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Product Details

Production Process: Core CNC Bending + Thermal-Optimized Auxiliary Processes

We take precision CNC bending as the core process for aluminum housing for heat sink, matching with thermal performance-oriented auxiliary technologies to form a full-cycle production chain, ensuring products meet the strict thermal dissipation and assembly requirements of different industries:

  • Core CNC Bending Technology: Equipped with 20+ sets of high-performance CNC bending equipment (35 tons–400 tons) with intelligent angle compensation systems. This equipment is optimized for the physical properties of aluminum alloys (lightweight, good ductility), achieving bending precision of ±0.5°, angle repeatability of ±0.1°, and effectively avoiding material deformation and surface scratches. It can flexibly process complex shapes (U-type shell, L-type baffle, integrated folded edge) suitable for different heat sink structures, and adapt to aluminum materials with thicknesses of 1.0mm–8.0mm, ensuring the flatness of the heat dissipation contact surface and tight fit with heat sink cores.

  • Auxiliary Processes: To enhance thermal performance and service life, we provide targeted auxiliary processes: pre-processing includes high-precision laser cutting (for aluminum sheet blanking, ensuring dimensional accuracy of heat dissipation windows and mounting holes) and CNC milling (for precise machining of assembly slots and threaded holes); post-processing focuses on professional surface treatment (optimizing thermal conductivity while enhancing corrosion resistance). The integrated process layout shortens production lead times and ensures consistent quality of batch products.


Product Classification by Industry, Material & Part Type

Applicable Industry

Aluminum Material Type

Aluminum Housing for Heat Sink Type

Electronic Equipment Industry

6063 Aluminum Alloy (Excellent Thermal Conductivity)

Power Supply Heat Sink Housing, LED Driver Heat Sink Shell, Server Heat Dissipation Housing

New Energy Vehicle Industry

6061 Aluminum Alloy (High Strength & Thermal Conductivity)

EV Battery Heat Sink Housing, Motor Controller Heat Dissipation Shell, On-Board Charger Heat Sink Housing

Industrial Automation Industry

5052 Aluminum Alloy (Corrosion Resistance & Ductility)

Frequency Converter Heat Sink Housing, Industrial Inverter Heat Dissipation Shell, Sensor Heat Sink Housing

Automotive Electronic Industry

6061/6063 Aluminum Alloy

Automotive Air Conditioning Compressor Heat Sink Housing, Engine Control Unit (ECU) Heat Dissipation Shell


Key Technical Parameters (Precise & Customizable)

Parameter Category

Specification

Remarks (Application & Explanation)

Processing Precision

Bending Precision: ±0.5°; Angle Repeatability: ±0.1°; Overall Dimensional Tolerance: ±0.1mm–±0.4mm; Hole Position Tolerance: ±0.15mm

Verified by Coordinate Measuring Machine (CMM) to ensure tight fit with heat sink cores and assembly accuracy; guarantees stable heat transfer

Material Range

6061 Aluminum Alloy, 6063 Aluminum Alloy, 5052 Aluminum Alloy, 1050 Aluminum Alloy

6061/6063 for high thermal conductivity & strength (new energy/industrial); 5052 for corrosion resistance (humid environments); 1050 for ultra-high thermal conductivity (precision electronics)

Surface Treatment Options

Anodizing (Black/Silver, Hard Anodizing Optional), Powder Coating (Heat-Dissipating Type), Chemical Conversion Coating, Natural Finish

Anodizing enhances thermal conductivity & corrosion resistance (recommended for most scenarios); heat-dissipating powder coating for high-temperature industrial applications

Minimum/Maximum Dimensions

Minimum: Length 80mm × Width 40mm × Height 20mm; Maximum: Length 1200mm × Width 500mm × Height 300mm

Covers small precision electronic heat sinks to large industrial inverter heat sinks; customizable for non-standard heat sink sizes

Production Cycle

Sample: 5–7 workdays; Small Batch (100–500pcs): 8–15 workdays; Mass Production (≥1000pcs): 12–25 workdays

Adjustable based on order complexity; urgent orders for new energy vehicle/electronic equipment projects supported with priority production


Our Core Competitiveness (Data-Driven & Credible)

1. Professional Technical Team: 15+ senior engineers with 10+ years of experience in aluminum heat sink housing manufacturing; 24-hour technical support for custom design optimization (thermal structure simulation, bending process optimization); 6–10 workdays for custom mold development, specializing in solving thermal compatibility and bending deformation problems.

2. Strong Production Capacity: 20+ sets of 35–400 tons CNC bending equipment paired with 20+ supporting laser cutting/CNC milling machines; annual production capacity of 4 million+ aluminum heat sink housings; 99% on-time delivery rate for global orders.

3. Strict Quality Management System: Full-process quality control (aluminum material composition analysis → in-process bending precision & surface quality monitoring → final thermal conductivity & dimensional verification); 99.8% product qualification rate; certified with ISO 9001:2015 and IATF 16949 (for automotive parts).

4. Integrated Supply Chain: Long-term strategic cooperation with certified aluminum suppliers (e.g., Chalco, Zhongwang Group); independent purchasing and processing chain ensures stable supply of high-purity aluminum materials and cost advantage; raw material traceability rate 100%.

5. Global Shipping & Reliable After-Sales: Professional foreign trade team proficient in FOB/CIF/DAP/EXW terms; cooperate with DHL/FedEx/Maersk for worldwide door-to-door delivery; complete customs clearance documents (including material certification, IATF 16949 certificate) provided. 24-hour after-sales response to technical and quality inquiries.


Credibility Highlights

  • Served 260+ B2B clients across 40+ countries (Europe, North America, Southeast Asia, Japan, South Korea), including 20+ global well-known electronic component and new energy vehicle manufacturers.

  • Production process visualization: Provide factory live videos and aluminum heat sink housing production process recordings upon request; ISO/IATF-certified workshop welcomes on-site audits to verify production capacity, quality control and thermal performance testing capabilities.

  • Third-party certification: SGS/TUV test reports available for aluminum material composition, bending strength, thermal conductivity and surface treatment performance; full raw material traceability certificates and batch test reports provided for every order.

  • Long-term strategic supplier for major new energy vehicle and server manufacturers; maintained 0 defect feedback for 4 consecutive years in aluminum heat sink housing cooperation, highly recognized for product thermal compatibility and structural precision.

Send your aluminum housing for heat sink drawings (CAD/STEP/IGES files) or detailed requirements (heat sink type, thermal performance requirements, size, industry) now! We will provide a personalized process scheme, quotation and sample plan within 24 hours.


FAQ

Q1: How do you ensure quality?

A: We have a fully equipped quality inspection center, complete testing equipment, and a strict ISO 9001 quality management system. Each sheet metal stamping part is tested for dimensions, mechanical properties, and surface finish before delivery to ensure stable quality and compliance with international standards.

 

Q2: What are the prices of the Sheet Metal Stamping Parts?

A: Prices depend on several factors, including raw materials, tolerances,  surface treatments, and order quantity. Since Xinlongji Metal  owns and manages integrated stamping factories, we can provide competitive real-time quotations while maintaining stable product quality for every batch of custom sheet metal parts.

 

Q3: How can I get a better price?

A: All our prices are based on high-quality standards. With the same material and precision, our sheet stamping parts are more cost-effective because of supply chain integration. Larger orders or long-term cooperation projects can help you obtain even better prices and stable supply support.

 

Q4: What's the MOQ for Sheet Metal Stamping Parts?

A: MOQ depends on product size, complexity, and raw material type. You can send us 2D or 3D drawings, and we will evaluate production feasibility and confirm the MOQ. Xinlongji Metal guarantees flexibility for trial runs and supports small batches for initial testing.

 

Q5: What is your delivery cycle?

A: Delivery time is typically around 30 days. Complex parts or larger orders may require slightly longer schedules. Our integrated factories coordinate production, packaging, and shipment efficiently. In most cases, we can complete orders within 45 days while ensuring consistent quality and timely delivery.

 

Q6: What surface finishes do you offer?

A: We offer powder coating, galvanizing, anodizing, sandblasting, and more through long-term partnerships with surface treatment factories. Surface finishing choices depend on material, environment, and functional requirements. Xinlongji Metal provides the most suitable solution for every sheet metal stamping part based on its intended application.

 

Q7: Which countries do you ship to?

A: Qingdao Xinlongji Metal Manufacturing Co., Ltd. exports sheet metal stamping parts to more than 60 countries across Europe, North America, South America, Africa, and Southeast Asia. Our logistics team ensures timely shipping and helps clients manage customs procedures and freight costs effectively for each destination.

 

Q8: What size Sheet Metal Stamping Parts can you produce?

A: Our 800-ton punching machine supports various part sizes. The feasible dimensions depend on material, thickness, shape, and process complexity. You can send us 2D or 3D drawings (NDA available), and we'll evaluate production feasibility and provide a cost-effective solution for your project.

 

Q9: What information do I need to provide to get a quote?

A: Please provide:

2D/3D drawings or samples;

Quantity and delivery terms;

Material, surface treatment, tolerance, and weight.

The more detailed the information, the faster we can offer an accurate quotation for your custom sheet metal stamping parts project.

 

Q10: What payment methods and delivery terms do you support?

A: We support  T/T, and other payment methods. Delivery terms include FOB, CIF, and EXW. If you have specific requirements, we'll assess them carefully to ensure smooth cooperation and secure international transactions for all sheet metal parts orders.

 

Q11: Is  Xinlongji Metal  a factory, manufacturer, or trading company of Sheet Metal Stamping Parts?

A: Xinlongji Metal is a professional OEM sheet metal stamping parts manufacturer with strong factory resources and integrated supply chain management. Our team covers engineering, procurement, production, logistics, and after-sales to provide one-stop metal stamping solutions for global customers.

Inquiry

+86 19953268588

+86 19953268588

info@xljmetal.com