Explore our premium precision investment casting and industrial machining parts engineered for elite OEMs globally.
Dongguan SX Technology Co.,Ltd has very rich experience in precision casting, CNC machining and assembly. Our products are used in machinery, automobiles, marine, ships, equipment, valves and pumps, electronic appliances, packaging, watches, construction, chemical industry and other industries. The most commonly used materials for investment casting are stainless steel and carbon steel. And the most commonly used materials for CNC machining include titanium alloy, stainless steel, carbon steel, aluminum alloy, copper alloy, cemented carbide, etc. We have advanced manufacturing equipment and technology and are able to respond quickly to your needs.
By integrating raw smelting, shell-making, heat treatment, surface finishing, and multi-axis CNC milling, we ensure our global partners receive ready-to-assemble mechanical components that pass rigorous chemical and structural tests. Our continuous technical refinement allows us to reduce raw material waste, shorten development lifecycles, and maintain structural integrity across challenging industrial environments.
Positioned at the nexus of the global manufacturing shift, China's modern foundries supply mission-critical components to structural growth sectors.
Global OEMs face escalating costs from fragmented production routes. We eliminate this friction by bridging the gap between raw foundry outputs and high-precision CNC finished parts under one single point of accountability.
Heavy machinery and automotive drivetrains require lighter, structurally sound components. Our metallurgical control and high-integrity steel casting cater directly to solar bracket parts, marine engine blocks, and EV chassis.
Operating out of Dongguan, we conform to stringent ISO regulations, RoHS directives, and international dimensional standards (ASTM, DIN, JIS), ensuring worry-free imports for customers in North America, Western Europe, and Japan.
Equipped with advanced smelting ovens, automatic wax injection stations, shell-building lines, and high-precision multi-axis CNC mills.
We work with an expansive array of engineering materials, customizing metallurgical recipes to match exact physical and chemical requirements.
| Material Category | Common Grades Worked | Core Manufacturing Process | Key Performance Indicators (KPIs) | Primary Target Application |
|---|---|---|---|---|
| Stainless Steel | 304, 316, 316L, Duplex 2205, 17-4 PH | Investment Casting (Silica Sol) + CNC | High Corrosion Resistance, Excellent Ductility | Marine Hardware, Valve Components, Chemical Fittings |
| Carbon Steel | WCB, LCB, AISI 1020, AISI 1045 | Lost Wax Casting + Secondary Machining | High Tensile Strength, Structural Reliability | Heavy Machinery Parts, Automotive Linkage |
| Titanium Alloys | Gr. 2, Gr. 5 (Ti-6Al-4V) | Multi-Axis Precision Machining | Extreme Strength-to-Weight, Bio-compatibility | Aerospace Structural Parts, Orthopedic Implants |
| Aluminum Alloys | A356, 6061-T6, 7075-T6 | Die Casting & high-speed 5-Axis CNC | Optimal Thermal Conductivity, Low Weight | Bicycle Parts, Electronics Housing, Heat Sinks |
| Cemented Carbide | Tungsten Carbides (YG6, YG8) | Powder Metallurgy + EDM Finishing | Unmatched Wear Resistance, Extreme Hardness | Cutting Tools, High-wear Industrial Nozzles |
We have professional testing equipment and professional QC personnel, and we adhere to strict tolerances and quality standards for the products we produce. Due to our insistence on strict quality requirements, we have been praised by many customers.
Quality is the cornerstone of the manufacturing industry. We firmly believe that only by controlling quality well can we survive, develop, and get better and better. Therefore, we have been working in this industry unremittingly since 2014 and continue to Improve the company's team and improve the company's production capacity.
Our inspection capabilities encompass Spectrometer Analysis for chemical composition, Hardness Testing (Rockwell & Brinell), Coordinate Measuring Machine (CMM) dimensional verification, and Non-Destructive Testing (NDT) such as Ultrasonic Flaw Detection and Liquid Penetrant Testing. This comprehensive suite ensures that zero defect parts leave our facility.
Understanding environmental demands allows us to optimize casting and machining operations for specific operational conditions.
With saltwater exposure acting as a severe corrosive agent, we employ Silica Sol investment casting utilizing high-alloy stainless steel (316L and Duplex 2205). These structural components pass salt-spray tests and structural load analysis for long lifetimes at sea.
Heavy dynamic forces require casting parts with zero internal porosity. We enforce hot-isostatic pressing (HIP) and comprehensive X-ray examinations to prevent micro-cracks under load, optimizing long-term operation of gear assemblies and mechanical shafts.
Fluid systems demand extremely smooth pathways to reduce turbulence and cavitation. By coupling precision lost wax casting with subsequent internal CNC milling and diamond paste polishing, we guarantee flawless fluid mechanics.
Dongguan SX Technology Co., Ltd. is continually upgrading its industrial equipment to remain at the absolute vanguard of precision engineering. Our future developments target two major fields: ecological footprint minimization and the complete digitalization of physical workflows.
To reduce energy consumption within our casting lines, we are transitioning to modern mid-frequency induction furnaces. On the machining side, we are implementing CAD/CAM simulation environments that model tool stress beforehand, allowing our technicians to prevent material defects before chips are even cut.
Additionally, we are adopting advanced 3D wax-printing machines. For custom structural designs or rapidly iterating prototype molds, this system cuts down development phases from weeks to hours, giving our engineering partners a critical advantage during early launch phases.
Technical answers to common engineering, quality control, and supply chain queries.
Using Silica Sol precision investment casting, we reliably achieve tolerances conforming to the ISO 8062-3 CT5 to CT7 standard. By introducing post-casting CNC machining, we easily refine dimensions down to micron tolerances of +/-0.005mm.
We perform non-destructive tests (NDT) including magnetic particle testing, dye penetrant inspections, and industrial X-ray imaging. This detects internal shrinkage, gas porosity, or cracks that could compromise structural integrity under load.
Depending on material and application, we perform bead blasting, chemical passivation, electro-polishing, chrome plating, powder coating, anodizing (especially for aluminum alloy components), and thermal hardening.
Investment casting provides significantly superior surface finishes (typically Ra 3.2 to 6.3μm before machining) and complex shapes with thin walls. This reduces overall weight and minimizes the need for extensive, costly post-machining work.
Titanium has low thermal conductivity, concentrating heat at the cutting edge. We prevent tool degradation by utilizing carbide tooling featuring advanced AlTiN coatings, maintaining low speeds with high feed rates, and running high-pressure coolant directly at the cutting zone.
Generally, casting mold creation and initial sample testing take 21 to 30 days. Once the samples are approved by the client, mass production typically ranges between 30 and 45 days, depending on geometry complexity and secondary CNC requirements.
Choose from our specialized manufacturing categories designed to meet international engineering tolerances.
SX Machining
