Engineered Low-Pressure Cast & Multi-Piece Wheel Series
Direct-from-foundry casting solutions configured for extreme radial endurance, dynamic balance, and precise wheel-arch fitment across passenger sedans, performance platforms, and heavy-duty 4x4 offroad trucks.
Low-Pressure Casting (LPDC) Metallurgy & Industrial Foundations
Deconstructing the thermodynamic advantages, microstructural density, and grain refinement mechanisms that establish Low-Pressure Die Casting (LPDC) as the definitive automotive benchmark for safety, performance, and volume viability.
Directional Solidification
Unlike standard gravity casting, LPDC forces molten A356.2 aluminum upwards against gravity via controlled pneumatic pressure (0.2 to 1.0 bar). This laminar bottom-up feeding minimizes gas entrainment, suppresses micro-porosity, and guarantees consistent directional solidification toward the feeder riser.
Al-Si-Mg Microstructure
By strictly managing the eutectic silicon particle morphology through strontium (Sr) modification and titanium-boron (Al-Ti-B) grain refinement, LPDC delivers secondary dendrite arm spacing (SDAS) below 30 µm, resulting in superior yield strength and ultimate elongation before mechanical fatigue.
T6 Heat Treatment Matrix
Every wheel blank undergoes automated solution heat treatment at 535°C (±5°C), rapid water quenching in under 12 seconds to prevent premature precipitation, and artificial aging at 155°C for 6 hours. This process unlocks optimal tensile yield (>205 MPa) and dynamic impact absorption.
B2B Low-Pressure Cast Wheel Pricelist Architecture
Direct wholesale benchmark estimates based on raw primary A356.2 aluminum pricing, standardized mold amortization parameters, and automated CNC tooling schedules. Real-time contracts are indexed to LME cash settlements.
| Dimension Range | Wheel Category | Standard Finishes | Typical Load Index | MOQ / Tooling Basis | Target FOB Unit Price (USD) |
|---|---|---|---|---|---|
| 15" – 16" Diameter Width: 6.0J – 7.5J |
Passenger Sedans & Compact Fleet | Gloss Black, Hyper Silver, Machined Lip | 580 kg – 690 kg | 60 Pcs per PCD / Existing Tooling | FOB Ningbo/Shanghai $28.50 – $38.00 |
| 17" – 18" Diameter Width: 7.5J – 9.0J |
CUV, Sport Sedan & OE Replacement | Full Polished, Diamond Cut Face, Matte Bronze | 690 kg – 850 kg | 60 Pcs per PCD / Tooling: $2,800 | FOB Ningbo/Shanghai $41.00 – $56.50 |
| 19" – 20" Diameter Width: 8.5J – 10.5J |
Executive EV, Luxury SUV & Tuning | Tinted Clear, Gloss Anthracite, Custom PVD | 850 kg – 1,050 kg | 80 Pcs per PCD / Tooling: $3,600 | FOB Ningbo/Shanghai $62.00 – $84.00 |
| 17" – 20" HD 4x4 Width: 8.5J – 12.0J |
Heavy-Duty Pickup, Overlanding & Trail | Satin Black Beadlock Look, Milled Spokes, Candy | 1,100 kg – 1,450 kg (JWL-T) | 60 Pcs per PCD / Tooling: $3,400 | FOB Ningbo/Shanghai $58.00 – $89.00 |
| 21" – 24" Large Frame Width: 9.5J – 11.5J |
Full-Size Truck, Escalade, LC300 | Brushed Clear, Gloss Black Machined, Chrome | 1,000 kg – 1,350 kg | 100 Pcs per Spec / Tooling: $4,500 | FOB Ningbo/Shanghai $95.00 – $145.00 |
*Note: Pricing subject to fluctuations in London Metal Exchange (LME) aluminum ingot indices and USD exchange ratios. Custom forging alternatives (6061-T6 monoblock / multi-piece) quoted upon request.
Macro Trade Dynamics & Global Supply Chain Optimization
Evaluating shifting macroeconomic policies, anti-dumping tariffs, container logistics, and total cost of acquisition (TCO) across major automotive hubs including North America, the European Union, Australia, and GCC nations.
Tariff Mitigation & Cross-Border Compliance
Navigating evolving regulatory environments such as US Section 301 tariffs, EU anti-dumping duties on aluminum wheels, and GCC GSO standards requires strategic origin certification and accurate HS code classification (HS 8708.70). Rimax operates strict supply documentation, verified mill test certificates (MTC), and bilateral trade agreements to streamline customs clearance and protect distributor margins against sudden border taxation shifts.
FCL Packaging & Ocean Freight Cube Utilization
Maximizing container utilization directly reduces per-wheel landing costs. Our engineering department uses automated 3D parametric carton calculation software. A standard 40ft High Cube container accommodates between 1,400 to 1,900 cast wheel units depending on face offset and rim width, leveraging reinforced double-wall corrugated cartons, EPE foam edge rings, non-woven shower caps, and moisture-absorbing desiccant packs.
Localized Engineering Use Cases & Fitment Paradigms
Tailoring spoke thickness, hub face offset, and brake-caliper back-spacing to solve real-world mechanical demands across different automotive segments.
Electric Vehicles & Aerodynamic Efficiency
Heavy battery packs elevate curb weight, while instant electric torque creates high torsional shear at the wheel hub. Our LPDC EV series incorporates closed-surface aero-spokes to reduce turbulence, drop drag coefficients (Cd), and suppress cabin harmonic resonance, while maintaining a minimum 950 kg static wheel rating.
4x4 Off-Road & Commercial Overlanding
Designed for platforms like Lexus GX460, Toyota Land Cruiser, and Ford Raptor. We reinforce the spoke junction fillets and add diamond-knurled bead seats to prevent tire slippage during low-pressure rock crawling. Rated to JWL-T standards with test impact thresholds over 1,400 kg.
Retail Aftermarket & Tuner Customization
Modern retail buyers demand aggressive concavity, high brake-caliper clearance for multi-piston aftermarket kits, and durable aesthetics. We support multi-step finishing: mirror diamond cutting, brushed titanium anodizing, and multi-piece forged styling at accessible cast pricing.
Regulatory Compliance & Non-Destructive Testing (NDT)
How Shanghai Rimax Industry Co., Ltd. protects importers and wheel brands against product liability via rigorous testing protocols matching JWL, VIA, SAE J2530, and ISO 3006 criteria.
Radial Fatigue Run
Wheels rotate under constant radial load (1.5x - 2.0x design rating) for 500,000 to 1,000,000 continuous cycles to verify barrel fatigue resistance.
Dynamic Cornering
Applying high cyclical bending moments directly to the wheel hub simulates extreme cornering g-forces without developing spoke base fractures.
13° / 30° Impact Test
Drop-hammer impact on tire-rim assemblies verifies impact absorption, ensuring the wheel deforms safely without rapid air loss or brittle fracture.
Salt Spray & Air-Leak
Full-immersion helium leak detection catches microporosity, while 1,000-hour CASS salt spray chambers ensure long-lasting finish protection.
Foundry Next-Gen: High-Vacuum Casting, AI NDT & Circular Green Alloys
Investing in casting technology: the manufacturing evolution from standard low-pressure systems to sustainable, data-driven production lines.
High-Vacuum Counter-Pressure Casting (HV-CPC)
Integrating high-vacuum systems inside the mold cavity removes internal air backpressure, lowering dissolved hydrogen to under 0.10 cm³/100g Al. This matches forging-grade ductility while preserving the design versatility of casting.
Flow-Forming Hybridization (Rotary Forged Barrels)
Combining LPDC centers with rotary hydraulic flow-forming for the rim barrel. Hydraulic rollers compress and stretch the barrel section, improving grain density and reducing weight by 12% to 18% compared to standard cast rims.
AI-Powered Automated Defect Recognition (ADR)
Moving beyond manual radioscopy: our inline continuous 360° X-ray machines use deep-learning computer vision models trained on millions of scan profiles to identify, classify, and reject sub-surface voids down to 0.2mm in real time.
Closed-Loop Recycled Primary Ingot Utilization (Eco-Alloy)
Switching toward certified low-carbon aluminum smelted with renewable hydro-power, combined with an internal 100% closed-loop recycling program for clean machining swarf and gating risers, cutting embodied carbon emissions by over 55% per wheel.
Frequently Asked Questions: Global Sourcing & Engineering
Direct technical answers to common queries from automotive procurement directors, brand owners, and industrial importers.
What is the key metallurgical difference between Low-Pressure Casting (LPDC) and Gravity Casting?
Gravity casting relies solely on gravity to fill the mold, which can trap air and cause turbulence, leading to micro-shrinkage in the spoke hubs. Low-Pressure Die Casting (LPDC) uses regulated pneumatic pressure to drive molten aluminum upwards into the cavity. This results in stable, progressive solidification from bottom to top, creating a denser grain structure, fewer internal voids, and roughly 15% higher tensile strength after heat treatment.
How do you guarantee batch-to-batch dimensional accuracy across bolt patterns (PCD) and center bores?
We machine every wheel on dedicated multi-axis CNC cells in a single clamping step. The bolt pitch circle diameter (PCD), center bore (CB), and wheel mounting pad are cut together, keeping radial and lateral runout within 0.30 mm. Optical coordinate measuring machines (CMM) verify dimensions on every production shift.
Can Rimax engineer and manufacture proprietary private-label wheel designs?
Yes. Over 60% of our capacity goes to OEM and private-label programs. We support clients from initial 2D styling sketches through parametric 3D CAD modeling, FEA stress simulation, rapid prototyping, and steel mold tooling. We also handle custom central hub caps, laser-etched rim branding, and customized cartons.
What structural and finish warranties protect bulk export shipments?
Every Kipardo and Rimax low-pressure cast wheel is backed by a 5-Year / 100,000 km structural warranty against material failure or casting defects, plus a 2-Year warranty on painted, powder-coated, and machined surfaces against peeling or premature corrosion under normal operating conditions.
What is the standard production lead time for an FCL container order?
For existing tooling, production takes 35 to 45 calendar days from deposit receipt and technical specification sign-off. For custom designs requiring new casting molds, tooling creation and initial sample approval add roughly 30 to 40 days before full volume production begins.
Ready to Scale Your Alloy Wheel Program?
Contact our engineering desk for tailored pricelists, custom mold consultations, and full container volume discounts.
High-Payload Off-Road, Luxury Forged & Flow-Formed Hub Catalog
Review our specialized configurations for commercial fleet operators, luxury conversions, and motorsport fitments. All SKUs are fully validated to international JWL, VIA, and SAE standards.
