A Custom Order Moves Through Visible Approval Gates
BOYAO leads custom wheel development and project coordination, working closely with leading Chinese factories specializing in forged aluminum wheel blank raw materials. Design reviews, production requirements, and project documentation are confirmed for each order to ensure alignment with approved drawings and technical specifications.
Review certifications & documentsEnd-to-End Custom Engineering Workflow
Every phase concludes with an explicit verification gate before proceeding to physical cutting or assembly.
Project Intake & Requirement Brief
Vehicle Data, Brake Profile & Design Direction
Client: Provide vehicle year/make/model/trim, brake setup (factory or BBK), target wheel diameter/width, and visual references.
BOYAO: Review application parameters against vehicle database, identify fitment risks, and issue an initial technical feasibility quotation.
- ✓Preliminary Fitment Feasibility Assessment
- ✓Transparent Price Quotation (FOB or Door-to-Door CIF/DDP)
- ✓Estimated Lead Time & Deposit Invoice
- ›Axle load rating requirements (SUV / Heavy-duty truck)
- ›Caliper clearance profile check
- ›Target tire size and rolling diameter compatibility
CAD Engineering & FEA Simulation
Finite Element Stress Analysis & Caliper Modeling
Client: Review 3D renders, confirm spoke aesthetics, and verify vehicle modifications (lowering springs, coilovers, widebody).
BOYAO: Engineer 2D structural blueprints and 3D CAD models. Run FEA stress simulations to optimize structural rigidity and back-pocketing weight reduction.
- ✓2D Precision Engineering Drawing (ET, PCD, CB, Backspacing)
- ✓3D Photo-Realistic Wheel Renders
- ✓FEA Structural Load & Stress Validation Report
- ›Cornering bending fatigue simulation
- ›Radial dynamic endurance simulation
- ›Brembo / AP Racing / Carbon Ceramic caliper clearance margin (≥3mm)
Written Specification Sign-Off
Formal Blueprint, Finish & Packaging Approval Gate
Client: Review every parameter on the 2D blueprint, sign the written approval document, and finalize finish/center-cap preferences.
BOYAO: Lock the master production file, allocate forged 6061-T6 aluminum billets, and queue the project into CNC 5-axis machining schedules.
- ✓Approved Production Drawing (Version Controlled)
- ✓Final Production Order Specification Sheet
- ✓Scheduled Factory Release Date
- ›Center bore hub-centric tolerance check (±0.02mm)
- ›Lug seat geometry (60° conical, ball seat, or flat mag seat)
- ›Custom center-cap / lip engraving artwork confirmation
5-Axis CNC Machining & Finishing
Aerospace Billet Carving & Multi-Stage Coating
Client: Await scheduled mid-production updates or video proofs upon request.
BOYAO: Execute CNC lathe turning, 5-axis high-speed milling, back-pocketing, hand-brushing/polishing, and electrostatic powder coating.
- ✓Machined Forged Wheel Blank
- ✓Finished Surface Treatment with Clearcoat Protection
- ✓In-Process Dimensional Inspection Log
- ›Radial and lateral runout tolerance (≤0.3mm)
- ›Dynamic balance optimization (≤15g)
- ›Surface coating thickness and adhesion cross-hatch test
Quality Verification, Packing & Export
CMM Inspection, Drop-Testing & Global Tracking
Client: Confirm final delivery address, arrange final balance payment, and track the international consignment.
BOYAO: Perform final CMM coordinate check, balance test, clean & inspect finish, wrap with triple protection, pack in reinforced cartons, and ship.
- ✓Pre-Shipment High-Resolution Inspection Photos & Videos
- ✓Certified Factory Inspection Quality Certificate
- ✓International Bill of Lading / Air Waybill (FedEx / UPS / DHL)
- ›100% CMM dimensional audit & bolt hole alignment
- ›Rim edge ring protectors and face shower caps installed
- ›Reinforced double-wall export carton sealing
Aerospace 6061-T6 Monoblock Milling
Our 5-axis CNC machining centers run continuous toolpaths that sculpt complex spoke geometry and deep concave profiles directly from 12,000-ton forged aluminum billets.
JWL, VIA & SAE Rigorous Testing Standards
Test methods, acceptance criteria and available reports depend on the wheel specification, manufacturing facility and target market. Confirm the applicable documents with BOYAO for your project.
13° IMPACT TEST
A heavy striker drops at a 13-degree angle onto the wheel rim flange to simulate severe pothole or curb strikes, verifying zero air loss, zero spoke fracture, and structural retention.
Impact Angle Protocol
CORNERING BENDING FATIGUE
A continuous rotational bending moment is applied to the wheel mounting hub for over 100,000 cycles, simulating high-speed track cornering and aggressive lateral g-forces.
Bending Load Cycles
RADIAL DYNAMIC ENDURANCE
The wheel and tire assembly is loaded against a rotating steel drum at 2.25x the vehicle's rated maximum payload for over 1,000,000 continuous revolutions.
Continuous Drum Revolutions
CMM COORDINATE AUDIT
Every machined wheel is inspected via multi-axis Coordinate Measuring Machines (CMM) to verify bolt pattern PCD runout, center bore concentricity, and bead seat geometry.
Radial Runout Tolerance
Ready to Submit Your Vehicle Specification?
Start Stage 01 by providing your vehicle model, brake clearance measurements, or design preferences. Our CAD engineers provide initial feasibility analysis in 1–2 business days.