High-Performance Alloy Wheel Series: Batch 01
Verified under JWL, VIA, and SAE J2530 rigorous testing protocols. Engineered for luxury saloons, aggressive off-road overlanding, and staggered motorsport applications.
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Inquire Spec & PriceChina 3pc Forged Wheels B2B Wholesale Pricelist Matrix
Transparent baseline FOB valuation for Tier-1 automotive distributors, wheel brands, and tuning specialists. Values reflect genuine three-piece modular assemblies utilizing aerospace-grade 6061-T6 forged centers and spun aluminum outer/inner rim shells.
| Wheel Size (Diameter) | Center Disc Construction | Inner & Outer Rim Barrel Spec | Perimeter Hardware Option | Wholesale MOQ (Sets) | FOB China Unit Price (USD) | Production Lead Time |
|---|---|---|---|---|---|---|
| 18 Inch (18x8.0 – 18x12.0) | Forged 6061-T6 CNC Milled Flat / Mild Concave | Spun 6061 Aluminum, Raw / Anodized | Grade 12.9 High-Tensile Steel Bolts | 4 Sets (16 pcs) | $320 – $380 / pc | 15 – 20 Working Days |
| 19 Inch (19x8.5 – 19x12.5) | Deep Concave Monoblock-Milled Center | Mirror Polished Outer Lip + Satin Inner | Grade 12.9 Steel or Chrome Plated | 2 Sets (8 pcs) | $360 – $430 / pc | 18 – 22 Working Days |
| 20 Inch (20x8.5 – 20x13.0) | Extreme Concave / Directional Spoke Architecture | Step-Lip or Reverse Flat Lip, Brushed Anodized | Grade 5 Titanium Hardware (Ti-6Al-4V) | 2 Sets (8 pcs) | $410 – $490 / pc | 20 – 25 Working Days |
| 21 Inch (21x9.0 – 21x13.5) | Floating Spoke / High-Pad Big Brake Caliper Cut | Spun T6 Barrel, High-Sheen Ceramic Polished | Custom Coated Hidden or Exposed Bolts | 1 Set (4 pcs) | $480 – $570 / pc | 22 – 28 Working Days |
| 22 Inch (22x9.0 – 22x14.0) | Heavy-Duty High-Load SUV / Saloon Profile (950kg+) | Reinforced Flange Rim Outer, Custom Painted | Titanium or Grade 12.9 Stainless Hardware | 1 Set (4 pcs) | $540 – $660 / pc | 25 – 30 Working Days |
| 24 Inch (24x9.5 – 24x15.0) | Ultra-Luxury Flagship & Dually Widebody Design | Super-Deep Step Lip (Up to 7.0 Inch Outer) | Full Ti-6Al-4V Multi-Color Titanium Bolts | 1 Set (4 pcs) | $680 – $840 / pc | 28 – 35 Working Days |
Engineering Dominance of China's Advanced Forged Ecosystem
Why Tier-1 wheel brands and high-end automotive tuners migrate their multi-piece forged wheel production lines to state-of-the-art Chinese manufacturing hubs.
10,000-Ton Isothermal Forging
Unlike low-pressure casting or rotary flow-forming, 3pc forged centers begin as solid cylindrical billets of aerospace-grade 6061 aluminum. Utilizing multi-directional closed-die hydraulic presses exceeding 10,000 tons, the molecular grain structure of the alloy is continuously oriented along the contours of the mechanical stress vectors.
- Eliminates internal micro-porosity, casting voids, and crystalline dendritic fracturing.
- Yield strength exceeds 276 MPa; ultimate tensile strength reaches up to 310 MPa.
- Enables ultra-thin, structurally rigid spoke architectures that reduce unsprung rotational inertia.
5-Axis High-Speed CNC Milling
The geometric execution of bespoke 3-piece wheel designs demands dynamic simultaneous 5-axis tool paths. Chinese manufacturing clusters in Kunshan and Jiangsu incorporate high-precision Haas and DMG MORI machining centers, achieving tolerances within ±0.05 mm for critical assembly interfaces.
- Perimeter fastener bolt circle pitch (PCD) tolerance maintained within 0.02 mm.
- Back-pad pocketing and spoke side-milling reduce non-structural mass without compromising rigidity.
- Custom big-brake clearance profiles engineered per specific caliper dimensions (Brembo, Akebono, AP Racing).
Hermetic Multi-Piece Sealing
The primary engineering failure point of inferior multi-piece wheels is circumferential air leakage between the inner and outer rim halves. Rimax applies advanced aerospace elastomeric cure-in-place sealants under cleanroom conditions, backed by automated curing tunnels.
- Specialized high-elasticity polysulfide and silicone polymers withstand thermal cycling from -40°C to +150°C.
- Resistant to aggressive brake dust solvents, wheel cleaners, and sustained high tire pressures.
- Every assembled wheel undergoes 100% helium mass-spectrometry vacuum seal verification.
Structural Trends Reshaping the Global 3pc Forged Industry
Market demands are pivoting rapidly toward electrification dynamics, hybrid composite barrel assemblies, and agile low-volume hyper-customization.
EV Torque Dynamics
Battery Electric Vehicles (BEVs) exhibit instant torque delivery and increased gross vehicle weights (GVW). 3-piece wheels must now be engineered to sustain instantaneous torsional shock loads exceeding 1,000 Nm without rim barrel slip.
Carbon-Hybrid Modular Rims
The synthesis of forged 6061-T6 aluminum center discs with autoclave-cured pre-preg carbon fiber outer barrels represents the pinnacle of multi-piece engineering, slashing wheel assembly weight by an additional 35% compared to all-alloy units.
Aero-Disc Integration
Merging traditional multi-piece aesthetic deep-dish lips with functional aerodynamic carbon or forged aluminum flow-covers. Reduces aerodynamic drag coefficients (Cd) along the wheel arch while venting heat from carbon-ceramic brake systems.
Sustainable Aluminum Supply
Global regulatory mandates (EU CBAM and North American ESG reporting) prioritize low-carbon aluminum billets smelted using hydroelectric power, backed by documented Life Cycle Assessments (LCA) and scrap recycling loops.
Specialized Application Scenarios for 3pc Assemblies
Three-piece construction provides infinite combinations of inner barrel widths, outer lip depths, and mounting pad offsets that monoblock cast or flow-formed wheels physically cannot achieve.
Widebody Tuning & Negative ET
Bespoke coachbuilt body kits (Liberty Walk, Rocket Bunny, RWB Porsche) require radical negative offsets (ET -30 to -65) paired with extreme lip widths (5.0 to 8.0 inches). Three-piece modular assemblies allow millimeter-accurate wheel positioning flush with extended fender flares.
Exotic Supercar Homologation
Fitments for Ferrari, Lamborghini, McLaren, and Porsche GT models necessitate aggressive staggered diameters (e.g., 20-inch front, 21-inch rear) with high-pad mounting profiles to clear oversized 400mm+ carbon-ceramic brake discs without wheel spacer adapters.
Armored Vehicles & Extreme 4x4
High-security tactical sedans and luxury overlanding rigs (Lexus LX600, Toyota Land Cruiser 300, Defender 110) demand individual wheel load ratings exceeding 1,200 kg. Forged 3-piece heavy-duty assemblies ensure fail-safe performance during bead impact events.
Turnkey Global Sourcing & Compliance Engineering
How Shanghai Rimax Industry Co., Ltd. solves margin erosion, lead time volatility, and testing compliance for global wheel importers.
Private-Label Brand Incubation
We supply international distributors with comprehensive OEM/ODM manufacturing frameworks. Our industrial designers engineer unique spoke geometries, registered patent profiles, bespoke center caps with custom 3D badging, and consumer retail packaging tailored to regional markets.
JWL, VIA & TÜV Homologation
Every custom 3pc design undergoes finite element analysis (FEA) computer simulation prior to physical tooling. Physical production samples are validated against 13-degree impact tests, cornering fatigue dynamic tests, and radial fatigue bench evaluations in strict adherence to global safety codes.
Flexible Logistics & DDP Shipping
Whether sourcing single-set custom forged orders via expedited air freight or consolidated 40ft High Cube containers combining cast, flow-formed, and forged ranges, our Kunshan export logistics hub handles customs clearance, export declarations, and door-to-door delivery documentation.
Procurement & Engineering Inquiries
Direct technical answers addressing structural integrity, manufacturing tolerances, finishing durability, and B2B transaction terms.
What is the fundamental engineering advantage of 3pc forged wheels over 1pc monoblock forged wheels?
While 1pc monoblock forged wheels offer ultimate lightness, 3-piece modular wheels provide unmatched dimensional flexibility and cost-effective repairability. A 3pc design allows independent customization of outer lip depth, inner barrel width, and center disc offset. If an outer lip suffers curb abrasion or bend damage during motorsport use, it can be unbolted and replaced without discarding the expensive forged center disc.
What grade of aluminum billet does Shanghai Rimax utilize for 3-piece wheel fabrication?
We exclusively utilize certified prime aerospace-grade 6061-T6 aluminum billets. Chemical composition reports and ultrasonic flaw inspection certificates (EN 10204 3.1) are documented for every production heat batch, verifying strict compliance with silicon, magnesium, copper, and iron compositional thresholds to ensure optimal tensile and fatigue performance.
How does Rimax guarantee air pressure retention across modular 3-piece rim joints?
We deploy a multi-stage hermetic isolation protocol. Outer and inner rim barrel mating surfaces are machined with micro-groove sealant channels. High-modulus elastomeric aerospace sealants are applied under climate-controlled conditions, followed by torquing hardware to precise digital specifications (32–36 Nm for M8 Grade 12.9/Titanium). Finished assemblies undergo a 24-hour pressure decay inspection and submerged helium mass-spectrometer testing.
Can you manufacture custom bolt patterns (PCD) and center bores per individual customer specifications?
Yes. Because center discs are precision-milled from forged blanks on CNC centers, we program PCD configurations ranging from 4-lug (4x100, 4x114.3) to 5-lug (5x112, 5x120, 5x130), 6-lug (6x139.7), and center-lock racing setups. Center bores are cut to vehicle-hub-centric tolerances (within +0.03mm) to eliminate the requirement for aftermarket hub-centric rings.
What finish treatments are available for multi-piece outer lips and center discs?
Our surface treatment facilities support transparent and candy powder coatings, high-luster diamond-cut machine facing, ceramic mirror polishing, multi-directional hand brushing, electroplating chrome, and physical vapor deposition (PVD) finishes. All exterior coatings undergo 720-hour accelerated neutral salt-spray (NSS) testing to guarantee corrosion resistance against road salts and UV radiation.
What is the standard warranty coverage on Kipardo and Rimax 3-piece forged wheels?
Every 3-piece forged wheel is backed by an industry-leading 5-year / 100,000-kilometer structural warranty covering integrity against cracking, spoke failure, and mechanical defects, alongside a 2-year warranty covering surface paint adhesion, anodizing stability, and chrome finishes under normal automotive operating conditions.
High-Performance Alloy Wheel Series: Batch 02
Advanced forged, custom off-road, and luxury cast fitments engineered for international brand portfolios, regional distributors, and specialty builders.
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Inquire Spec & PriceInitiate Your Custom 3pc Forged Wheel Program
Connect directly with our engineering division in Kunshan, Jiangsu. Submit your CAD designs, vehicle fitment lists, or custom rim concepts to receive comprehensive 3D FEA stress simulations and volume wholesale quotes within 24 hours.