

Precision Engineering for Global Brands
We optimize your bill of materials, execute custom tooling, and manage high-speed SMT assembly under rigorous tolerance thresholds.
High-Capacity SMT & Tooling
From single prototypes to high-volume production runs, our facility is optimized for speed, yield, and absolute consistency.
Custom Tooling
SMT Assembly
DFM Optimization
In-house steel mold fabrication and high-precision plastic injection molding with ultra-tight tolerance thresholds.
High-speed surface mount technology lines equipped with automated optical inspection for zero-defect yield.
Design for manufacturing analysis to streamline your bill of materials and maximize production efficiency.
Our Four-Stage Manufacturing Process
DFM & CAD Review
Prototyping & Testing
Custom Tooling
Mass Production
We analyze your schematics and optimize the bill of materials to eliminate assembly bottlenecks before tooling begins.
Rapid functional prototyping combined with rigorous thermal, drop, and RF testing to validate performance.
Precision steel mold fabrication and test runs to guarantee perfect enclosure fit and cosmetic finish.
High-speed automated assembly, 100% functional testing, and secure global logistics from our Hong Kong hub.
Zero-Tolerance Quality Control
100%
Functional testing
0.02%
Tolerance threshold
AQL 1.0
Inspection standard
Ready to Scale Your Hardware?
Upload your CAD files or bill of materials for a secure, confidential DFM review within 24 hours.
Topco Limited
Hong Kong Engineering. Mass-Production Ready.
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sales@topcolimited.com
Unit 1104, Crawford House, 70 Queen's Road Central, Hong Kong
MOQ & Custom Tooling Inquiries: 24-Hour Response
© 2020 Topco Limited
ESTABLISHED 2020 • HONG KONG ENGINEERING
