Electrical Connector Injection Mold with Metal Insert Overmolding

Technical Specifications
|
Item |
Specification |
|
Material (Connector Body) |
ABS Plastic (as referenced in drawing) |
|
Metal Inserts |
Copper/Brass or customer-specified terminal materials |
|
Manufacturing Process |
Plastic injection molding + metal insert overmolding |
|
Finish |
Smooth molded surface; no sink marks, voids, cavities, or cosmetic defects per drawing notes |
|
Dimensional Standard |
Based on 3D CAD dataset; 2D drawing dimensions for inspection only |
|
Geometric Requirements |
Free of pull marks, creases, or warpage unless engineering-approved |
|
Tolerance Control |
Per drawing: typical tolerances as low as ±0.005–0.010 inches on critical features |
|
Design Features |
Precision pin alignment, robust housing structure, stable electrical interface |
|
Quality Standard |
100% inspection on metal insert positioning and bond integrity |
About Our Company
Benma Electric Co., Ltd. is a specialized manufacturer of custom injection molds, precision plastic components, and metal-insert molded parts. With more than two decades of experience, we support global OEM/ODM projects in the electronics, automotive, industrial, and communication sectors.
Our manufacturing capabilities include:
Custom Injection Mold Design (3D modeling, DFM, Mould Flow simulation)
Metal Insert Overmolding with automated pin-loading systems
High-precision CNC machining for tight-tolerance mold cavities
Multi-cavity, family molds, and automatic demolding systems
Integrated process control for plastic–metal bonding reliability
In-house tool maintenance ensuring stable long-term production
We deliver solutions that combine electrical performance, mechanical integrity, and cost-effective mass production.
Manufacturing Advantages
High repeatability for connector components requiring exact alignment
Custom metal insert fixtures designed to secure terminals during molding
Optimized gating & cooling for minimal shrinkage and dimensional stability
Advanced mold steels for long lifespan in high-volume production
Automated molding cells that improve cycle time and reduce human error
ISO-grade quality control with SPC and CMM measurement support
Application Scenarios
This connector solution is widely used in:
Electrical and electronic equipment
Automotive wiring systems
Communication devices and signal modules
Industrial control panels
Battery-powered tools and appliances
Surveillance and data-recording equipment
The combination of metal inserts and molded housing provides stable connectivity in harsh or high-vibration environments.
Company Profile

BMA
Founded in 1997, our factory spans nearly 6,000 ㎡ in Ningbo, very convenient access to Shanghai and Hangzhou. With advanced workshops, modern production lines, ISO 9001 and SMETA certifications, and multiple patents, we ensure strong monthly capacity, reliable quality, high efficiency, and punctual delivery to clients worldwide.

Mold
Workshop

Processing Workshop

Material
Warehouse

Hardware
Workshop

Assembly
Workshop

Laboratory
Injection Molding Workshop Planning
The workshop is planned with distinct operating zones to maximize production efficiency and maintain orderly workflow movement.


Factory Equipment
Our facility houses sophisticated machinery built for accuracy and high-efficiency production.


Packing and Shipping
●Customized Packing
Tailor-made packaging is available, including logos, brand labels, and carton design.
Export shipments are packed in strong cartons or steel-frame packages with shipping marks for safety.
● Shipping
For bulk orders:
We use reliable international logistics partners to ensure efficient and economical transport.
For samples & small orders:
We ship via TNT, FedEx, UPS, or DHL express services.

FAQ
Q1: How to customize a product?
A1: Send us 2D/3D drawings and specifications including material, hardness, color, and quantity. We will provide a quote within 24 hours.
Q2: Will you sign an NDA before receiving data?
A2: Yes, we guarantee full confidentiality and can sign your NDA before data exchange.
Q3: Can I add my own logo?
A3: Yes, OEM/ODM orders with logos are supported.
Q4: Can you make products from my sample?
A4: Yes, production can follow your sample or drawing, and molds are provided free.
Q5: Payment terms?
A5: 30% deposit, balance via T/T against B/L copy.
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