Electrical Brass Switch Socket Parts | Custom Stamping & Machining Components

 

 

Electrical brass switch and socket parts serve as the core internal conductive pathways, terminals, and mechanical spring contact elements inside low-voltage wiring devices. Production utilizes precision high-speed stamping presses and multi-axis CNC machining centers to process high-conductivity copper and brass alloys. Each component is engineered to maintain stable contact pressure, low electrical resistance, and strict dimensional conformity across long-term automated assembly operations.

 

 
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Types and Specifications

 

Component Type

Primary Material

Thickness / Dimensions

Surface Treatment

Standard / Application

Socket Contact Shutter / Clip

CuSn6 / Phosphor Bronze

0.5 mm - 1.2 mm

Silver Spot Plating / Bare

BS 1363 / IEC 60884 Sockets

Switch Rocker Contact Bridge

CuZn37 / Brass

0.8 mm - 1.5 mm

Silver Inlay / Flash Silver

IEC 60669 Wall Switches

Pillar Terminal Block / Screw Insert

C36000 / Free-Cutting Brass

OD 4.0 - 8.0 mm, L: 8-20 mm

Acid Pickled / Nickel Plated

Universal Wiring Terminals

Earthing Terminal Plate

H62 / Brass Sheet

0.6 mm - 1.0 mm

Anti-Oxidation Passivation

IEC Compliant Socket Bases

 

Materials / Standard

Copper Alloys

Manufactured using CuZn37 (H62) and CuZn39Pb3 (C36000) for structural terminal parts, alongside Phosphor Bronze (CuSn6) and Beryllium Copper for spring-loaded contact clips requiring high fatigue resistance. Electrical conductivity ranges from 28 percent to 56 percent IACS depending on alloy selection.

Standard Compliance

Produced in accordance with BS 1363, IEC 60669, IEC 60884, and UL 498 mechanical and electrical performance frameworks.

Material Verification

Raw materials accompanied by mill test certificates (MTC) and verified through direct spectrometer chemical analysis per incoming batch.

 

Product Structure

 

Copper Connecting Tab for Power Plug

Contact Surfaces

Engineered with precision flat or profiled contact points, frequently enhanced with silver alloy spot welding or rivet tips to minimize contact resistance and prevent electrical arcing during switching.

Brass Electrical Contacts

Spring Elements

Designed with optimized bending radii and uniform grain orientation to ensure sustained clamping force and prevent stress relaxation over tens of thousands of mechanical cycles.

Electrical Brass Switch Socket Part

Terminal Integration

Features pre-tapped metric threads (M2.5 - M4), cross-drilled wire binding holes, or stamped staking lugs for secure mechanical bonding inside molded thermoset or thermoplastic housings.

 

Surface Finishes

 

 

Silver Plating (Electroplated / Spot)

1 um - 3 um pure silver coating applied to electrical contact zones to ensure low micro-ohm contact resistance and high resistance to arc erosion.

 

Electroplated Nickel

3 um - 5 um bright nickel over copper flash applied to structural and terminal parts for corrosion protection.

 

Acid Passivation

Ultrasonic degreased and chemically passivated raw brass/bronze finish designed for clean internal over-molding applications.

 

 

Application
 

Residential and commercial rocker wall switches and dimmer modules.

Standardized socket outlets (BS, Schuko, French, and universal modular types).

Industrial distribution box terminal blocks and plug-in power strips.

Low-voltage electrical control panel internal busbars and bridge links.

 

OEM Customization

 

Custom Tooling Development

Progressive stamping dies and multi-axis CNC machining programs built directly from customer 2D/3D CAD data (STEP/IGES).

Alloy & Plating Adjustments

Customized material selection (e.g., upgrading to high-conductivity copper or specific silver thickness ratios) tailored to rated current load requirements (10A to 45A).

Sample Turnaround

Prototyping and sample delivery within 7 to 10 business days utilizing wire EDM and in-house tool room machining.

 

Manufacturing Capability
 
 

Stamping Infrastructure

35 high-speed precision punch presses (ranging from 25T to 160T) equipped with electronic feeding units and automated die protection sensors.

 
 
 

Machining & Tapping

Integrated multi-axis CNC turning centers and automated secondary tapping machines running parallel with stamping operations.

 
 
 

In-House Tooling Shop

Dedicated tool-making division utilizing CNC wire cutting and surface grinding machines to maintain die maintenance and rapid tool fabrication.

 

 

 
 
QC
01.

Dimensional Screening

100 percent automated optical sorting and vision inspection systems checking critical hole locations, material thickness, and profile dimensions.

02.

Spring Force Testing

Digital push-pull force gauges verifying insertion and withdrawal retention force tolerances on socket clips.

03.

Coating Thickness Verification

X-ray fluorescence (XRF) testing confirming electroplated silver and nickel layer thickness consistency.

04.

Hardness & Microstructure Testing

Vickers hardness testing and metallographic analysis ensuring proper spring temper and grain structure.

 

 

Company

 

20260324114209c14db

 

What to Specify When Ordering

Part Geometry & Drawings: Provide 2D drawings with geometric dimensioning and tolerancing (GD&T) along with 3D CAD files.

 

Material Designation: Specify exact alloy grade (e.g., CuSn6 for springs, C36000 for screw terminals) and material thickness.

 

Plating Specifications: Define plating type, coverage area (full plating vs. selective/spot silver plating), and minimum thickness in microns.

 

Electrical / Mechanical Requirements: State rated current (Amps), target lifecycle test cycles, and insertion force limits.

 

Volume & Packaging: Annual demand forecasts, batch quantities, and protective packaging requirements (anti-corrosion paper interleaving or vacuum-sealed tray packing).

 

 

FAQ

 

 

Q: What copper and brass alloys are available for custom switch and socket parts?

A: Production utilizes standard electrical brass (CuZn37 / H62), free-cutting brass (C36000 / CuZn39Pb3), and high-elasticity copper alloys including phosphor bronze (CuSn6) and beryllium copper for contact clips requiring persistent spring memory.

Q: Do you offer selective or spot silver plating for contact areas?

A: Yes. To optimize material costs while maintaining low electrical resistance at contact points, selective electroplating, silver spot welding, or silver rivet inlay methods are applied strictly to active contact zones.

Q: How do you prevent spring relaxation and contact failure over time?

A: Material selection prioritizes cold-rolled strip stock with controlled grain structures. Stamping dies are aligned along the optimal rolling direction to maximize tensile strength and minimize spring fatigue across repeated switching cycles.

Q: Can you manufacture complex parts combining stamping and threaded features?

A: Yes. Production workflows integrate high-speed progressive stamping with secondary automated in-die or post-stamping CNC tapping and threading units, allowing single-process delivery for complex terminal components.

Q: What quality control steps are taken during high-volume production runs?

A: Batches undergo rigorous first-article inspection (FAI), in-process patrol checks, and 100 percent automated optical sorting (CCD) to screen out dimensional deviations, burrs, and plating defects prior to final packaging.

Q: What is the standard lead time for new OEM tooling and prototype samples?

A: New progressive stamping tool fabrication and initial sample production typically require 12 to 18 calendar days, depending on part geometry complexity and cavity count.

Q: How are delicate precision metal parts protected during international shipping?

A: Components are packed in custom anti-static vacuum-formed trays or layered with VCI (Volatile Corrosion Inhibitor) anti-rust paper inside heavy corrugated export cartons to prevent bending, scratching, or oxidation during transit.

Q: What inspection documentation is included with bulk shipments?

A: Each shipment is dispatched with a comprehensive Material Test Report (MTR), dimensional inspection report sheets, plating thickness verification records, and Certificate of Conformity (CoC).

We're well-known as one of the leading electrical brass switch socket part manufacturers in China, specialized in providing high quality customized products. Please feel free to buy discount electrical brass switch socket part made in China here from our factory. For quotation and free sample, contact us now.

Copper Connecting Tab For Power Plug, electrical brass switch socket part, Drawn Copper Spring Contact
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