Precision Sinker EDM
Service
Custom Sinker EDM machining for mold cavities, core inserts, deep ribs, sharp internal corners, and precision tooling components.
Best Fit For
// Overview
Sinker EDM Machining for Complex Mold & Tooling Components
Feiyu provides precision Sinker EDM machining for mold cavities, core inserts, hardened tool steel components, deep ribs, sharp internal corners, blind cavities, and fine surface details. This process is especially valuable when conventional CNC machining is limited by tool access, cutter radius, or material hardness. For mold engineers and tooling buyers, Sinker EDM helps create accurate internal forms, narrow slots, complex cavity features, and stable details in hardened materials. Our team supports drawing review, electrode planning, process coordination, and inspection so OEM customers can move from tooling design to production with clear manufacturing control.
// Capability Data
Our Sinker EDM Capabilities
| Process | Sinker EDM / Die Sinking EDM |
|---|---|
| Applications | Mold Cavities, Core Inserts, Deep Ribs, Tooling Components |
| Materials | H13, SKD11, S136, Tool Steel, Carbide, Hardened Steel |
| Tolerance | Project dependent |
| Surface Finish | Project dependent |
| Production Type | Prototype, Small Batch, Production Runs |
| Drawing Format | STEP, STP, DXF, DWG, PDF |
// Components
Typical Sinker EDM Parts We Manufacture
These component types are common in injection molds, die casting tools, connector molds, and precision tooling programs.
Mold Core Inserts
Sinker EDM supports precise internal features on core inserts where CNC cutter access is limited.
Mold Cavities
Complex cavity profiles, fine details, and blind areas can be machined using shaped electrodes.
Deep Rib Features
Deep ribs and narrow slot features can be produced without forcing long, fragile cutting tools.
Connector Mold Components
Fine connector mold details and tight internal geometry can be supported for precision molding projects.
Die Casting Mold Inserts
Hardened die casting inserts can be machined for cooling, cavity, and detailed tooling features.
Precision Tooling Components
Custom tooling plates, inserts, and precision components can be processed to drawing requirements.
// Materials
Materials We Process
Sinker EDM is especially suitable for hardened materials and complex tooling components where CNC machining may be limited by tool access, cutter radius, or material hardness.
// Engineering Support
Engineering Support for Sinker EDM Projects
Mold Design Review
Mold drawings, cavity details, ribs, and critical tooling features are reviewed before production.
Electrode Design Optimization
Electrode planning helps control feature accuracy, surface finish, and processing efficiency.
DFM Analysis
We review which features need Sinker EDM and which can be combined with CNC machining or grinding.
Prototype Tooling Support
Prototype tooling and small-batch EDM work can be supported before production tooling release.
Image Placeholder
Suggested image: Chinese mechanical engineer reviewing mold CAD model on dual monitors, realistic OEM manufacturing office beside workshop.
// Quality Control
Quality Control & Inspection
Sinker EDM tooling components can be inspected according to drawings, electrode requirements, critical cavity dimensions, and customer quality standards.
Image Placeholder
Suggested image: quality engineer inspecting precision mold insert with digital caliper or CMM in a real OEM factory environment.
// Industries
Industries We Serve
// One-Stop Support
Complete Tooling Manufacturing Support
Feiyu can combine Sinker EDM with CNC machining, heat treatment, grinding, surface finishing, and inspection to support complete tooling manufacturing projects from design review to final tool assembly.
// Why Feiyu
Why Choose Feiyu for Sinker EDM
// FAQ
Sinker EDM FAQ
Common questions from OEM buyers, mold engineers, and tooling purchasers before sending Sinker EDM drawings.
Quote Tip
Send 2D drawings, 3D models, material grade, electrode requirements, tolerance notes, and inspection standards.
What is Sinker EDM used for?+
Sinker EDM is used for mold cavities, core inserts, blind cavities, deep ribs, sharp internal corners, and complex tooling features that are difficult to machine with conventional cutters.
Can you machine hardened tool steel?+
Yes. Sinker EDM is suitable for hardened tool steels and tooling materials when material hardness or geometry limits standard CNC machining.
Can Sinker EDM make sharp internal corners?+
Yes. Sinker EDM can create sharp internal corners and fine details using shaped electrodes designed for the required feature geometry.
Do you provide electrode design support?+
Yes. Our engineering team can review electrode requirements and provide suggestions for manufacturability, accuracy, and process efficiency.
Can you combine Sinker EDM with CNC machining?+
Yes. Feiyu can coordinate CNC machining, heat treatment, Sinker EDM, grinding, inspection, and tool assembly as one manufacturing route.
Do you provide inspection reports?+
Inspection reports can be provided according to drawing requirements, purchase order notes, and customer quality documentation needs.
// Start Your Project
Need Precision Sinker EDM Parts?
Send us your drawings and project requirements. Our engineering team will review your design and provide manufacturing suggestions and quotation support.