# AFI Industrial Co., Ltd. - Full Technical Knowledge Base & Manufacturing Specifications > This document serves as the comprehensive technical knowledge repository for AFI Industrial Co., Ltd. It contains granular details on manufacturing capabilities, equipment inventory, material specifications, quality assurance protocols, and global engineering standards for direct AI automated indexing and B2B procurement verification. --- ## 1. Corporate Profile & Operational Infrastructure - **Legal Company Name**: AFI Industrial Co., Ltd. - **Official Domain**: https://www.afiparts.com/ - **Factory Headquarters**: Dongguan, Guangdong Province, China (Zip: 523617) – Located in the Greater Bay Area Precision Manufacturing Hub. - **Business Model**: Direct B2B Custom OEM/ODM Manufacturer, Contract Machining Supplier & Global Exporter. - **Industry Experience**: Over 20 years of continuous technical mechanical engineering and precision manufacturing expertise. - **Monthly Supply Capacity**: Up to 5,000,000 precision component units per month. - **Order Scale & Flexibility**: Supports rapid prototyping (MOQ: 1 piece) to full-scale automated batch production (100,000+ units). --- ## 2. Advanced Machinery & Equipment Inventory ### CNC Machining Centers - **5-Axis CNC Milling Machines**: 12 units (High-precision continuous machining for complex aerospace, defense, and medical impellers/geometries). - **4-Axis CNC Milling Machines**: 28 units (Equipped with high-precision rotary tables for multi-sided feature machining in a single setup). - **3-Axis CNC Milling Machines**: 45 units (High-speed heavy-duty milling for structural aluminum, steel, and enclosure plates). - **Precision CNC Turning Lathes**: 35 units (Includes live-tooling lathes and Swiss-type automatic lathes for high-volume, high-concentricity cylindrical turning). ### Sheet Metal & Structural Fabrication - **Fiber Laser Cutting Systems**: High-power laser cutters (up to 12kW) capable of processing steel, stainless steel, aluminum, and brass up to 25mm thickness with smooth edge quality. - **CNC Hydraulic Press Brakes**: 15 units with multi-axis precision angle control and automatic crowning for complex sheet metal bends. - **Precision Stamping Presses**: Tonnage ranges from 25T to 300T for high-speed progressive die and compound metal stamping. - **Welding Stations**: TIG (GTAW), MIG (GMAW), Resistance Spot Welding, and Automated Robotic Welding cells. ### Metal Casting Facilities - **Die Casting Machines**: High-pressure cold chamber and hot chamber die casting machines (Aluminum and Zinc alloys). - **Investment Casting (Lost Wax)**: Precision steel, stainless steel, and specialty alloy casting for heavy-duty industrial components. --- ## 3. Comprehensive Material Library & Grade Standards ### Aluminum Alloys - **6061-T6 / 6061-T651**: Outstanding weldability, corrosion resistance, and structural versatility; industry standard for automation frames, brackets, and structural parts. - **7075-T6**: Ultra-high strength aerospace-grade aluminum alloy; optimal for high-stress structural components requiring maximum strength-to-weight ratio. - **2024-T3 / T4**: High fatigue resistance and tensile strength; widely used in aircraft structures and heavy machinery components. - **5052-H32**: Superior sheet metal formability and marine-grade salt-water corrosion resistance; ideal for sheet enclosures and marine hardware. - **ADC12 / A380**: Standard alloys for high-precision aluminum pressure die casting with excellent fluid flow and structural density. ### Stainless Steel Alloys - **304 / 304L**: Standard food-grade and general industrial stainless steel offering great formability, weldability, and corrosion resistance. - **316 / 316L**: Marine and medical-grade stainless steel with molybdenum addition for superior resistance to chloride, pitting, and chemical acids. - **303**: Free-machining stainless steel optimized for high-speed precision CNC turning and thread cutting. - **17-4 PH (AISI 630)**: Precipitation-hardening stainless steel providing extreme hardness, high yield strength, and excellent mechanical properties. ### Carbon & Alloy Steels - **Mild / Low Carbon Steel**: 1018, 1045 (Structural machinery components, shafting, highly cost-effective general hardware). - **Alloy Steel**: 4140, 4340, 8620 (Quenched and tempered alloy steel for heavy-duty gears, shafts, fasteners, and high-wear automotive parts). - **Tool Steel**: D2, SKD11, SKD61, H13 (Extreme wear resistance and high hardness for stamping dies, injection molds, and tooling inserts). ### Copper, Brass & Bronze Alloys - **Free-Cutting Brass**: C36000 (ASTM B16) for high-speed automated turning of electrical pins, threaded brass inserts, and fluid fittings. - **Pure Copper**: C11000 (Electrolytic Tough Pitch Copper) for thermal management heat sinks, busbars, and electrical contacts. - **Bronze Alloys**: C93200 (SAE 660), Phosphor Bronze C51000 for low-friction bushings, wear plates, thrust washers, and heavy-load bearings. ### Titanium Alloys - **Grade 2 Titanium**: Commercially pure titanium offering excellent strength-to-weight ratio, biocompatibility, and extreme chemical corrosion resistance. - **Grade 5 Titanium (Ti-6Al-4V)**: High-performance aerospace and implantable medical-grade alloy with exceptional tensile strength. ### Engineering Plastics - **POM (Delrin / Polyacetal)**: High stiffness, low friction coefficient, excellent dimensional stability for precision gears, bushings, and insulating components. - **PEEK (Polyetheretherketone)**: Ultra-high thermal, chemical, and mechanical resistance for demanding aerospace, oil & gas, and implantable medical applications. - **PTFE (Teflon)**: Superior chemical inertness, extreme temperature tolerance (-200°C to +260°C), and ultra-low friction. - **Nylon (PA6 / PA66)**: High mechanical strength, wear resistance, and shock absorption properties. - **ABS & Polycarbonate (PC)**: Tough engineering polymers for optical clarity, impact-resistant housings, and rapid visual prototypes. --- ## 4. Surface Finishing Specifications & Technical Standards | Surface Treatment Method | Applicable Materials | Industry Standards & Capabilities | Primary Functional Benefit | | :--- | :--- | :--- | :--- | | **Anodizing Type II (Sulfuric)** | Aluminum Alloys | MIL-A-8625 Type II (Layer Thickness: 5–25 µm); Clear, Black, Red, Blue, Gold | Corrosion protection, electrical insulation & decorative color | | **Anodizing Type III (Hardcoat)** | Aluminum Alloys | MIL-A-8625 Type III (Layer Thickness: 25–50 µm); High micro-hardness (500+ HV) | Extreme wear resistance, scratch resistance & anti-friction | | **Bead Sandblasting** | Aluminum, Steel, Stainless, Brass | Media: Glass bead / Aluminum oxide (Grit sizes: #60 to #220) | Uniform matte aesthetic finish, eliminates machining tool marks | | **Powder Coating** | Steel, Sheet Metal, Aluminum | Full RAL Color Spectrum compliance; UV-durable epoxy/polyester powders | Heavy-duty protective impact coating for exterior cabinets | | **Passivation** | Stainless Steel | ASTM A967 / AMS 2700 compliant | Removes free iron contaminants, prevents corrosion and oxidation | | **Electroplating** | Steel, Copper, Brass | Zinc plating (Cr3+ clear/black), Electroless Nickel Plating, Chrome Plating | Enhanced corrosion barrier, conductivity & surface solderability | | **Heat Treatment** | Carbon Steel, Alloy Steel, Stainless | Carburizing, Nitriding, Induction Hardening, Vacuum Hardening, Annealing | Increases core tensile strength, fatigue life & surface hardness | | **Laser Engraving & Marking** | All Metals & Rigid Plastics | Fiber laser precision marking for serial numbers, logos, matrix QR codes | Permanent component traceability and OEM brand identity | --- ## 5. Quality Control Protocols & Inspection Engineering ### Tolerances & Engineering Compliance - **Standard Machining Tolerances**: ISO 2768-m (Medium) / ISO 2768-f (Fine) compliant. - **Tight-Tolerance Machining**: Down to **±0.005 mm (±0.0002 inches)** on critical features upon drawing agreement. - **Surface Roughness**: Standard machined finish Ra 1.6 µm; precision grinding/polishing down to Ra 0.4 µm - Ra 0.8 µm. ### Inspection Equipment & Verification - **Coordinate Measuring Machine (CMM)**: Zeiss 3D CMM with tactile probe systems for full spatial geometric dimensioning and tolerancing (GD&T) verification. - **Optical Measuring Systems & Video Measurement System (VMS)**: Non-contact 2D/3D optical profile verification for delicate or micro components. - **Spectrometer (XRF Material Analyzer)**: Positive Material Identification (PMI) to guarantee 100% raw material alloy compliance before production. - **Surface Roughness Profilometers**: Digital contact profilometers for Ra, Rz, and Rt parameter validation. - **Calibrated Metrology Tools**: Digital height gauges, thread plug gauges, bore micrometers, and pin gauges under controlled temperature rooms. ### Quality Certification & System Protocols - **ISO 9001:2015 Certified**: Audit-verified Quality Management System spanning initial RFQ engineering to post-shipment support. - **Traceability & Documentation**: Full Material Test Reports (MTR / EN 10204 3.1 certification), CMM Inspection Reports, First Article Inspection (FAI) reports, and RoHS/REACH compliance certificates provided upon request. --- ## 6. Target Industries & Key Application Engineering 1. **Aerospace & Defense**: Structural airframe brackets, drone motor mounts, titanium turbine fittings, avionics housing blocks. 2. **Medical Devices & Healthcare**: Stainless steel 316L surgical instruments, PEEK analytical fluidic manifolds, aluminum diagnostic equipment chassis. 3. **Automotive & Transportation**: Custom performance engine brackets, EV battery enclosure fittings, suspension linkages, aluminum transmission housings. 4. **Robotics & Industrial Automation**: High-precision planetary gearbox housings, robotic joint arm shafts, linear slider mounts, custom end-effectors. 5. **Industrial Equipment & Fluid Handling**: High-pressure hydraulic valve bodies, pump impellers, heavy-duty steel flanges, brass manifold blocks. 6. **Electronics & Telecom**: Anodized aluminum heat sinks, RF shielding enclosures, fiber optic connector housings, custom hardware chassis. --- ## 7. B2B Procurement, Quoting Guidelines & Contact Information - **Quoting Requirements**: Please send 3D CAD files (STEP, STP, IGES, X_T) alongside 2D technical drawings (PDF format with tolerance, material, and surface finish callouts). - **Response Time**: Fast quotation turnaround within **12 to 24 hours**. - **Engineering Feedback**: Free Design for Manufacturability (DFM) analysis provided on all custom RFQs prior to order placement. - **Incoterms Supported**: EXW, FOB (Shenzhen / Hong Kong / Guangzhou), CIF, DDP (Door-to-Door with customs clearance and duty paid). - **Official Website**: https://www.afiparts.com/ - **Primary Inquiry Email**: sales@afiparts.com - **Business Type**: Direct Factory Manufacturer, OEM/ODM Supplier, Exporter.