Manufacturing Capabilities
AOSI specializes in precision terminal blocks, modular interface modules, and mounting accessories. With fully automated production lines, strict quality control, and in-house tooling, we ensure stable performance, fast delivery, and flexible OEM/ODM customization for industrial and automation applications.
Product R&D
We design reliable terminal blocks and modules with optimized structure, safety, and easy installation for industrial automation applications.
Plastic Injection
High-precision molding ensures strong, flame-retardant PA66 housings with excellent consistency and durability across all product lines.
Product Assembly
Automated assembly and strict testing guarantee stable conductivity, reliable performance, and consistent quality for every product.
About Us
Dongguan AOSI Electronics Co., Ltd. specializes in terminal blocks, modular interface modules, and mounting accessories for industrial automation.
With advanced production lines and strict quality control, all products undergo 100% testing to ensure stable performance.
Certified by CE, RoHS, and REACH, AOSI exports worldwide, delivering reliable connection and control solutions through OEM & ODM services.
15
Years
ODM/OEM
Experience
150
+
Employees
12000
m2
Plant Area
1 Million
+
Monthly Production
Why Choose Us as Your Industrial Connector Supplier
You are sourcing reliable terminal blocks and industrial modules for your automation projects. By partnering with AOSI, you gain a trusted manufacturer who ensures quality, efficiency, and long-term value.
01. Integrated Manufacturing | Stable Quality | Reliable Delivery
Customer’s Challenge
“When sourcing terminal blocks or industrial modules, lead times are often long. Connectors, wires, and mounting accessories must be purchased separately from different suppliers. Coordination is time-consuming, and delays or mismatched parts often affect production schedules.”
Partner with Us for Seamless Production
One Manufacturing Source:All production steps — from plastic injection and metal processing to assembly and testing — are completed in-house. This ensures consistent quality and faster response.
Streamlined Process:Our integrated production flow reduces coordination time by over 60%, improving efficiency and minimizing delivery risks.
Reliable Delivery:With advanced automation and strict scheduling, we maintain an on-time delivery rate above 99%, ensuring your projects stay on track.
You will get:
Stable quality, shorter lead time, and peace of mind through a unified and reliable manufacturing system.
02. Better Quality From The Start | Fewer Headaches In The End
Customer’s Pain Point
“I often receive terminal blocks or modules with minor defects — loose contacts, color variation, or inconsistent fitting with accessories. It’s hard to trace the cause when different suppliers handle plastic parts, metal components, and assembly separately. Rework and replacements waste time and increase cost.”
Partner with Us for Reliable Quality
Quality Starts at Design:Our R&D and engineering teams work together from the start to ensure optimal structure, material selection, and compatibility across all components.
Control Every Step:From plastic injection and metal stamping to assembly and testing, every stage is monitored in-house, reducing error rates by up to 40%.
Single Responsibility for Quality:One manufacturer manages your entire process, ensuring each connector, module, and terminal meets strict performance standards — no quality disputes between suppliers.
You will get:
More reliable products, fewer reworks, and the confidence that every unit is built to last.
03. Optimize for Total Cost, Not Just Unit Price
Challenges You May Face
“I compared several connector suppliers and chose the lowest price, but delivery delays and inconsistent quality increased my total project cost. Rework, logistics, and after-sales issues made the so-called ‘cheap price’ much more expensive in the end.”
Partner with Us for Smarter Cost Control
Transparent Pricing:We provide clear and consolidated quotes that cover materials, tooling, and assembly — no hidden costs, no unexpected add-ons later.
Value Engineering:By optimizing structure, material usage, and assembly process, we help reduce wiring time and improve efficiency — saving up to 15–20% in total project cost.
One-Stop Supply:Our integrated manufacturing eliminates multiple vendor markups. You get better quality, faster response, and lower overall cost from a single source.
You will get:
Full cost transparency, reduced total ownership cost, and stronger competitiveness in your market.
Check Out Our Manufacturing Process
Submit Your RFQ
Send us your drawing, specifications, or part number. Our engineering team will review and provide you with a prompt quotation.
Confirm Your Order
Our experts will confirm technical details, materials, lead time, and pricing with you to ensure everything fits your project needs.
Production & Delivery
We leverage precision manufacturing and rigorous testing to build your parts. Your finished order is then shipped directly to your facility.
Hot products newsletter
Innovative Ultra-Thin Double-Layer Pluggable Terminal Blocks
Multiple pitch option: 3.5mm/3.81mm/5.0mm/5.08mm/7.62mm
Offers perfectly matched male and female headers
Ultra-Thin & Compact Profile
Stable & Reliable Transmission
Hot products newsletter
Modular Interfaces & High-Performance Terminal Blocks
an innovative combination of D-sub connectors and terminal blocks, this solution offers highly integrated modularity to simplify system design and wiring, ideal for specialized applications.
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DIN Rail RJ45 Terminal Block Module
RJ45 Ethernet Port
Tool-Free Spring Wiring
DIN Rail Compatible
Modular and Expandable Design
Industrial-Grade Durability
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Push-in Pluggable Dual-Row Terminal Blocks
Innovative push-in design allows for quick wire insertion and secure termination without the need for screws, significantly boosting installation efficiency.
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PCB Plug-in Terminal Blocks
PCB Direct Plug-in Soldering
Modular Interlocking Design
Internationally Certified like UL, VDE, RoHS and so on
Direct from Manufacturer with Abundant Stock
Application Scenarios & Solutions
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