Automotive radiators

Description

1. Product Overview

This product is a high-performance automotive radiator engineered for forced convection heat exchange in internal combustion engine (ICE) and hybrid electric vehicle (HEV) cooling systems. Its primary industrial use is to dissipate excess engine heat, maintaining optimal thermal operating windows to prevent overheating, lubricant breakdown, and component fatigue. The key value proposition is superior thermal efficiency combined with corrosion resistance, offering extended service life under extreme load cycles. Strategically, as global vehicle parc ages and emissions regulations tighten thermal management standards, sourcing radiators with repeatable metallurgical consistency and pressure-cycle durability has become a non-negotiable supply chain imperative for OEMs and aftermarket distributors alike.

2. Key Specifications & Technical Characteristics

• Core Material Composition:

  • Tubes: 0.35mm–0.45mm brass or stainless-clad aluminum (3003/4343 alloy)

  • Fins: Corrugated aluminum (3102 alloy) with hydrophilic or anti-corrosion coating

  • Header/Tank: Glass-fiber reinforced PA66 (30% GF) or stamped brass (H68)

• Purity / Grade:

  • Coolant passage: Brazed joints achieving >98% leak-free integrity under 150 psi burst test

  • Brazing flux residue <5 mg/cm² (ASTM B487)

• Physical Characteristics:

  • Core thickness: 16mm–52mm

  • Fin pitch: 1.2mm–2.5mm (louvered or offset strip fin geometry)

  • Color: Black E-coat or bare aluminum with anti-oxidation clear coat

  • Dry weight range: 2.5–9.0 kg per unit

• Packaging Options:

  • Individual corrugated box + foam end caps (retail-ready)

  • Bulk palletized (36–48 units per pallet) with corner protectors

  • Export seaworthy crates (ISO 6780 compliant)

• Shelf Life: 5 years (unused, stored in dry warehouse at -30°C to 70°C)

3. Core Industrial Applications

• Primary Industries:

  • Automotive OEM assembly (passenger car, LCV, HCV)

  • Aftermarket replacement parts distribution

  • Heavy-duty trucking & bus fleets

  • Off-highway equipment (agricultural tractors, construction loaders, mining vehicles)

• Specific Operational Use Cases:

  • Stop-start urban delivery vehicles (reduces thermal cycling fatigue failure by 40%)

  • Towing/hauling applications (improved heat rejection at low airflow, e.g., 180% of standard load)

  • High ambient temperature markets (+45°C desert climates)

• Why This Product Performs Better than Alternatives:

  • Brazed tube-to-fin joints eliminate mechanical distortion seen with mechanically expanded radiators, maintaining heat transfer up to 15% longer.

  • Hydrophilic fin coating improves wetting and wicking in fan-assisted conditions → 8–12°C lower coolant exit temperature vs. uncoated fins.

  • Reinforced PA66 tanks withstand 30 psi cyclic pressure pulses (100k cycles), surpassing SAE J2682 by 25%.

4. Competitive Advantages

• Quality Consistency: ISO/TS 16949 certified production with 100% in-line leak testing (mass spectrometer, sensitivity 1×10⁻⁵ mbar·L/s). Lot-to-lot thermal performance variability < ±2.5%.

• Supply Reliability: Dual-source raw material mills (Asia & Europe). Safety stock of 50,000 units across 3 regional DCs. 98.5% on-time-in-full (OTIF) record over 24 months.

• Logistics Capability: Containerized loading with shock-watch indicators. Average transit damage rate <0.3% (industry average 1.2%).

• Price Competitiveness: Direct factory pricing reduces landed cost by 12–18% compared to tier-1 branded equivalents, with same OE-spec core geometry.

• Sustainability: Lead-free brazing process (no Pb, Cd, or Cr⁶⁺), 94% of aluminum weight recyclable via closed-loop shredding. Compliant with EU ELV Directive 2000/53/EC.

• Technical Support: Free thermal modeling (GT-SUITE or ANSYS Fluent) for custom vehicle integration. Full 2D/3D CAD drawings (STEP, IGES) available pre-purchase.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ):

  • Single SKU: 200 units

  • Mixed SKUs (up to 5 references): 500 units total

• Bulk (20 MT) Equivalent:

  • Approximately 2,200–2,800 units (depending on core size distribution)

• Loading Capacity (per 20ft dry container, standard palletization):

  • Net radiators: 1,600–2,400 units at 3.5–5.0 kg average unit weight

  • Gross container weight (including packaging): ≤ 19.5 MT (compliant with 20ft container max payload of 22 MT, leaving margin for safety)

  • Pallet configuration: 24 pallets (42” x 48”) per container, 65–100 units per pallet by SKU mix