CIXIN MACHINERY TECHNOLOGY
Electronic Controller Enclosure Housing Matched with Gold-Plated DB9 D-SUB 9Pin Male Connector
Manufacturing Method: Brass Stamping + PBT Injection Molding + Gold Electroplating Surface Treatment
- Material: C2680 Brass Pins, UL94 V-0 Flame Retardant PBT Insulator, Nickel Underlayer + Hard Gold Plating
- Lead Time: 3 working days
- Tolerance: ±0.07mm
- Post-treatment: Degreasing activation, nickel base electroplating, hard gold plating, passivation, deburring, full plating inspection
- Structure Feature: Full gold-plated contact pins, dual-side lock mounting flanges, vertical PCB solder terminals, integrated gold-plated shielding metal shell
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- Description
- Specification
- Application
- FAQS
This DB9 D-SUB 9pin male connector is a standard serial communication matching part for industrial electronic controller housings. All conductive pins and outer metal shell are processed with professional gold electroplating craft. A compact nickel underlayer is pre-plated before gold coating to greatly enhance the adhesion of the gold layer, effectively resisting oxidation and corrosion caused by long-term plugging and humid industrial environments, while maintaining ultra-low contact resistance to ensure stable lossless transmission of RS232/RS485 signals.
Dual-side mounting flanges with standard through holes can be tightly locked on the reserved opening of controller enclosures to form a complete shielding structure. Rear straight solder pins can be directly welded to the internal main PCB, simplifying internal wiring layout. Ordinary unplated stamped connectors are prone to oxidation and signal attenuation under electromagnetic interference; single injection molded plastic parts lack conductive shielding function. We combine stamping, injection molding and gold electroplating three core processes to complete the product. All metal parts go through multi-stage ultrasonic degreasing and surface activation before electroplating to avoid peeling or missing plating. After plating, deburring and full dimensional & plating thickness inspection are implemented, guaranteeing perfect matching assembly with various electronic control shells. The hard gold plating layer has excellent wear resistance, keeping intact coating after thousands of plugging cycles. When customers adjust the controller housing structure, we only need to optimize stamping/injection molds, and synchronously adjust electroplating parameters to match new equipment iteration demands.
| Item | Specification |
|---|---|
| Core Craft | Brass Stamping + PBT Injection Molding + Gold Electroplating |
| Raw Material | C2680 Brass Terminal, UL94 V-0 PBT Plastic, Nickel Base + Hard Gold Plating |
| Dimensional Tolerance | ±0.07 mm |
| Minimum Contact Gold Thickness | 0.8μm Hard Gold |
| Delivery Cycle | 3 working days after drawing confirmation |
| Available Post Finish | Standard full gold plating, selective thickened gold plating, laser marking |
| Electrical & Anti-Corrosion Performance | Contact resistance ≤8mΩ, passes 48-hour neutral salt spray test |
Q1: Can the gold-plated pins sustain frequent repeated plugging?
Q2: Can we print custom model or brand logos on the gold-plated metal shell?
Q3: How fast can revised connectors be produced after structural drawing changes?
Q4: Is gold electroplating more suitable for small batch or mass production?
Q5: Will the gold plating layer fall off during long-term service?
Q6: Can we switch to silver electroplating if ultra-high frequency low-resistance transmission is needed later?
