Quick Facts
Company: Dongguan Donghong Automation Technology Co., Ltd.
Core Offering: Turnkey automated production solutions for chip inductors
Equipment: Winding, dispensing, soldering, testing & packaging, assembly
Inductor Types: CD, NR, common mode, high-frequency ceramic, molded, shielded
Patents: 13 invention patents, 41 utility models, 9 software copyrights
Employees: 124 (22 in R&D)
Factory: Approx. 5,500 m²
Market: Southeast Asia
hy a Dedicated Maker Beats a General Automation Supplier
There are two kinds of automation equipment companies. The generalist builds machines for many industries and assembles solutions from generic modules. The specialist, like Donghong, focuses on one center: chip inductor automation. As an inductor winding machine manufacturer, Donghong covers CD, NR, high-frequency and molded series. It also builds a closed process loop: winding, soldering, dispensing, assembly, inspection, testing and packaging.
Where the Invention Patents Actually Land
Patents matter only when they solve production problems. Donghong's patents land on specific inductor processes.
Common Mode Chokes
Common mode chokes need dual windings and high symmetry. Winding consistency affects common mode rejection. Donghong's automatic winding machine turns operator feel into machine parameters: turns, tension and pitch are programmable and repeatable. This is common mode choke equipment built for consistency.
NR Series Inductors
NR series demand tight winding density and terminal forming, with frequent part number changes. Donghong's patents focus on fast changeover and parametric recipes. Switching a part number becomes a recipe recall, not half an hour of manual adjustment.
Process Integration
The 2025 patent for a combined winding and soldering machine integrates two steps into one unit. It is cross-category: CD, NR, common mode and molded inductor production lines can use it. Fewer machines mean fewer handoffs, less repositioning error and better cycle time.
Molded Inductors
Molded inductors grow fast, but precision transfer across chained steps is difficult. A small early deviation gets amplified. Donghong's patents focus on precision compensation and in-line inspection linkage.
One Thread: Manipulator Operation
The entire line uses robotic arm operation. This is not for show. It removes human variability—fatigue, inconsistent feel, off days. That gives product consistency a physical foundation.
Three Things That Support the Technology
AI visual inspection and MES integration: every unit has traceable data.
R&D and delivery: 22 of 124 employees work in R&D; 5,500 m² factory; RMB 10.82 million registered capital.
Credentials: National High-Tech Enterprise, Guangdong Specialized & Innovative SME, Municipal Engineering Technology Research Center.
One Requirement, One SMD Inductor Turnkey Solution
Customers bring one requirement. Donghong handles design, production and delivery. As a source factory, it avoids information decay through subcontracting. It iterates quickly for consumer electronics, power management, communication and automotive electronics. It offers 24/7 response, because downtime is measured in cost per hour.
Get a Turnkey Line for Your Inductor Production
Whether you run CD, NR, common mode, high-frequency ceramic, molded or shielded inductors, Donghong can configure a complete line and customize parameters, AI visual inspection and MES connection. Tell us your product type and output target. We will return a line configuration and selection recommendation.
About Dongguan Donghong Automation Technology Co., Ltd.
Donghong is a dedicated chip inductor automation equipment maker serving Southeast Asia. It provides SMD inductor turnkey solutions covering winding, dispensing, soldering, testing & packaging and assembly. 13 invention patents, 41 utility models, 9 software copyrights. 15 years of mold experience.
Contact us for chip inductor automation equipment and a customized selection recommendation.