Explore our core catalog of OEM components engineered to tight tolerances for aerospace, automotive, marine, and high-pressure fluid control systems.
Founded with a dedication to engineering precision, Dongguan SX Technology Co.,Ltd has built an illustrious reputation for rich expertise in precision investment casting, CNC machining, and complex mechanical assembly. Over the years, our manufactured parts have served crucial roles across a diverse cross-section of global industries. Today, our highly engineered solutions are deployed in machinery, automotive drivetrains, marine hulls, naval shipping, specialty instrumentation, valve bodies, industrial pumps, consumer electronic appliances, automated packaging lines, precision horology (watches), construction architectures, and challenging chemical processing facilities.
We leverage advanced manufacturing equipment and cutting-edge metallurgy technology to address the most demanding design requirements. By pairing premium raw materials with strict processing parameters, we deliver castings and machined components that feature excellent surface finish, high dimensional stability, and prolonged wear resistance. Whether you require standard components or bespoke non-standard customization, our agile engineering team is capable of accelerating prototyping cycles and streamlining large-scale production runs.
We work with a comprehensive spectrum of ferrous, non-ferrous, and super-alloy metals to meet specific mechanical load, thermal tolerance, and anti-corrosion benchmarks.
Utilizing high-grade stainless steel (including austenitic SUS304, SUS316, SUS316L, and duplex grade 2205). Ideal for applications requiring superior corrosion resistance, high tensile strength, and excellent fatigue life under acidic or high-salinity conditions.
We process standard carbon steels (such as WCB, LCC, and 1045) and special alloy steels. These materials deliver excellent machinability, structural rigidity, and respond well to case hardening and heat treatment processes for wear-prone components.
Highly demanded in deep-sea marine engineering and aerospace. Our Titanium alloy (Grade 5, Ti-6Al-4V) components offer an exceptional strength-to-weight ratio, complete bio-compatibility, and unmatched resistance to extreme sea pressure.
| Manufacturing Process | Commonly Processed Materials | Achievable Surface Roughness | Dimensional Tolerance Range | Key Industry Applications |
|---|---|---|---|---|
| Investment Casting (Lost Wax) | Stainless Steel (304, 316), Carbon Steel, Heat-Resistant Alloys | Ra 3.2 – Ra 6.3 μm | ISO 8062 CT4 - CT6 | Valves, Pumps, Marine fittings, Bus frames, Automotive castings |
| Precision CNC Machining | Titanium Alloy, Cemented Carbide, Aluminum (6061, 7075), Brass, Copper | Ra 0.8 – Ra 1.6 μm | ±0.005 mm to ±0.01 mm | Deep-sea submersibles, wheelchair components, custom aerospace joints |
| Combined Casting & CNC Post-Processing | Duplex Stainless Steel, Hardened Tool Steel, Specialized Cast Iron | Ra 0.4 – Ra 1.6 μm | Up to ±0.002 mm (critical areas) | Automotive transmission parts, pharmaceutical mixers, high-pressure seals |
Our facility is equipped with automated investment casting lines and multi-axis CNC machines to support scale production with unmatched repeat accuracy.
At Dongguan SX Technology Co.,Ltd, we firmly believe that quality is the cornerstone of the manufacturing industry. We recognize that only by strictly controlling quality can a manufacturing team survive, develop, and continue to grow. Because of this unwavering commitment, we have been working unremittingly in the precision machining and casting sectors since 2014, constantly upgrading our equipment, training our QC professionals, and scaling our inspection capabilities.
We deploy professional inspection equipment to verify mechanical, chemical, and dimensional compliance. Our testing arsenal includes Coordinate Measuring Machines (CMM) for complex geometrical tracking, Optical Emission Spectrometers for precise chemical element verification, Tensile Testers to ensure mechanical durability, and Non-Destructive Testing (NDT) gear such as X-ray testing and liquid penetrant testing to rule out internal porosity or surface micro-fissures. Our dedication to strict tolerances and defect-free shipments has garnered long-term praise from global buyers across key industrial markets.
How our smart manufacturing plant coordinates logistics, automated hardware fabrication, and digital tracking to de-risk overseas procurement.
Every casting run and machining batch is serialized through our localized digital enterprise resource planning (ERP) system. This allows customers to receive real-time updates regarding mold fabrication, pouring runs, CNC post-processing, and laboratory testing schedules.
Based in Dongguan, the manufacturing heart of China, we have immediate access to world-class steel foundries, heat treatment specialists, alloy suppliers, and high-speed port logistics. This raw material proximity lowers overhead costs and eliminates transit latency.
By blending traditional mold-making with rapid 3D printing wax-pattern technologies, we can quickly produce physical prototypes for structural testing, helping buyers optimize their design before committing to high-volume hard-tooling investments.
We customize our casting and machining workflows to solve sector-specific challenges, ensuring full operational compliance under harsh conditions.
The Challenge: Severe crevice corrosion and pitting caused by saltwater, coupled with crush pressures at deep-sea depths.
Our Solution: We cast and machine structural parts in high-strength Titanium alloys and duplex stainless steels (such as 2205). These parts maintain structural integrity at high pressure and are highly corrosion-resistant.
The Challenge: Finding the optimal balance between components' weight reduction (lightweighting) and high structural fatigue resistance.
Our Solution: Precision lost-wax carbon steel castings for bus structural joints and engine mounts. Our parts undergo strict normalizing and tempering cycles to maximize toughness and load-bearing properties.
The Challenge: Fluid erosion, pressure drops, and zero-tolerance leaks in hazardous chemical processing and municipal lines.
Our Solution: Investment cast valve body designs featuring dense interior metallurgy, verified by hydrostatic and NDT testing, minimizing wall thickness variation and ensuring reliable flow control.
Dongguan SX Technology Co.,Ltd is committed to continuous process improvement to remain at the cutting edge of global manufacturing trends.
We are expanding our hybrid tooling workflows, where 3D-printed sand molds and PMMA wax patterns are utilized to build complex casting geometries that were previously impossible to extract using traditional split-die tooling designs. This eliminates draft angle restrictions and reduces weight.
We are deploying AI-powered surface scanners alongside our optical CMM machines. By training machine learning algorithms on defect morphologies, we can detect microscopic surface anomalies in real time, preventing defective components from ever entering the packaging stage.
As green manufacturing mandates grow worldwide, we are upgrading to energy-efficient electromagnetic induction furnaces. This reduces raw material oxidation, saves energy, and helps our global partners meet their Scope 3 greenhouse gas emission limits.
Global logistics demand clear regulatory pathways. We structure our administrative workflows to ensure smooth customs operations and risk-free material procurement.
All metallurgy inputs are verified lead-free and free of toxic additives. We provide complete EN 10204 3.1 material certificates to guarantee compliance with EU and North American regulations.
Your CAD drawings, proprietary molds, and customized fixture models are protected through strict, legally binding Non-Disclosure Agreements (NDAs). Molds are cataloged and kept in secure tooling storage zones.
Offering versatile delivery options (including FOB, CIF, DDU, and DDP). Our customs paperwork is optimized for quick clearance, avoiding shipping delays at key entry ports.
Technical answers to help engineers, procurement agents, and supply chain managers make informed decisions.
Typically, mold design and tool construction take about 2 to 3 weeks. Once the sample mold is approved, casting sample production requires 10 to 15 days. Mass production lead times generally range between 30 and 45 days, depending on geometry complexity, order volume, and required heat treatments.
At Dongguan SX Technology Co.,Ltd, we focus on the high-quality Silica Sol investment casting process. Compared to the water glass process, silica sol casting yields far superior dimensional tolerance levels (typically ISO 8062 CT4-CT6) and excellent surface finishes (Ra 3.2-6.3 μm), which significantly reduces the amount of post-cast machining required.
For precision CNC milling and turning parts, we routinely hold linear tolerances down to ±0.005 mm. Geometry characteristics, such as roundness, concentricity, and flatness, are measured with our automated Coordinate Measuring Machines (CMM) to ensure they perfectly match client drawing specifications.
Yes. Every single batch is shipped alongside certified chemical analysis and physical testing sheets (compliant with DIN EN 10204 3.1). These certificates track chemical elements (via spectrometer verification) as well as mechanical values like yield strength, tensile strength, elongation percentage, and hardness testing results.
Yes, we specialize in hard-to-machine alloys. We utilize specialized multi-axis CNC machines and carbide tools to mill, turn, and shape difficult metals (including Grade 5 Titanium, custom cemented carbide components, and wear-resistant tool steels).
From industrial bicycle hardware to specialized sub-surface submersibles and valve components, choose our trusted industrial solutions.
SX Machining