Engineered for high durability and strict tolerances, serving the automotive, mass transit, electronic, and marine infrastructure segments across Mexico.
The manufacturing landscape in Mexico is experiencing a paradigm shift. Driven by nearshoring strategies and the trade facilitation frameworks of the USMCA (Agreement between the United States of America, the United Mexican States, and Canada), global OEMs are aggressively relocating production facilities to Mexican industrial clusters such as Monterrey, Saltillo, Querétaro, and San Luis Potosí.
As Tier-1 and Tier-2 automotive, aerospace, and medical device suppliers establish operations in Mexico, the demand for high-complexity metallic components has surged. Investment casting (lost wax casting) has emerged as the premier manufacturing method to meet these needs, offering net-shape capabilities, outstanding surface finishes, and the metallurgical integrity required for critical stress applications.
At Dongguan SX Technology Co., Ltd, we act as a vital supply chain link for Mexican procurement officers, offering Chinese cost efficiencies paired with Western engineering standards. Our high-precision production processes directly address the casting shortages and tooling lead-time bottlenecks currently facing the Mexican manufacturing sector.
Seamless Logistics to Major Ports: Streamlined sea freight shipping from Shenzhen to Manzanillo or Lázaro Cárdenas ports, complete with custom clearing documentation support.
Material Certification: Full traceability with mill test reports (MTRs) matching ASTM, AISI, DIN, and JIS specifications demanded by aerospace and automotive assembly plants in Mexico.
Advanced Secondary CNC Machining: Integrated casting and CNC finish-machining under one roof, reducing downstream assembly errors for operations in Nuevo León or Baja California.
High-speed engineering, advanced metallurgy, and strict quality control standards established since 2014.
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.
For our clients in the Mexican market, we offer dedicated project management to ensure seamless communication across time zones. We specialize in transforming complex design concepts into high-integrity cast components that adhere to strict global manufacturing tolerances.
Tour our state-of-the-art lost-wax foundry and precision machining facilities.
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.
Optical Spectrometer: Chemical composition validation of every batch of stainless steel, carbon steel, and tool steel before pouring.
CMM Coordinate Measuring Machine: Verification of tight physical dimensions, geometry, and locations on highly complex parts.
Non-Destructive Testing (NDT): Standardized liquid penetrant testing and magnetic particle inspections to rule out internal gas porosity or micro-cracks.
Industrial components designed to resist corrosion in Mexican chemical plants and marine environments.
Custom engineering from concept prototyping to volume industrial manufacturing.
Our casting foundry uses the silica sol process (lost wax casting method) for stainless steel and high-alloy parts. This provides excellent surface smoothness (Ra 3.2 to 6.3 microns) and tight linear tolerances conforming to ISO 8062-3 DCTG4 to DCTG6 standards.
For heavier machinery elements, carbon steel casting options using water glass processes can be utilized to achieve optimal tensile strength at a competitive cost structure.
Every casting design goes through solidification simulation software to model hot spots, shrinkage issues, and pour velocities before tooling production begins, minimizing the risk of internal casting porosity.
| Material Category | Grades Offered |
|---|---|
| Stainless Steel | CF8 (304), CF8M (316), CF3M (316L), Duplex Stainless Steel (2205), 17-4 PH |
| Carbon Steel | WCB, WCC, AISI 1020, AISI 1045, Q235, Q345 |
| Alloy Steel | 4140, 8620, Cr-Mo Alloys, High Wear-Resistant Steel |
| CNC Machined Extras | Titanium Alloys (Gr 5), Copper Alloys, Aluminum Alloys (6061-T6, 7075-T6) |
Navigating cross-border trade, tariffs, and customs paperwork efficiently.
Establishing factories inside Mexico or nearshoring operations requires a strong external raw casting supply chain. Dongguan SX Technology has developed robust logistics paths to help buyers handle custom regulations seamlessly.
Duty & Customs Optimization: We support Mexican custom brokers with complete HS code classification (typically HTS 7325.99 for cast iron/steel products) to ensure fast border clearance at Laredo, Manzanillo, or Tijuana entry zones.
IMMEX Maquiladora Integration: We provide structured invoices and pack lists aligned with IMMEX tax programs, facilitating temporary import mechanisms without excessive value-added tax (IVA) exposure.
Whether you require ex-works, FOB Shenzhen, or DDP shipments to your warehouse door in Monterrey, our export team is experienced in handling complex international shipping rules.
Key technical details regarding tool making, casting tolerances, shipping, and sample approvals.
Explore our main product portfolio featuring custom-molded parts with strict tolerances.
SX Machining
