames and precision structural components, eliminating warpage and inconsistent gaps during mass production, greatly improving assembly pass rate.

  2. Eliminate Welding Thermal Deformation, Weld Pits & Visible Seams for High-Precision Chassis

    Communication chassis and exposed smart equipment structural parts demand high flatness and appearance quality; traditional welding easily causes thermal deformation, pits and rough weld traces, affecting assembly and shielding effect. We deploy pulse precision laser/TIG welding + follow-up fine grinding & deburring process to minimize heat-affected zone distortion, realizing nearly invisible welding seams, lowering post-surface-treatment rework rate, and meeting high-grade appearance & flatness standards for communication enclosure products.

  3. Control Cumulative Dimensional Tolerance for Multi-Piece Assembled Structures

    Precision sheet metal assemblies consist of multiple panels, brackets and mounting fittings; cumulative machining deviation often leads to misalignment during final assembly. We implement first-article 3D coordinate full inspection, unified fixture positioning for all working procedures to lock tolerance chains, guarantee interchangeability of spare parts, simplify your final assembly work and effectively reduce product rejection rate.

  4. Optimize EMI Shielding Structure & Surface Conductive Treatment for Communication Chassis

    Ordinary sheet metal chassis often suffer poor seam shielding, signal leakage and unstable conductive continuity. We customize shielding grooves, conductive contact strips and seam lap structures, with targeted conductive coating / nickel plating treatment, ensuring consistent electromagnetic shielding performance, helping communication equipment pass EMC electromagnetic compatibility certification smoothly.

  5. Stabilize Batch Dimensional Consistency for Long-Term Repetitive Orders

    Long-term bulk orders easily have batch-to-batch dimensional fluctuation caused by manual positioning deviation. We adopt standardized fixture positioning + program-locked machining parameters, implementing sampling inspection for raw materials, semi-finished products and finished products per batch, keeping dimensional deviation stable in repeated mass production, ideal for long-term framework order cooperation with communication and smart equipment brands.

  6. Improve Coating Adhesion to Prevent Paint Bubbling, Peeling & Edge Rust

    Cut edges and welding seams are prone to poor paint adhesion, bubbling and peeling after long-term use. We implement complete pre-treatment workflow: Degreasing → Derusting → Phosphating → Passivation before electrostatic powder coating, enhancing coating binding force; finished products pass 500-hour salt spray test, extending service life for indoor and semi-outdoor communication & intelligent equipment scenarios.

In-House Full-Chain Production Strength

  1. Complete self-operated production line: Fiber laser cutting, CNC precision bending, laser welding / argon arc welding, CNC punching, tapping, riveting, deburring, electrostatic powder coating, conductive surface treatment, screen printing and pre-assembly; no outsourced procedures, complete production traceability and reliable delivery schedule control.
  2. Rich structural development experience for communication & intelligent equipment: We provide early-stage DFM structural optimization suggestions to cut material cost, reduce processing difficulty, raise production yield and rationalize internal wiring and shielding layout for your chassis and precision structural parts.
  3. Multi-stage strict quality control system: Raw material incoming inspection → in-process dimensional sampling inspection → finished dimension, flatness & appearance full inspection → shielding performance sampling test for bulk orders, capable of large-volume long-term order cooperation.
  4. Flexible customization options: Available materials: cold rolled steel, galvanized steel, stainless steel, aluminum alloy, copper sheet; customizable overall dimension, hole layout, shielding structure, mounting mode, ventilation openings, surface finish, conductive treatment, laser engraved brand logo, export neutral packaging.

Main Application Scenarios

Communication Industry

Network switch chassis, optical communication equipment enclosure, gateway cabinet housing, base station auxiliary casing, signal transmission equipment shell, industrial communication control box

Intelligent Equipment Industry

IoT terminal precision structural parts, automated testing equipment frame, machine vision equipment bracket, industrial controller casing, smart access control terminal structural assembly

General Industrial Customization

Equipment mounting bracket, electrical control structural component, instrument panel assembly, mechanical equipment connecting fittings, electronic equipment internal support structure
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