This page is for overseas buyers, R&D and quality engineers who need a single engineering view of how Suzhou Dongying Electronic Technology Co., Ltd. describes moving from part drawings to tooling, molded components and insert-molded interfaces. It only restates capabilities already published on dymolds.com. It does not claim plant capacity, certifications, lead times or performance guarantees.
This page is not a whole-machine or turnkey-assembly brand. Existing site language focuses on tooling, molded parts, inserts and project-specific supply responsibilities. Gears, purchased parts, assembly and plating are agreed separately for each project—not bundled as finished-goods turnkey assembly.
Start a brief: Contact · suzhoudongying@gmail.com
Shared path: mold → molding → verification
Across the site, the same sequence appears:
| Step | What the site asks you to define | Primary pages |
|---|---|---|
| 1. Part definition | Drawing revision, 3D, critical features, material, quantities | Drawings & revisions, Contact |
| 2. Tooling | Mold for part supply and/or delivery to another site; machine interfaces if the mold leaves Dongying | Precision molds, Tooling & supply scope |
| 3. Injection molding | Geometry, resin, cosmetics, sample acceptance | Manufacturing — injection |
| 4. Insert molding / overmolding | Insert drawing, position, supply ownership, checks; metal processing / plating / assembly called out as separate responsibilities | Manufacturing — inserts, Insert molding inputs |
| 5. Inspection & approval | Characteristics, methods, records tied to revision | Quality, Inspection & approval |
Homepage wording: “Define the scope for tooling, molded parts and inserts before the project moves forward.”
Four production lines (hubs on this site)
1) Server / electronics cooling plastics
Hub / entry points
- Category on gallery: Cooling components & systems
- Family: Micro cooling impeller, Cooling bases and supports
- Components: Server cooling impellers, Cooling fan frames & housings
- Engineering notes: Impeller injection molding, Server fan frame mold
- Liquid cooling (evaluate only): AI liquid-cooling plastic parts, Cold-plate fluid connectors
- Category landing: AI server cooling plastic parts
What the site states we discuss: blade/hub or frame/base geometry, materials, inserts (e.g. bearing tubes), tooling, molding and validation ownership. Liquid-cooling projects are framed as drawing review / evaluation, not as proven loop qualification by Dongying. Gallery tiles for valves or locking clips are not treated as a production series on this page.
2) Gearboxes and gear sets
Hub pages
- Plastic gear components
- Gearbox components
- Gallery: Gears, gear sets & gearboxes
- Articles: Plastic gears / gear sets / gearboxes — drawing fit, POM vs PA for plastic worm gears
What the site states: gear projects start from tooth geometry and mating parts; gearbox projects review housing and gear interfaces and agree separately who supplies gears, purchased elements and assembly. Tooling and acceptance follow the specified design.
3) Busbar connectors (insert-molded insulation)
Hub page
- Busbar insert molding and insulation components
- Gallery: Busbar components
- Guides / articles: Insert molding inputs, Busbar insert-molding RFQ inputs, Busbar overmolding material selection
What the site states: review insulation geometry with conductor interfaces; define molding, conductor processing and electrical validation as separate project responsibilities. Metal conductor stamping, if part of a package, “can be assessed separately and is not assumed” (material-selection article).
4) Bearing cages
Hub page
- Bearing cage components
- Gallery: Bearing cages
- Material & structure notes: Choosing materials and structure for plastic bearing cages
What the site states: a cage review brings pocket geometry, retaining features and mating elements together; provide cage design and operating conditions to define material, tooling, fit and validation. Linked types include deep-groove ball, needle roller, thrust, slewing segments/separators, axial-bar cages, wheel-hub designs, PPS tubular design and rail-transit examples.
Insert molding / overmolding in volume programs
Use when metal and plastic must be defined together (busbars, frames with tubes, gears with inserts, motor insulation, etc.):
- Provide plastic definition and insert drawing, material and surface condition; say who supplies the insert (insert molding inputs).
- Show locating features and assembly interfaces; explain retention, sealing or electrical needs that need evaluation.
- Agree how position, appearance and function will be checked.
- Keep plating, stamping and final assembly ownership explicit in the supply scope—agreed separately, not assumed as turnkey assembly.
What to send for a volume-oriented discussion
From contact and the resource guides:
- 2D drawing and 3D model with revision
- Material grade and critical dimensions (as your drawing requirements)
- Sample quantity and expected production volume
- Application, validation and delivery requirements
- Whether you need tooling, molded parts, inserts, or a defined mix
- For inserts: supply responsibility and positioning scheme
We do not claim standard T1 days, annual capacity or certified quality-system numbers on this page—those are absent from the public site and must not be invented.