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Precision investment casting services

Delivering tight tolerances, stable quality, and near-net-shape components for demanding industrial applications.
  • One-Stop Casting and Machining
  • Reliable for Industrial Applications
  • Tight Tolerances and Stable Quality
  • Complex Geometries Made Easy
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99.6%

Inspection Pass Rate

26

Years of Experience

ISO

ISO 9001:2015 Certified

100%

In-House Control

Professional investment casting services 

We operate a precision casting facility that meets complex processes and delivers consistent quality. We use investment casting to turn high-performance alloys into precision near-net-shape components for demanding applications.
  • Precision Casting for Complex Geometries
  • Tight Tolerances & Consistent Quality
  • Certified to ISO 9001, ASTM, ASME, DIN Standards

Our lost wax casting Capabilities

From high-pressure valves and fittings to critical equipment components. We use rigorous internal quality control and secondary inspections to ensure your parts meet specifications, whether you need rapid prototyping or high-volume production.

Part Weight Capacity: 0.05 kg to 100 kg per single piece.

General Tolerances: ISO 8062 CT5 - CT7 (Linear accuracy: ±0.1 mm per 10 mm).

Minimum Wall Thickness: Down to 1.5 mm.

Core Material Options : Stainless Steel (304/316), Carbon Steel, and Alloy Steel.

Why FERR ?

We utilize fully automated, temperature-controlled wax-injection equipment and jewelry-grade mold materials with extremely low shrinkage. This ensures that the three-dimensional shrinkage of each wax pattern is consistently stabilized during cooling and setting.

  • The entire process utilizes a zirconia-based surface layer bonded with high-quality silica sol. Multi-layer coating is performed in a dust-free workshop maintained at constant temperature and humidity, creating a hard ceramic shell that remains intact even at high temperatures.
  • Combining high-frequency induction melting with rigorous on-site direct-reading spectrometer analysis and a high-temperature shell sintering process ensures that molten metal instantly fills even the finest details of the mold cavity.

Our investment casting workflow emphasizes precision, repeatability, and cost-effective production.

Proactive DFM & Precision Tooling

Before any tooling begins, our engineers conduct a rigorous DFM review. We optimize draft angles, wall thicknesses, and gating systems to eliminate potential risks of shrinkage or porosity early. This proactive approach guarantees a stable, high-yield production run from day one.

Strictly Controlled Casting Process

We leave nothing to chance. From slurry consistency to precise shell preheating and molten metal temperatures, every variable is strictly monitored. This controlled environment ensures superior metallurgical integrity and a flawless surface finish for your most critical components.

Near-Net Shape & In-House Machining

Our casting process achieves near-net shapes that drastically reduce the need for rough machining. For tight-tolerance requirements, our integrated in-house CNC machining capabilities deliver fully finished, assembly-ready parts, saving you the hassle of managing multiple vendors.

  • High precision machining
  • Polished zinc plating, nickel plating, electroplating, chrome plating
  • Anodizing, phosphating, acid treatment, polishing
  • Broaching, milling, drilling, tapping
  • Surface grinding, sand blasting, powder coating
  • Heat treatment

Secondary Operations and Treatment of Lost Wax Casting We Offer

Lost Wax Casting Product Showcase

Our  investment casting parts Are Engineered to Meet the Demanding Requirements of Applications Worldwide. to discuss your project requirements. Get in touch to discuss your project

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Choosing the right casting process directly affects strength, dimensional accuracy, surface finish, and long-term performance. Our investment casting services combine precise wax tooling, stable ceramic shell control, and strict inspection standards to deliver production-ready metal components for demanding applications.

Investment Casting (Lost-Wax Casting)

Best suited for low- to medium-volume production of complex metal parts requiring tight tolerances, excellent surface finish, and intricate details and commonly used for valve & pump components, impellers, brackets, housings, medical parts, and precision industrial hardware. Investment casting is ideal when you want near-net-shape parts to reduce machining time and material waste.

Capability

Description

Material Options

Stainless steel (304/316/17-4PH), carbon & alloy steel, aluminum alloys, bronze/brass, heat-resistant alloys (e.g., Inconel)

Minimum Wall Thickness

Typically 1.0–4.0 mm depending on geometry and alloy (thinner sections possible with design support)

Maximum Casting Size

Varies by design; send your drawing for feasibility review and tooling recommendation

Weight Range

From small precision parts to larger structural castings (project-dependent)

Surface Finish

As-cast + optional shot blasting / polishing / passivation / electropolish (based on material & appearance requirement)

Manufacturing Features

Complex geometry • fine details • thin-wall sections • internal passages • near-net shape to reduce machining

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Post-Machining & Surface Processing

To achieve functional surfaces such as sealing faces, threads, bearing seats, and tight GD&T requirements, investment cast parts often need secondary operations. We provide in-house machining and finishing to bring each casting to its final specification.

Capability

Description

Machining Operations

CNC milling/turning, drilling, tapping, reaming, grinding, sealing-face lapping (as required)

Tolerance (After Machining)

Feature-based control depending on geometry and datum scheme; tolerances confirmed during DFM review

Defect / Quality Control

Process control for shrinkage & misruns • shell quality control • gating/feeding optimization • optional NDT per requirement

Inspection Capabilities

CMM, gauges, surface roughness check, hardness testing, chemical composition verification (material cert support)

Surface Treatments

Heat treatment (as required), passivation, electropolish, plating, powder coating, painting, shot blasting

Production Support

DFM feedback • wax tooling & cluster design • process documentation • FAI / PPAP support when needed

Let’s talk about your next project !
Whether you have detailed drawings or just a concept, we’re ready to listen.
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STEP  STP  SLDPRT  IPT  PRT  SAT  IGES  IGS  CATPART  X_T  OBJ  STL files

  • All uploads are secure and confidential.

What is Investment Casting?

Investment Casting (also known as lost-wax casting) is a precision manufacturing process capable of producing complex metal parts with an exceptional as-cast surface finish. It enables near-net-shape production—including thin walls, complex internal passages, and fine details. The process begins by injecting wax into precision molds to create a model of the final part. These wax models are assembled onto a central pouring system (known as a wax “tree”) and repeatedly dipped into a specially formulated ceramic slurry. This process is carefully repeated until a thick, durable ceramic shell forms around the wax models.

Once the ceramic shell has fully cured, the wax patterns are melted away, leaving a perfectly shaped hollow cavity. Molten metal is then poured into this shell under strictly controlled thermal conditions to prevent internal porosity. After the metal solidifies, the ceramic shell is broken open (demolding), revealing a high-precision, structurally sound metal component ready for final inspection.

Compared to processes such as sand casting, it is more time-consuming and costly; therefore, it offers the best value for money when producing parts with complex geometries.

  • Strict Tolerance Requirements: You need tight tolerances and precise near-net shapes right out of the mold, drastically reducing or eliminating expensive secondary CNC machining.
  • Complex Internal Geometries: Your design features blind holes, undercuts, or intricate internal channels that are impossible or too costly to machine from solid block materials.
  • Hard-to-Machine Alloys: You are using tough materials like stainless steel, tool steel, or high-temperature alloys that would rapidly wear down machining tools.
  • Superior As-Cast Surface Finish: You require a smooth, aesthetic finish straight from the foundry, saving time and budget on extensive surface polishing.
  • Thin-Wall & Weight Reduction: You need high structural strength but require thinner walls than sand casting can reliably produce.

Investment Casting FAQ

Investment casting is the ultimate solution for reducing total manufacturing costs on complex parts. It provides near-net shapes with exceptional surface finishes (Ra 3.2-6.3 μm) and tight tolerances, which drastically reduces or eliminates the need for costly secondary CNC machining. It’s especially cost-effective for hard-to-machine alloys like stainless steel.

We specialize in a wide range of ferrous alloys, with a strong focus on Stainless Steel (e.g., 304, 316, 17-4PH), Carbon Steel, and Alloy Steels. Beyond just pouring metal, we provide full material traceability and chemical composition certifications (verified by our in-house spectrometers) for every single batch to ensure strict compliance with your industry standards.

Our standard investment casting tolerances fall within the ISO 8062 CT5 to CT7 range. However, precision is not just about standards; it’s about execution. Our engineering team performs rigorous DFM analysis on your drawings to optimize shrinkage rates, and we verify all critical dimensions with advanced CMM equipment to ensure batch-to-batch repeatability.

While investment casting requires upfront tooling (molds), it becomes highly economical for medium- to high-volume production due to minimal per-part labor and material waste. For low-volume validation, our engineers can assist you in evaluating whether CNC machining might be a faster, tooling-free alternative before you scale up to mass production.

Service Process

1

Provide 3d drawings

Send us your initial concept or idea, and our expert team will craft precise 3D drawings to bring your vision to life. 

2

Evaluate the quotation

Once we receive your drawings, we will evaluate the specifications and provide you with a competitive

3

Manufacturing

Upon approval, we begin the manufacturing process using advanced techniques and high-quality materials

4

Order delivery

Once your product is ready, we’ll coordinate a timely delivery that suits your schedule

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  • Get 3-day standard lead times on simple parts between 10 mm x 10 mm and 200 mm x 200 mm. Upload your part to see if it’s eligible.

Ready to Start Your Custom Manufacturing Project?

Upload your technical drawings (STEP, IGES, PDF) for an Engineering Pre-audit. We will provide actionable DFM insights and a transparent cost structure within 24 hours.

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  • All production files are secure and confidential.