Investment Casting Services

Investment Casting Services in US

Redstone Manufacturing delivers high-precision investment casting services for clients seeking complex geometries, excellent surface quality, and exceptional dimensional accuracy. Our ISO-certified foundries supports projects of all sizes, from small intricate parts to medium-volume industrial components. Whether you need stainless steel, aluminum, carbon steel, or specialty alloy castings, our investment casting service provides consistency, repeatability, and long-term performance across every industry.

The Investment Casting Process

Investment casting, also known as lost-wax casting, is a manufacturing process that allows the creation of highly detailed metal components. The process begins with producing a wax pattern identical to the final part. These wax patterns are assembled on a tree, coated with ceramic slurry, and repeatedly dipped to build a strong ceramic shell. After curing, the wax is melted out, and molten metal is poured into the hollow ceramic mold. Once the metal solidifies, the shell is broken away to reveal the cast component.

This process enables extremely tight tolerances, smooth surfaces, and complex internal or external features that are difficult or impossible to achieve using other casting methods. Redstone’s investment casting services follow strict temperature control, advanced shell-building techniques, and precision pouring to guarantee consistent, high-quality results.

Why Choose Redstone Manufacturing

Redstone Manufacturing stands out as a premium provider of investment casting services due to our unique combination of engineering expertise, production capabilities, and strict quality control.

• Broad Material Capabilities: Stainless steel, steel, aluminum, nickel alloys, cobalt alloys, brass, bronze, and custom materials
• Advanced Engineering Support: Our team optimizes part geometry, gating systems, tolerances, and alloy selection
• Precision Tooling: High-quality wax injection dies designed with CNC machining and 3D modeling
• Foundry: Multiple international locations ensure consistent supply, competitive pricing, and flexible capacity
• Fast Prototyping: 3D-printed wax patterns enable rapid prototype development without tooling
• Rigorous Quality Control: Dimensional inspection, X-ray, magnetic particle testing, chemical analysis, and hardness testing

By choosing Redstone, you gain a reliable partner capable of delivering complex, high-tolerance parts with outstanding repeatability.

How to Order Investment Casting Services

We make it easy to partner with Redstone for your investment casting service needs.

1. Send Your Design: Provide your 3D model or technical drawing for engineering review
2. Receive a Detailed Quotation: We outline tooling costs, material options, and lead times
3. Wax Pattern and Tooling Production: Patterns are produced using injection tooling or 3D printers
4. Ceramic Shell Building and Metal Pouring: The mold is created, cured, and filled with molten metal
5. Cutting, Finishing, and Machining: Parts are removed from the tree, cleaned, machined, or heat-treated as needed
6. Inspection and Delivery: Final inspection ensures compliance with specifications before shipment

This structured workflow guarantees transparency, predictable lead times, and consistent part quality.

Investment Casting Subtypes

Redstone offers various investment casting service options to suit different technical requirements.

Traditional Wax Injection Investment Casting

Wax patterns are created using precision injection dies, ideal for long-term production and consistent repeatability.

3D-Printed Wax Pattern Investment Casting

Patterns are printed using additive manufacturing, enabling complex shapes, rapid prototyping, and low-volume production without tooling.

Vacuum Investment Casting

Used for high-performance alloys that require controlled atmospheres to prevent contamination or oxidation.

Rapid Investment Casting

Accelerated production cycles for time-sensitive projects, combining fast pattern production with streamlined shell-building techniques.

Our team helps you select the most suitable method based on your material, geometry, and production volume.

Product Finishes

Investment cast parts can undergo a wide range of finishing operations depending on mechanical, cosmetic, or functional requirements.

• As-Cast Finish
• Machining for Tight Tolerances
• Shot Blasting or Sand Blasting
• Polishing or Mirror Finishing
• Heat Treatment (solution treatment, aging, hardening)
• Powder Coating
• Painting
• Anodizing for Aluminum Components
• Electroplating (nickel, chrome, zinc)

These finishing options enhance corrosion resistance, appearance, and mechanical performance.

Applications and Industries

Investment casting is widely used to produce precise, durable components across multiple industries.

• Aerospace: turbine blades, structural components, aerospace fittings
• Automotive: gears, brackets, housings, engine components
• Medical: surgical tools, implant components, precision instruments
• Defense: weapon components, military-grade hardware
• Industrial Machinery: pump parts, valves, impellers, connectors
• Energy: turbine parts, power generation hardware

Redstone provides highly reliable, repeatable castings for critical applications where precision and strength matter most.

Advantages of Investment Casting

Using investment casting services offers numerous benefits.

• Excellent dimensional accuracy and tight tolerances
• Smooth, high-quality surface finish
• Ability to achieve extremely complex geometries
• Reduced machining requirements
• Supports thin walls and intricate internal features
• Works with a wide range of metals and high-performance alloys
• Ideal for medium-volume production and parts requiring exceptional detail

Redstone’s advanced processes and engineering expertise ensure optimal results, whether you need intricate prototypes or high-precision production runs.