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Home Automotive Swiss-type Machining Battery-Relay iron core The Precision Behind High-Performance Relays
High Precision Relay Components for Automotive & EV Applications
High Precision Relay Components for Automotive & EV Applications
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High-Precision Relay Components for Reliable Power Control
High-Precision Relay Components for Reliable Power Control

The Precision Behind High-Performance Relays

  • Material:High-conductivity stainless steel (e.g., SUS304/316L) or copper alloy (e.g., phosphor bronze), with nickel/tin plating
  • Shape:Cylindrical shape with internal threads or stepped interface
  • Size Range:Diameter: Φ8mm – Φ25mm; Height: 10mm – 40mm (customizable)
  • Internal Design:Precision-machined bore for pin insertion or threaded connection
  • Surface Finish:Polished + plated (to enhance conductivity and anti-oxidation)
  • Manufacturing Process:CNC turning + precision grinding + electrochemical polishing
Categories: Automotive Swiss-type Machining, Battery-Relay, iron core
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Description

High-Current Conductivity & Low Contact Resistance

Designed for reliable power transmission in demanding electrical control systems, our precision-machined relay parts are manufactured from high-quality copper and silver alloy materials. Optimized contact surfaces help improve electrical conductivity, reduce contact resistance, and minimize heat generation during operation. Tight dimensional control ensures accurate contact alignment, supporting stable switching performance and reliable battery power isolation under demanding load conditions.

Industrial-Grade Materials for Demanding Environments

Engineered for automotive, EV, and industrial applications where durability and reliability are essential:

  • Secure Mechanical Structure: Precision-machined threads and optimized structural designs help maintain stable connections under vibration, shock, and repeated operating cycles.
  • Corrosion & Heat Resistance: Available with silver, tin, nickel, and other surface treatments to improve oxidation resistance, corrosion protection, and thermal durability in demanding environments.

Modular Design & Strict Quality Control

As a professional precision CNC machining manufacturer, Caiyi Precision provides reliable relay components with consistent dimensions and quality control throughout production:

  • Precision CNC Machining: Advanced CNC turning and automated inspection processes ensure accurate dimensions, consistent tolerances, and reliable assembly compatibility.
  • OEM/ODM Customization: We support customized materials, dimensions, thread specifications, structural designs, and surface treatments to meet different relay and power-control requirements.
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Who We Are

  • A leading ODM/OEM Swiss-type machining manufacturer with 25+ years of R&D experience. We deliver precision products with 0.001mm accuracy, serving industries like automotive, medical, and electronics.
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  • Adress:No.7 Fenghuang West Road, Humen Town,Dongguan City,Guangdong Province
  • Email:hanw1272@gmail.com
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  • Home
  • Product
    • Automotive Swiss-type Machining
      • Battery-Relay
        • iron core
        • Limiting post
        • Rolling nut Parts
      • Feihua Shaft
      • mandrel
      • Others
    • Electronic Swiss-type Machining
      • Electronic Lock
      • Watch Camera
      • Small rotating
      • Others
    • Fruit Blender Swiss-type Machining
    • Hardware Accessories
      • Spring seat, rotating seat body
      • Others
  • Blog
  • Applications
  • FAQ
  • About us
  • Contact us
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