Explore our flagship custom casting and high-tolerance CNC milling & turning parts
Established in 2014, Dongguan SX Technology Co.,Ltd (Shixin) has developed into a premier high-quality precision manufacturing company and factory specializing in the convergence of precision investment casting, multi-axis CNC machining, and comprehensive structural assembly. Based in the global industrial hub of Dongguan, China, we bridge the gap between advanced metallurgical science and modern high-speed subtraction engineering.
Our operational philosophy is anchored on strict tolerance thresholds, custom material selection, and quick-response customer engineering workflows. We deliver high-integrity metal components designed to withstand challenging environments, servicing industries ranging from automotive and heavy machinery to marine technology, chemical apparatus, and smart home ecosystems.
Broad-Spectrum Material Capability: Our factory handles highly complex structural alloys. For investment casting processes, we specialize heavily in structural stainless steel and carbon steel. In the CNC subtractive domain, our production lines process titanium alloys (including Grade 5 / Ti-6Al-4V), high-tensile stainless steel, carbon steels, structural aluminum alloys (6000 & 7000 series), copper-based alloys (brasses/bronzes), and cemented carbides for ultra-hard tooling requirements.
Why Tier-1 industrial buyers rely on our manufacturing technologies
Utilizing state-of-the-art 3, 4, and 5-axis vertical machining centers. We achieve positional tolerances up to ±0.005mm in complex geometries, eliminating multi-setup alignment errors.
Specialized silica sol and water glass investment casting capabilities. Providing complex near-net shape components with excellent surface finishing, reducing secondary machining costs.
Full-traceability raw material validation, coordinate measuring machine (CMM) testing, and spectrometer inspections ensuring complete chemical compliance and mechanical integrity.
In the modern industrial purchasing landscape, global procurement teams are shifting away from transactional, price-only sourcing towards strategic partner sourcing. OEM procurement heads from Europe, North America, and Japan faces complex challenges involving geopolitical instability, supply chain delays, and raw material volatility. To counteract these variables, manufacturing companies like Dongguan SX Technology Co.,Ltd offer localized design-for-manufacturability (DFM) support combined with transparent supply chains.
Modern engineering demands strict risk-mitigation plans. High-precision parts are the root structural anchors of larger engineering assemblies. A failure in a precision-cast marine valve or a micro-precision CNC turned medical shaft halts entire production systems. Thus, our factory implements a dual-layered Quality Management System (QMS) ensuring that chemical composition reports, heat-treatment certifications, and dimensional inspection reports accompany every shipment.
Industrial components must survive in diverse, hostile environments. Our technical roadmap addresses specific industry specifications:
To remain at the forefront of the precision manufacturing sector, Shixin utilizes advanced materials science and machining strategies:
Titanium Alloy Machining (Grade 5, Ti-6Al-4V): Excellent strength-to-weight ratio and biocompatibility make titanium critical for aerospace and medical applications. However, titanium is notoriously difficult to machine due to its low thermal conductivity and work-hardening characteristics. Our CNC technicians utilize specialized cutting tools with optimized geometry and high-pressure cooling systems to maintain low cutting temperatures, preventing stress cracks in the workpiece.
Stainless Steel Investment Casting (Silica Sol Process): Unlike traditional sand casting, our silica sol investment casting process maintains tight tolerances of CT4-CT6 class, minimizing the need for secondary machining. The resulting surface roughness (Ra 3.2 to 6.3μm) ensures components are near-net shape upon extraction from the mold.
Tour our state-of-the-art facility featuring precision CNC machining and investment casting areas
At Dongguan SX Technology Co.,Ltd, quality is the cornerstone of our manufacturing processes. We firmly believe that only by controlling quality can we survive, develop, and continue to grow in this competitive landscape. Our factory has maintained this commitment to manufacturing excellence since 2014, continually investing in team capabilities and production machinery.
Our QA department utilizes coordinate measuring machines (CMM), optical comparators, digital micrometer sets, spectrometers for material verification, and roughness testers. We verify structural density, hardness, chemical balance, and surface profiles. By enforcing rigorous internal checks at every stage—from the raw material stage to molten pouring, cooling, multi-axis milling, finishing, and final assembly—we ensure your components are delivered within the specified tolerances.
Technical answers to common precision engineering questions
Engineered for strength, durability, and strict geometric tolerances