Premium Precision Casting Components & Investment Castings

Product Overview & Core Value

In modern industrial manufacturing, high precision, complex geometries, and superior surface quality are critical to elevating your product's competitiveness. Our Precision Casting Castings (Investment Castings / Lost Wax Castings) are engineered to meet the most demanding operational environments.

By utilizing advanced Silica Sol and composite casting processes, we achieve Near-Net Shape production. This significantly minimizes or eliminates subsequent machining, shortens lead times, and reduces material waste, delivering maximum cost-efficiency to your supply chain.

Why Partner With Us?

• Minimized Total Cost of Ownership: Exceptional dimensional control reduces secondary machining and raw material waste.

• Unmatched Design Freedom: Easily manufacture complex internal cavities, thin-walled structures, and streamlined contours that traditional machining cannot achieve.

• Superior Surface Finish: Surface roughness reaches Ra 1.6 - Ra 6.3 μm, drastically reducing the need for extensive post-treatment.

Technical Capabilities & Specifications

To help your engineering team evaluate compatibility, here are our core investment casting technical indicators:

Extensive Material Selection

We support a wide array of international standard and customized metal alloys to ensure your components withstand wear, corrosion, high temperatures, or extreme mechanical stress:

• Stainless Steel: 304, 304L, 316, 316L, 17-4 PH, 410, 430 (Ideal for food processing, medical, and marine applications).

• Carbon Steel: WCB, WCC, 1020, 1045 (The premier choice for cost-effective structural components).

• Alloy Steel: 4140, 8620, Cr-Mo Alloys (Delivers excellent toughness, hardenability, and wear resistance).

• Superalloys & Heat-Resistant Steel: Cobalt-based alloys, Nickel-based alloys, 310S (Engineered for extreme high-temperature and corrosive environments).

• Duplex Stainless Steel: 2205, 2507, Super Duplex (Outstanding resistance to pitting and chloride stress corrosion cracking).

Target Markets & Industrial Applications

Our high-precision castings are widely trusted across global industries, including:

• Pump & Valve Industry: Valve bodies, valve discs, pump impellers, guide vanes, fluid separators, and bonnets.

• Automotive & Rail Transit: Turbocharger components, control arms, engine brackets, railway fasteners, and heavy truck accessories.

• Oil & Gas Exploration: Drill bit accessories, blowout preventer (BOP) components, logging tool housings, and high-pressure pipe connectors.

• Food & Medical Machinery: Blender impellers, filling machine components, surgical instrument handles, and prosthetic joint matrices.

• Marine & Aerospace: Marine hardware, anchor chain shackles, airborne sensor brackets, and high-strength fasteners.

One-Stop Value-Added Services

To deliver completely ready-to-assemble components, we provide full-service, end-to-end manufacturing solutions:

1. Precision CNC Machining

Equipped with advanced 4-axis and 5-axis CNC machining centers, CNC lathes, precision milling machines, and grinders, we easily meet tight tolerances up to ±0.01mm for critical dimensions.

2. Custom Heat Treatment

To optimize the metallographic structure and mechanical properties of the castings, we offer Normalizing, Annealing, Quenching & Tempering (Q&T), Solution Treatment, Age Hardening, Carburizing, and Nitriding.

3. Surface Finishing & Protection

• Mechanical Treatment: Sandblasting, shot blasting, manual polishing, mirror polishing, vibratory finishing.

• Chemical/Electrochemical Treatment: Pickling & Passivation, Electropolishing, Anodizing, Black Oxide.

• Coating Solutions: Electrophoretic Deposition (ED Coating), Powder Coating, Zinc Plating, Chrome Plating, and Dacromet coating.

Strict Quality Assurance & Inspection

We understand that every individual casting impacts the operational safety of your equipment. We enforce a rigorous quality control workflow and provide EN 10204 3.1 Material Certificates for every batch:

• Chemical Composition Analysis: OES Spectrometer testing for pre-heat and post-casting verification.

• Mechanical Property Testing: Tensile strength tests, impact tests (ambient and low-temperature), and hardness testing (Brinell, Rockwell, Vickers).

• Non-Destructive Testing (NDT):

• X-Ray Radiographic Testing (RT): Detects internal gas pores, shrinkage, and voids.

• Magnetic Particle (MPI) & Liquid Penetrant Inspection (LPI): Locates surface and near-surface micro-cracks.

• Ultrasonic Testing (UT): Evaluates internal structural density.

• Dimensional Metrology: Coordinate Measuring Machines (CMM), 2.5D vision measurement systems, and customized Go/No-Go gauges.

Our Workflow: OEM/ODM Partnership

1. RFQ & DFM Review: Send us your 3D engineering drawings (STEP/IGS/X_T format) or physical samples. Our engineering team conducts a thorough Design for Manufacturability (DFM) review and provides a competitive quote.

2. Tooling Design & Prototyping: We utilize advanced CAE casting simulation software to design optimal gating systems, delivering your initial First Article Inspection Report (FAIR) samples within 15–25 days.

3. Sample Approval & Mass Production: Upon your official sample approval, production scales seamlessly under strict standard operating procedures (SOP).

4. Global Delivery & Support: We utilize specialized anti-rust packaging (VCI bags, fumigation-free wooden crates) and support FOB, CIF, DDU, and DDP trade terms alongside lifetime technical support.

Frequently Asked Questions (FAQ)

Q1: What is the minimum wall thickness and linear tolerance your precision casting can achieve?

A: Utilizing the advanced silica sol investment casting process, we can achieve a minimum wall thickness of 1.5 mm (and down to 1.0 mm in localized, small areas depending on the geometry). Our dimensional tolerances strictly conform to ISO 8062 CT4 - CT6 and VDG P690 standards. For critical dimensions requiring tighter tolerances, our in-house precision CNC machining center can achieve accuracies up to $\pm0.01\text{ mm}$.

Q2: What types of materials can you use for custom precision casting castings?

A: We support a comprehensive range of ferrous and non-ferrous alloys to meet diverse industrial needs:

• Stainless Steel: 304, 304L, 316, 316L, 17-4 PH, Duplex 2205/2507 (Excellent for anti-corrosion).

• Carbon & Alloy Steel: WCB, WCC, 1020, 1045, 4140, 8620 (High strength and wear resistance).

• Superalloys & Heat-Resistant Steel: Cobalt-based and Nickel-based alloys, 310S (Engineered for extreme high-temperature environments).

Q3: What is your standard lead time for tooling, samples, and mass production?

A:

• Tooling & Sample Production: Typically takes 15 to 25 days, which includes mold design via CAE casting simulation software, pouring, and generating a comprehensive First Article Inspection Report (FAIR).

• Mass Production: Generally takes 30 to 45 days after sample approval, depending on the order volume, component complexity, and required post-treatments (machining, surface coatings, etc.).

Q4: How do you ensure the internal quality and structural integrity of the castings?

A: Quality is our top priority. We implement a rigorous quality assurance workflow that includes 100% Spectrometer testing for chemical composition analysis per melt batch. For internal integrity, we offer advanced Non-Destructive Testing (NDT) such as X-Ray Radiographic Testing (RT) and Ultrasonic Testing (UT) to detect internal gas pores or shrinkage. Surface cracks are monitored using Magnetic Particle (MPI) and Liquid Penetrant Inspection (LPI). Every shipment comes with an EN 10204 3.1 Material Certificate.

Q5: Can you provide one-stop post-processing services like machining and surface treatments?

A: Yes, we provide fully finished, ready-to-assemble components. Our value-added services include advanced CNC turning, milling, and grinding. We also offer professional heat treatments (such as quenching & tempering, solution annealing, and case hardening) and various surface finishes including sandblasting, mirror polishing, pickling & passivation, powder coating, zinc plating, and Dacromet coating.

Q6: Do you accept OEM/ODM orders based on drawings or samples?

A: Absolutely. We are an experienced OEM/ODM manufacturer. You can provide your 3D engineering drawings in STEP, IGS, or X_T formats, or mail us a physical sample. Our engineering team will conduct a thorough Design for Manufacturability (DFM) review to optimize your design for optimal structural casting and cost efficiency.