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As a designated OEM supplier for top Chinese auto giants including FAW, FOTON, and SINOTRUK, we specialize in end-to-end custom sand casting solutions — from optimized product design and precision CNC machining to strict quality control and on-time global delivery. Our grey iron and ductile iron casting components meet ASTM, DIN, BS, and JIS industry standards, perfectly matching the rigorous demands of truck trailer, heavy-duty vehicle, construction machinery, and agricultural equipment manufacturers worldwide.
Mold Making & Design Validation: Custom mold fabrication based on client drawings, with DFMA (Design for Manufacturability) review to optimize production efficiency
Clay Wet Sand Casting: Precision sand casting with resin sand cores, ensuring consistent dimensional accuracy and structural integrity
Heat Treatment: Controlled heat treatment to optimize the mechanical properties of ductile iron, including tensile strength, hardness, and impact resistance
Precision CNC Machining: High-precision machining via imported 3-axis to 5-axis CNC equipment, achieving tolerances as tight as ±0.01mm
Surface Treatment: Custom surface finishing to meet corrosion resistance, wear resistance, and aesthetic requirements
Multi-Stage Inspection: Full dimensional, material, and performance testing before final packaging
Standardized Packaging & Shipping: Export-compliant packaging with full traceability, arranged via FOB, CIF, EXW, or custom trade terms
We enforce a 5-stage quality control framework to ensure zero-defect delivery:
Incoming Material Inspection: 100% spectral analysis and mechanical testing of all raw metal materials
Pre-Production Equipment Validation: Full calibration of all production and testing equipment before each production run
In-Process Quality Control (IPQC): Real-time inspection at every production stage, with non-conforming parts immediately isolated and corrected
Final Quality Control (FQC): Full dimensional and performance testing of all finished parts before packaging
Outgoing Quality Control (OQC): Random batch inspection before shipment, with full quality documentation provided to clients
As a specialized OEM and ODM casting manufacturer for global industrial clients, we deliver fully tailored solutions to meet your unique product requirements:
Full Drawing Compatibility: We support all major design formats, including STEP, STP, DWG, DXF, SolidWorks, UG, Pro/E, CATIA, and more. We can also develop full technical drawings from your physical samples or conceptual design briefs.
Full Customization Scope: Customizable material grades, casting processes, machining tolerances, surface treatments, and batch sizes, with support for components ranging from 0.01kg precision parts to 3000kg heavy-duty large castings.
Prototyping Support: Fast sample production within 15–20 working days, with the full sample fee deducted from your bulk order payment.
Dedicated Account Management: Every custom order is assigned a dedicated project manager and engineering team, providing full-cycle tracking and proactive communication from design to delivery.
Design Optimization Support: Our 40+ year experienced engineering team provides free design for manufacturability reviews, helping you optimize component design to reduce production costs, shorten lead times, and improve product performance.
We are an ISO9001 and IATF16949 certified professional foundry manufacturer with over 40 years of experience in casting, forging, and CNC machining. We operate our own full-scale production facility, providing end-to-end one-stop service directly to our industrial clients, with significant pricing and quality control advantages over intermediary traders.
Our foundry holds internationally recognized certifications including ISO9001:2015, IATF16949:2016, CE, SGS, RoHS, and ISO14001. Our products fully comply with global industry standards such as ASTM, DIN, BS, JIS, and AAR, meeting the strict entry requirements for commercial vehicle and industrial markets worldwide.
Yes. As a full-service OEM and ODM custom casting manufacturer, we can produce high-precision castings completely based on your technical drawings, samples, or specific requirements. Our in-house engineering team can also provide design optimization support to improve product performance and reduce production costs.
For stock standard items, we can arrange shipment immediately upon payment confirmation. For custom OEM orders, mass production lead time is 30–45 working days, depending on the order quantity, product complexity, and technical requirements. Sample production can be completed within 15–20 working days.
We can produce custom sand castings with a blank weight ranging from 0.01kg to 3000kg, with casting tolerances of CT5–CT8 and CNC machining tolerances as tight as ±0.01mm, fully meeting the needs of both small precision components and large heavy-duty casting parts.
We do not offer completely free samples upfront, but the full sample fee will be deducted from the payment of your formal bulk order. This ensures we can allocate the necessary engineering and production resources to deliver high-quality, fully compliant samples that match your exact specifications.
Why Choose SITC for Your Automotive Forging Parts Needs
SITC is a professional forging manufacturer with a wholly-owned production factory, 40+ years of industry experience, and 800+ skilled workers. We guarantee on-time delivery via our 1.5-hour proximity to Qingdao Port, a 12-18 month product warranty, and 24-hour after-sales response. We provide end-to-end one-stop service, delivering optimal forging solutions for global commercial clients.
Our custom metal casting and machining services support a diverse range of industries worldwide, including automotive, commercial vehicles, agricultural machinery, construction and mining equipment, railway transportation, marine engineering, energy and power generation, oil & gas, industrial machinery, medical equipment, aviation, and defense applications.
Each finished product is assigned a unique identification number and recorded together with the raw material batch number and production code to ensure full traceability in the event of any quality issue or dispute.
Designated Supplier of Custom Metal Components for Leading Global Truck Brands.
Delivering true one-stop service and optimal solution.
With extensive manufacturing experience, we produce high-quality customized metal components according to customer drawings, samples, or technical specifications.
Large castings for heavy-duty truck, train/locomotive/subway/metro/railway/farm/agricultural/forestry/construction/building/mining/wind turbine machinery components, industrial/engineering/energy/power plant equipment, marine/shipbuilding/petroleum/petrochemical/Oil Drilling/metallurgy machinery.
We can manufacture various castings with high-precision CNC machining according to customers' drawings, samples, specifications, or technical requirements.
Casting weight range: 0.1 kg–3000 kg.
A leading company in the precision casting industry, supported by a senior engineering team with specialized expertise and extensive experience. We excel at handling special materials, complex structures, defect control, and advanced processing, enabling us to meet evolving customer needs and deliver optimal, one-stop solutions to clients worldwide.
World-class manufacturing facilities certified to ISO 14001, IATF 16949, and ISO 9001.
All raw materials are sampled and tested in our inspection laboratory upon arrival at the factory. Only qualified materials are allowed to enter our warehouse.
The factory covers an area of more than 90,000 square meters and is equipped with raw material warehouses, inspection laboratories, shell molding workshops, casting workshops, pretreatment workshops (including sandblasting, shot blasting, and polishing), CNC machining centers, electrophoresis workshops, testing laboratories, non-conforming product warehouses, semi-finished product warehouses, packaging workshops, and finished product warehouses.
Benefiting from a strategic geographical location, our factory is only a one-and-a-half-hour drive from Qingdao Port, the nearest shipping port. This advantage enables highly efficient logistics operations and ensures smooth and on-time delivery to customers worldwide.
Based in China, serving customers worldwide, we are committed to delivering greater value to global clients.
As an ISO 9001 and IATF 16949-certified OEM/ODM manufacturing partner, we provide comprehensive one-stop services and end-to-end solutions for global customers. From the early stage of product development, we work closely with customers to optimize structural components through casting solutions, helping improve product design, reduce costs, and maximize customer value.
With strong technical expertise,a robust production management system, advanced production equipment, a strict and effective quality control system, and state-of-the-art inspection instruments and methods, we consistently deliver high-quality products to customers worldwide.
Our factory is equipped with complete production lines, and the entire production chain — from raw materials to finished products — is fully under our control. This enables us to consistently deliver high-quality products at competitive prices, along with excellent service worldwide.
Each of our products is a work of art.
One of the leading suppliers of hardware customization services for commercial vehicle manufacturers worldwide.
We leverage our first-mover advantage to drive the global transition to a low-carbon economy.
One of the most advanced CNC machining centers, featuring dozens of state-of-the-art 3-axis, 4-axis, and 5-axis CNC machines.
State-of-the-art equipment significantly improves production efficiency and product quality, ensuring that all quality standards are met.
A leading OEM manufacturer of precision machinery parts for the foundry industry, specializing in design, R&D, and production for over 40 years, supported by 60 experienced engineers and 800 skilled workers.
Equipped with over 30 types and more than 400 sets of advanced machinery, we specialize in casting, forging, stamping, machining, drilling, grinding, molding, and surface treatment processes.
We have dedicated technical and R&D departments to provide comprehensive solutions for manufacturing and production-related challenges.
Our R&D department uses advanced design and simulation software, including AutoCAD, SolidWorks, UG, Pro/ENGINEER, CAXA, Rhino, Arena, and DEFORM, during the new product development process.
Every batch, from raw materials to finished products, undergoes laboratory testing to ensure compliance with contractual quality requirements.
Each batch of finished products undergoes spectral inspection. Tensile testing is conducted on specific products to ensure compliance with required strength standards.
We specialize in OEM custom casting and forging solutions for automotive, heavy equipment, railway, marine, energy, aerospace, defense, medical, and industrial applications.
We have been strengthening and expanding our competitive advantage to stay ahead of the competition, delivering products and services beyond expectations.
We are familiar with a wide range of international industrial standards, including Chinese GB, ASTM, AISI, DIN, NF, JIS, BS, AS, and AAR standards.
As most of our products are exported to European and North American markets, we have extensive experience with international technical specifications and quality requirements.
Guided by the philosophy of putting customer needs first and customer satisfaction foremost, we focus on understanding customer requirements and exceeding expectations. Agile and responsive, we continuously meet the evolving needs of customers worldwide by delivering optimal solutions.
Advanced testing equipment, a strict quality control system, and effective inspection methods enable us to consistently provide high-quality products to customers worldwide.
In 2025, we supplied over 110,000 tons of products, providing our clients with reliable supply capacity and consistent on-time delivery.
OUR MISSION: Committed to delivering quality products, competitive pricing, and outstanding customer service worldwide.
Wide Application
Our products and customization service cover a wide range of industries, including Auto/automobile/automotive, car, truck/lorry, commercial vehicle, forklift/lifting/hoist equipment, combine harvester, farm/agricultural machinery, mining machinry, engineering machinery, construction/building machinery/vehicle(crane/hoist, excavator, bulldozer, dump/dumper/self-dumping/self-discharging truck, concret/cement mixer truck, pump truck, crusher...), petroleum/ petrochemical/oil drilling/metallurgical machinery, shipbuilding machinery, locomotive, bullet train, high-speed railway, underground/subway/metro, tractor, trailer, industrial equipment, marine/ship machinery(Turbine, propeller...), defense//military/ordnance equipment(Tank, armoured troop carrier, amphibious equipment...), power plant, wind power generator/tower, wind turbine, lift/elevator/escalator, medical equipment, food machinery, aviation equipment/instrumentation, pump, valve, gearbox, motor/engine, motorcycle, Lathe machine tools, …etc.
Explore more product applications on our Applications page.
Core Advantages
Our OEM automotive steel forgings deliver ultra-high dimensional accuracy, uniform material structure, and superior wear resistance, outperforming traditional cast parts in heavy-load automotive systems. Our integrated production chain ensures stable batch quality, while our source manufacturing capacity delivers a 5% to 10% cost advantage over intermediate traders for bulk orders.
Certifications