Custom Investment Casting for Complex, Application-Driven Parts
From design review to production-ready castings — engineered to reduce manufacturing risk, not just meet drawings.
Design-for-Casting support before quoting
Casting + CNC finishing in one integrated flow
Controlled process, predictable results
Investment Casting Capabilities
| Casting Process | Investment casting (lost wax, silica sol) |
| Common Materials | Carbon Steel, Stainless Steel, Alloy Steel, Super Alloy, Aluminum Alloy |
| Maximum Casting Weight | 0.01kg – 100 kg |
| Maximum Size | 800mm x 600mm x 500mm |
| Minimal Wall Thickness | 1.5mm – 2.5mm (Depends on part geometry and material) |
| Dimensional Tolerance (as cast) | Typically CT6–CT7 |
| Surface Roughness | Ra 3.2 μm – 6.3 μm |
| Heat Treatment | Normalizing, Annealing, Quenching, Tempering, Solution |
| CNC Finishing | 4-axis & 5-axis CNC machining(±0.01mm) |
| Inspection | Dimensional inspection and material verification as required |
Selected Case Types
We focus on applications where geometry complexity and functional requirements make process control critical.
Impellers & Pump Bodies
Complex internal passages and curved vanes in stainless steel or duplex alloys. Post-machined to hydraulic tolerance.
Valve Bodies & Flow Control
Pressure-rated investment castings with precise seat geometry and integral mounting bosses. Zero porosity required.
Automotive & Powertrain
Safety-critical parts in heat-resistant steels and aluminium alloys. Casting + CNC + surface treatment in one flow.
Aerospace & Energy Components
Nickel superalloys and cobalt alloys for high-temperature applications. Full traceability and material certification.
Materials We Cast
Commonly specified materials for investment casting, selected based on application requirements.
| 🔷 Stainless Steels: e.g., CF8/304, CF8M/316, CF3/304L, CF3M/316L |
| 🔷 Alloy Steels: e.g., WC1, WC6, WC9 |
| 🔷 Carbon Steels: e.g., WCB, WCC, WCA |
| 🔷 Superalloys: e.g., IN625, IN718, K18 |
Surface Finishing Options
Functional and cosmetic finishes selected based on service environment and usage conditions.
| 🔷 Shot Blasting | 🔷 Polishing |
| 🔷 Black Oxide | 🔷 Powder Coating |
| 🔷 Electrical Plating | 🔷 Hot-dip Galvanizing |
Beyond standard material and finishing options, we support advanced alloy systems, material analysis, heat treatment, and performance validation through specialized investment casting processes.
Quality & Process Control
Quality is built into each production stage, not inspected in at the end.
Dimensional foundation control
Wax pattern accuracy and shell thickness are controlled to establish a stable dimensional baseline before metal pouring.
Material integrity control
Melting temperature, alloy composition, and pouring conditions are controlled to ensure correct material properties and internal quality.
Structural and mechanical performance control
Post-casting processes are managed to protect structural features and achieve required mechanical properties.
Structural and mechanical performance control
Post-casting processes are managed to protect structural features and achieve required mechanical properties.
Functional requirement verification
Inspection methods are defined based on drawing requirements and functional priorities, not generic checklists.
Application-specific protection
Surface treatments are applied based on environmental exposure and usage conditions.
Certifications & Compliance
ISO certifications and quality systems supporting OEM manufacturing requirements.
How We Reduce Risk in Investment Casting Projects
As a precision casting foundry with extensive project experience, HDC helps reduce risks and bring castings perfect align with your project needs.
We identify high-risk features early and provide manufacturability feedback before tooling.
Gating design, material selection, and process parameters are defined for stability, not just feasibility.
Instead of over-machining, we machine only where function and tolerance demand it.
We provide samples and pilot runs ensure consistency before scaling to production.
Engineering-Friendly Project Flow
From drawing review to mass production, each step is aligned to reduce risk and avoid surprises.
- RFQ & Drawing Review: Requirement clarification before quotation
- Design Feedback & Quotation: Engineering input and transparent cost breakdown
- Tooling & Sample Approval: Validation before committing to batch production
- Pilot Run: Process stability verification
- Mass Production: Repeatable quality and delivery
Investment Casting Projects
A few examples showing how we support engineering-driven casting projects.
What Our Clients Say
Get Engineering Feedback Before Quoting
Share your drawing or application details. We’ll review manufacturability before discussing pricing.
FAQs
What is the minimum order quantity (MOQ)?
Our MOQ depends on the material and casting size. Typically, we handle B2B orders starting from 50–500 pieces per design.
Because creating the wax pattern mold is required, a very low MOQ may result in a significantly higher unit price.
Do you provide heat treatment and surface finishing?
Yes. We offer heat treatment, CNC machining, sand blasting, bead blasting, polishing, powder coating, anodizing, and painting. Custom finishes are also available.
Can you assist with design or prototyping?
Absolutely. Our engineers can review your CAD designs, provide casting feasibility advice, and support prototyping before mass production.
Do you export internationally?
Yes. We ship worldwide and have experience handling customs and logistics for overseas B2B clients.
Request Quote Today
Share your project details and receive a tailored investment casting quote within 24 hours — fast, simple, and no obligation.
