Global Foundry Standards & Precision Engineering

OEM Investment Foundries Service & Supplier

Decoupling Complexity with Advanced Lost Wax Casting and High-Precision Multi-Axis CNC Machining for Mission-Critical Applications Worldwide.

Featured Components Group A

Precision Cast & Machined OEM Solutions

Explore our premium range of investment cast and custom-machined industrial components engineered to withstand extreme stress, corrosion, and dimensional tolerances.

OEM investment casting parts for construction

OEM investment casting parts for construction

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Custom Stainless Steel Investment Casting Products for Construction Applications

Custom Stainless Steel Investment Casting Products for Construction Applications

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OEM Lost wax castings for the electronics industry

OEM Lost wax castings for the electronics industry

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OEM Providing precision casting services for agricultural machinery Service, Factory

OEM Precision casting services for agricultural machinery Service, Factory

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High-Quality Non-standard custom fastener carbon steel investment casting products Manufacturer, Product

High-Quality Non-standard custom fastener carbon steel investment casting products

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China Precision Investment Casting Manufacturer for Metal Parts Supplier, Factories

China Precision Investment Casting Manufacturer for Metal Parts Supplier

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Custom titanium fittings for the medical Industry

Custom titanium fittings for the medical Industry

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Custom aluminum auto parts CNC machining

Custom aluminum auto parts CNC machining

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2014
Established & Deepening Expertise
±0.005mm
CNC Machining Tolerances Achievable
100%
Raw Material Spectrographic Verification
15+
Key Industries Served Globally
Pioneering Investment Casting

Dongguan SX Technology Co., Ltd (Shixin)

Founded in 2014, Dongguan SX Technology Co., Ltd (locally known and recognized as Shixin) has established itself as an authoritative manufacturer and supplier specializing in high-precision investment casting (lost wax casting), CNC machining, and comprehensive finished assemblies. We operate at the intersection of material science and precision manufacturing, helping global OEMs translate complex mechanical ideas into mission-critical components.

Our operational framework is structured to offer a one-stop industrial service. Our facilities seamlessly bridge the gap between initial metallurgical pouring and precision mechanical refinement. We cater to demanding industries where failure is not an option, including machinery, automobiles, marine systems, commercial shipping, medical equipment, pressure valves, pumps, packaging lines, and electronic appliances.

By leveraging advanced thermal processing, automated wax-injection lines, and multi-axis CNC milling and turning centers, we address both structural integrity and dimensional precision in-house, significantly lowering the total cost of ownership (TCO) for global procurement teams.

Dongguan SX Technology Facility

Global Procurement Needs & Casting Industry Trends

Analyzing the macro forces shaping modern procurement, from supply chain decarbonization to the integration of additive pattern creation.

Supply Chain Resiliency & One-Stop Integration

Global supply chain shocks have driven OEMs to seek unified suppliers capable of handling both raw casting and final high-precision machining. Shixin addresses this by combining our foundry and CNC machining workshops under a single quality control roof, eliminating transit damage, reducing inspection overheads, and speeding up time-to-market.

Escalating Cost-Efficiency via Near-Net Shape Casting

Machining complex parts from solid billets results in excessive chip waste (up to 70% material loss) and extended cycle times. Investment casting generates near-net shape geometries requiring minimal secondary finishing. This dramatically lowers material consumption, especially for expensive alloys like Titanium and 316L Stainless Steel.

Carbon Footprint Reduction & Sustainable Foundries

Modern foundries must adopt green initiatives. Our thermal recovery processes and energy-efficient induction furnaces minimize greenhouse gas outputs. By refining recycled alloy streams and implementing closed-loop wax reclamation systems, we ensure compliance with international environmental standards like ISO 14001.

Material Science & Metallurgical Versatility

Choosing the correct alloy dictates performance under thermal stress, mechanical load, and chemical exposure.

At Dongguan SX Technology Co., Ltd, we process a broad range of raw materials tailored for specific application fields. The properties of these metals are optimized during the molten phase via precise alloy-composition adjustments and verified using optical emission spectrometers.

Casting & Machining Core

Stainless Steel (CF8M, CF3M, 304, 316L)

Mainly utilized for food machinery, marine systems, valves, and pharmaceutical applications. Stainless steel investment casting offers unparalleled corrosion resistance and aesthetic surface finishes. The presence of molybdenum in 316L prevents chloride pitting, making it ideal for marine hardware.

High Structural Strength

Carbon Steel & Low Alloy Steel (WCB, LCC, 8620, 4140)

The standard material for structural reliability, heavy equipment, and agricultural tools. Carbon steel castings deliver high yield strength and fatigue resistance. These parts are typically heat-treated (annealing, normalizing, or tempering) to optimize hardness and ductility prior to final CNC operations.

Aerospace & Bio-Medical

Titanium Alloys (Gr 5 / Ti-6Al-4V)

Reserved for medical implants, aerospace components, and extreme chemical mixers. CNC machining titanium requires rigid work-holding and specific cooling strategies due to its poor thermal conductivity. We provide high-integrity titanium components that meet bio-compatibility regulations.

Lightweight & Conductivity

Aluminum & Copper Alloys

Aluminum (A356, 6061-T6) provides a high strength-to-weight ratio for automotive components, while copper alloys (bronze, brass) offer superior thermal/electrical conductivity and low friction coefficients for bearings and marine impellers.

Extreme Wear Resistance

Cemented Carbide & Tool Steels

For applications experiencing high friction and wear, such as mining drill parts, industrial cutting blocks, and stamping dies. Shixin uses specialized tooling and wire EDM/CNC grinding processes to shape these extremely hard materials.

Advanced Production Workshops & Equipment

Take an inside look at our manufacturing facilities, where raw engineering designs are transformed into high-precision metal parts.

Shixin Workshop Area 1

Wax Pattern Injection Line

Automatic wax injectors ensure dimensional uniformity across high-volume production batches.

Shixin Workshop Area 2

Ceramic Shell Coating Line

Robotic arms dip wax assemblies into refractory slurry for building strong ceramic molds.

Shixin Workshop Area 3

High-Frequency Induction Melting

Strict temperature monitoring during melting prevents dissolved gases and slag inclusions.

Shixin Workshop Area 4

CNC Machining Center

High-speed multi-axis milling and turning tools provide micro-level precision on castings.

Shixin Workshop Area 5

Shot Blasting & Surface Cleaning

Secondary finishing removes remaining shell material, creating a smooth and uniform surface.

Shixin Workshop Area 6

Inspection & Metrology Lab

Equipped with CMM, calipers, thread gauges, and spectrometers to verify every batch.

Shixin Quality Inspection Process Additional QC Inspection View
Zero-Defect Quality Control

A Culture of Strict Tolerances and Metrology

Quality is the ultimate cornerstone of the manufacturing industry. We firmly believe that only by controlling quality well can a business survive, develop, and build lasting customer relationships. Therefore, we have been working in this industry unremittingly since 2014, continually improving the expertise of our team and refining the company's manufacturing processes.

Our quality control protocol is structured across three key pillars:

  • Incoming Material Spectrometer Analysis: Every heat of steel, aluminum, or titanium is checked before casting to guarantee that the chemical composition matches customer expectations and ASTM/EN standard requirements.
  • Dimensional Metrology (CMM): Utilizing Coordinate Measuring Machines, we check critical features like hole concentricity, flatness, circularity, and positional tolerances, achieving precision down to micron levels.
  • Non-Destructive Testing (NDT): Dye penetrant inspection, magnetic particle testing, and ultrasonic testing are performed upon request to identify internal porosity, shrinkage, or micro-cracks.

Due to our insistence on strict quality requirements, we have been praised by many global clients in fields such as automotive engineering, valve design, and medical hardware, ensuring that our products always align with high-integrity applications.

Macro Industry Solutions

How Shixin integrates investment casting and CNC machining to address specific industry problems.

Marine & Petrochemical Valves

Fluid management environments expose parts to high pressures and chemical corrosion. We supply custom valve bodies, gates, impellers, and pump housings in 316L and duplex stainless steel. Our casting methods minimize internal porosity, ensuring that our pressure-retaining components are leak-proof under intensive operations.

Construction & Heavy Machinery

Heavy machinery relies on carbon steel components that can handle high structural stresses. Our fasteners, structural brackets, and links are heat-treated to maximize load capacity, preventing brittle failure when exposed to low temperatures or harsh environments on construction sites.

Electronics & Packaging Instruments

Electronics packaging requires lightweight housings with high heat dissipation. By using thin-walled investment casting in aluminum and custom CNC milling, we deliver structural frames that house electronics, protecting them from electromagnetic interference and physical shocks.

Technical Roadmap: 2025 and Beyond

Future Outlook and Technological Upgrades

To maintain our position as a preferred global supplier, Shixin is updating our foundry and CNC machining setups to align with "Industry 4.0" concepts. Our roadmap focuses on integrating advanced tools, automation, and predictive software to refine our manufacturing cycle:

1. Tooling-Free Rapid Prototyping via 3D Printing

Historically, investment casting required expensive steel tooling to create wax patterns, which could delay projects by weeks. Shixin now offers direct PMMA/wax pattern 3D printing. This tool-less technique allows us to cast functional prototypes in various metals within days, facilitating quick design revisions and verification.

2. Advanced Thermal Flow Simulation

By using casting flow analysis software (such as ProCAST), we can simulate molten metal flow and solidification patterns before cutting tooling. This allows our design team to predict potential hot spots, air traps, and shrinkage cavities, so we can adjust runner designs to ensure casting integrity on the first try.

3. Multi-Axis CNC Automation

To reduce labor costs and increase consistency, we are expanding our multi-axis CNC machining capabilities (including 5-axis milling). Machining complex casting profiles in a single setup preserves geometric integrity and ensures precise concentricity across multiple features.

Localized Global Support & Logistics

We work with logistics networks to support DDP, CIF, and FOB shipments, helping parts arrive on schedule. Our support team coordinates with customs brokers to simplify clearance processes and provide clear updates to international buyers.

We provide localized engineering support through bilingual representatives. Whether reviewing custom drawing tolerances, discussing raw material certifications, or troubleshooting design for manufacturability (DFM) concerns, our engineers are accessible through direct lines.

Compliance & Certifications Guarantee

Our facility runs under ISO 9001:2015 guidelines. We focus on strict traceability, linking every batch back to its raw material source. Additionally, we verify that our products align with the following standards:

  • RoHS & REACH Compliance: Guaranteeing that all coatings, surface finishes, and alloys are free from hazardous substances.
  • Pressure Equipment Directive (PED): Certifying that valves, fittings, and pressure components conform to European safety regulations.
  • Material Certificates: Delivering EN 10204 3.1 certificates, mechanical property reports, and hardness logs with every shipment.

Technical Q&A: Strategic Procurement & Engineering

Detailed answers to help engineers and sourcing specialists optimize their design choices for casting and CNC processes.

Q1: What are the typical dimensional tolerances achievable with Shixin's investment casting and CNC machining?
For raw investment castings, we conform to ISO 8062-3 DCTG class 6 to 8, which usually equates to ±0.15mm to ±0.5mm depending on the component's geometry and size. For dimensions requiring tighter tolerances, we use secondary CNC milling and turning to hold tolerances as close as ±0.005mm. This hybrid process achieves a balance between cost-effectiveness and precision.
Q2: How does Shixin prevent internal porosity in thick-walled stainless steel casting parts?
Porosity is controlled through casting simulation software (ProCAST) during the runner and gating system design phase, ensuring proper directional solidification. We also manage pouring temperatures and mold preheating cycles to keep gas from being trapped. For demanding components, we can perform non-destructive tests (such as X-ray and ultrasonic testing) to confirm that parts are solid inside before shipping.
Q3: Can Shixin process and machine hard materials like Cemented Carbide and Titanium?
Yes. We possess specialized CNC machining setups, tooling, and wire EDM equipment designed to handle hard materials. For titanium, we utilize rigid work-holding, specialized cutting tools, and temperature-controlled liquid cooling to protect the material from thermal strain and work-hardening. Cemented carbide parts are typically cast near-net shape and then ground to their final dimensions.
Q4: What is the typical lead time for a custom investment casting project from tooling to delivery?
Generally, mold design and manufacturing take 2 to 3 weeks. Sample production and initial metallurgical and dimensional approvals take an additional 1 to 2 weeks. Once the samples are approved, batch production takes 3 to 4 weeks, depending on the order volume. If rapid prototypes are needed, we can use 3D-printed patterns to bypass the mold-making phase and deliver cast parts in about a week.
Q5: Do you supply raw castings, or can you provide fully finished components?
We provide both raw castings and fully finished components. Shixin operates a dedicated machining division equipped with advanced CNC machinery to handle turning, milling, drilling, and grinding. We also provide surface finishing options such as passivation, electro-polishing, powder coating, zinc plating, and anodizing to deliver assembly-ready components directly to your production line.
Featured Components Group B

High-Precision Machining & Specialized Assemblies

Explore our CNC machining, milling, and specialized valve casting solutions manufactured to strict tolerances for global industrial operations.

High-Quality Carbon steel investment casting parts for daily hardware Service, Suppliers

High-Quality Carbon steel investment casting parts for daily hardware

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Custom Precision CNC Milling Machining

Custom Precision CNC Milling Machining

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Custom Stainless Steel Investment Casting Valves

Custom Stainless Steel Investment Casting Valves

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Custom CNC Turning and CNC Milling Services for Various Metal Materials

Custom CNC Turning and CNC Milling Services for Various Metal Materials

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OEM Investment Casting Stainless Steel Parts for Machinery Service, Factory

OEM Investment Casting Stainless Steel Parts for Machinery Service, Factory

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China 5 axis CNC machining of impeller components Factory, Factories

China 5 axis CNC machining of impeller components Factory

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Custom CNC Machining for Complex Geometry Parts Service, Supplier

Custom CNC Machining for Complex Geometry Parts Service, Supplier

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Custom aluminum CNC precision parts

Custom aluminum CNC precision parts

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