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Primary Lineup
Engineered Concave & Offroad Series
Precision-machined forged and low-pressure cast configurations engineered for extreme torque threshold, dynamic brake clearance, and high static load parameters.
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Metallurgical Supremacy
Deep Concave Geometry vs. Radial Dynamic Stress
Deep concave forged wheels demand vastly superior structural engineering compared to conventional flat-faced rims. Extending the spoke drop toward the hub barrel exponentially increases torsional and cornering load moments at the spoke-rim junction.
10,000-Ton Isothermal Forging
Utilizing high-grade aerospace 6061-T6 aluminum blanks, our multi-directional closed-die forging reorganizes metallic grain flows continuously along the radical concave trajectory. This eliminates the porosity inherent in cast alternatives and bolsters grain density, escalating yield strength above 310 MPa and tensile thresholds past 350 MPa.
FEA Calibrated Center Drop
Every extreme concave blueprint undergoes comprehensive finite element analysis (FEA). By calculating lateral displacement vectors under maximum dynamic load scenarios, our engineers optimize back-pad pocketing and spoke cross-sections. This guarantees exceptional caliper clearance for high-performance ceramic systems without adding unneeded rotational mass.
Rotational Mass Reduction
Unsprung weight directly degrades vehicle dynamic response and damper responsiveness. Our aggressive side-milling processes remove inert material from non-stress regions, reducing rotational inertia by up to 28% compared to standard aftermarket aluminum units, markedly sharpening steering feedback and accelerating torque transfer.
Industrial Ecosystem
China's Precision Manufacturing & Global Supply Chain Scale
Sourcing deep concave forged wheels demands raw metallurgical consistency, cutting-edge tooling availability, and agile scaling. Rimax leverages Kunshan and Yangtze River Delta industrial clusters to optimize cost and turnaround time.
Vertical Integration
Direct supply partnerships with tier-one primary aluminum refiners yield fully traceable, virgin A356.2 and 6061 billet alloy with ultra-low iron inclusion rates, protecting internal purity before thermal processing starts.
Advanced 5-Axis CNC Banks
Our facility houses high-precision Japanese and German 5-axis machining centres calibrated to tolerances under ±0.02 mm, allowing complex, aggressive concave spoke beveling and deep hub undercuts without manual tooling adjustments.
Rapid Prototype-to-FCL
Digital 3D CAD modeling to physical billet milling cycle is compressed into 14 business days, driving down sample validation cycles for overseas importers, automotive distributors, and bespoke wheel labels.
Custom Surface Finishing
In-house computerized automated anodizing, micro-brushed hand-polishing, PVD physical vapor deposition, and double-dark tinted clear coats ensure corrosion-resistant surface coatings matching OE showroom standards.
International Certification
Strict Regulatory Engineering & Global Compliance
Concave configurations alter stress lines toward the perimeter barrel. Sourcing from our verified factory shields B2B importers against structural failure liabilities through comprehensive certification testing.
100K+
Rotary Fatigue Revolutions
13°
Bi-Axial Impact Validated
1,500hr
CASS Salt-Spray Resilience
100%
X-Ray & Helium Leak Tested
JWL / VIA Verification
Stringent dynamic cornering tests verify that radial spoke structures endure sustained torsional deflection without cracking or microscopic yielding across extended cycles.
TÜV Structural Match
Engineered for European aftermarket import homologation, meeting stringent German KBA road regulations regarding hub loads, offset tolerances, and anti-fatigue reserves.
SAE J2530 North America
Standardized testing metrics covering radial fatigue, cornering fatigue, and curb strike resistance ensure complete technical conformity with North American US DOT specifications.
Commercial Execution
Procurement Scenarios & Application Architecture
Modern automotive sectors require distinct fitment philosophies. Our engineering teams accommodate flexible load indices and PCD variations across luxury, commercial, and performance platforms.
Tier-1 Wholesalers & Distributors
Optimized for high-volume containerized procurement. Consolidate cast, flow-formed, and fully custom 1-piece, 2-piece, and 3-piece forged concave lines within mixed containers to maximize warehouse stock turnover and dealer margins.
Bespoke Tuning Brands & Private Labels
Turnkey private-label manufacturing: We execute your distinct styling ideas, machine custom branded billet center caps, apply laser-engraved rim flanges, and supply customized, drop-test-certified packaging.
High-Torque EV & Armored Vehicles
The heavy weight and instant torque delivery of modern electric vehicles, along with the high payload requirements of armored SUVs, demand reinforced hub flanges and load ratings exceeding 1,250 kg per corner—all standard in our forged portfolios.
Technical Matrix
Engineering Taxonomy: Cast vs. Flow-Formed vs. Monoblock Forged
Objective engineering metrics to help B2B buyers select the right production process based on weight requirements, tensile profiles, and project targets.
| Evaluation Parameter | A356.2 Low-Pressure Cast | Rotary Flow-Formed | 6061-T6 Monoblock Forged |
|---|---|---|---|
| Primary Raw Ingot | A356.2 Liquid Aluminum | A356.2 Pre-form Alloy | Aerospace Billet 6061-T6 Plate |
| Concave Angle Potential | Moderate (Tooling Draft Angle Restricted) | Moderate to High (Profile Limited) | Maximum Aggressive (3D 5-Axis Unbound) |
| Ultimate Tensile Strength | ~220 - 250 MPa | ~280 - 310 MPa | ≥ 350 - 380 MPa |
| Grain Structure | Cast Dendritic Porous | Elongated, Compressed Rim Wall | Continuous Dense Micro-Grain Flow |
| Weight Reduction Baseline | Benchmark Baseline | 12% - 18% vs. Cast | 25% - 32% vs. Cast |
| Tooling & Mold Amortization | High Initial Mold Sunk Cost | Moderate Wheel Tooling Cost | Zero Mold Cost (CNC Programming Direct) |
| Ideal Commercial Fit | High-Volume OE Replica & General Retail | Enthusiast Performance Retail | Ultra-Luxury, Supercar & Offroad Race |
Market Trajectory
Emerging Trends Shaping Deep Concave Manufacturing
Key design and manufacturing shifts influencing the high-end aftermarket wheel segment through 2026 and beyond.
Aerodynamic Concave Integration
Merging radical spoke drops with aerodynamic channel rings helps reduce drag on electric and hybrid powertrains, preserving vehicle range while delivering an aggressive stance.
Eco-Anodizing & Low-VOC Coatings
Global environmental mandates are accelerating a shift toward clean powder clear-coats, trivalent chromium plating alternatives, and closed-loop anodizing tanks that meet EU RoHS standards.
Parametric Generative Milling
AI-driven generative design models shave excess aluminum from the center hub and spoke pockets, maximizing structural stiffness while introducing sharp, geometric lines across the outer face.
Direct Clarification
B2B Procurement & Engineering FAQ
Technical, logistical, and production answers for commercial buyers, importers, and brand managers.
How does Rimax ensure brake clearance with extreme concave profiles?
Every engineering blueprint starts from the vehicle's 3D brake envelope. We adjust the spoke profile curvature, hub pad thickness, and drop center position to ensure generous clearance for large 6-pot and 8-pot brake calipers while maintaining deep concavity.
What is the minimum order quantity (MOQ) for custom forged orders?
Because forged wheels are CNC machined directly from solid 6061-T6 billet blanks without expensive casting mold tooling, our MOQ is just 4 pieces (1 car set) for bespoke forged configurations, and 60-100 pieces per mold for cast production runs.
What testing data is supplied with commercial production batches?
Each production run includes comprehensive JWL/VIA-aligned testing documentation: spectroscopic chemical composition analysis, radial fatigue records, cornering moment curves, 13-degree impact results, and dimensional CMM inspection reports.
What warranty protection is provided for commercial programs?
All Rimax Kipardo wheels are backed by a 5-year / 100,000 km structural warranty against material cracking, grain separation, and manufacturing defects, alongside a 2-year finish warranty covering paint adhesion, clear coat, and anodized surfaces.
Extended Catalog
Custom Multi-Piece & Luxury Fitments
Browse our modular multi-piece assemblies, precision monoblock wheels, and specialized PCD offroad fitments engineered for high-end automotive markets.
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