Custom Aluminum Heat Sink Manufacturer — Complete Thermal Cooling Solutions

From high-volume extruded aluminum heat sinks to precision CNC-machined assemblies, HJTC delivers certified, custom-engineered thermal solutions for the global industrial, defense, and high-performance electronics sectors. Contact Now！
A wide, heavy-duty aluminum profile heat sink featuring serrated vertical fins for increased surface area.

Sold by the Inch — Cut to Your Exact Length

All extruded aluminum heatsinks are sold by the inch with custom cut-to-length available on every order. Simply select your nearest inch size and specify your exact cut length at checkout. Need help? Our engineers are just a call or email away.
precision-machined aluminum base station housing with a built-in heat sink.

1.000" Wide Extruded Aluminum Heatsink

High-strength 6063-T6 aluminum heatsink widely used in power supplies, LED drivers, and motor controllers. Alloy: 6063-T6 | Width: 1.000" | Fin Height: 0.366" | Base: 0.098" | C/W/3": ~14.00 | Weight per Inch: 0.02 lbs.
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A high-density silver skived fin aluminum heat sink.

2.000" Wide Extruded Aluminum Heatsink

Popular mid-size aluminum heatsink engineered for audio amplifiers, DC-DC converters, and general industrial power electronics. Alloy: 6063-T5 | Width: 2.000" | Fin Height: 1.000" | Base: 0.250" | C/W/3": ~3.50 | Weight per Inch: 0.12 lbs.
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A CPU heat sink with copper heat pipes and aluminum cooling fins.

3.000" Wide Extruded Aluminum Heatsink

High-demand alu heatsink optimized for servo drives, welding controls, and mid-to-high power inverters. Alloy: 6063-T5 | Width: 3.000" | Fin Height: 1.000" | Base: 0.250" | C/W/3": ~2.20 | Weight per Inch: 0.17 lbs.
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High-density silver aluminum skived fin heat sink on a dark background.

4.000" Wide Extruded Aluminum Heatsink

Robust 6063-T6 aluminum heat sink for IGBT modules, variable frequency drives, and industrial automation systems. Alloy: 6063-T6 | Width: 4.000" | Fin Height: 1.000" | Base: 0.300" | C/W/3": ~1.80 | Weight per Inch: 0.22 lbs.
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An assortment of silver and black aluminum extruded heat sinks in various sizes=

5.000" Wide Extruded Aluminum Heatsink

Wide-profile aluminum heatsink engineered for solar inverters, motor drives, and high-current power conversion systems. Alloy: 6063-T6 | Width: 5.000" | Fin Height: 1.000" | Base: 0.300" | C/W/3": ~1.50 | Weight per Inch: 0.28 lbs.
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Large rectangular aluminum extruded heat sink with a flat top surface.

6.000" Wide Extruded Aluminum Heatsink

High-performance 6063-T6 aluminum heatsink for EV chargers, renewable energy systems, and high-power industrial equipment. Alloy: 6063-T6 | Width: 6.000" | Fin Height: 1.000" | Base: 0.300" | C/W/3": ~1.20 | Weight per Inch: 0.35 lbs.
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Request Your Custom Heat Sink Quote Today

Submit your size and application requirements. We’ll get back to you within 24 hours with pricing, lead times, and custom cut-to-length options.
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Why Global Industry Leaders Trust Our Aluminum Heat Sinks

From single-piece prototypes to high-volume production runs, HJTC delivers factory-direct aluminum heat sinks with the flexibility, speed, and precision your project demands. We offer low MOQs with absolutely zero compromises on quality."

  • Zero MOQ. Precision-Cut to Your Exact Length.

    Whether you need a single prototype or a full production run, HJTC's extruded aluminum heat sinks are custom-cut to your exact dimensions. Enjoy transparent linear pricing with no minimum order quantities, zero NRE tooling fees, and a frictionless procurement process.

  • Rapid Production & Global Express Shipping

    The vast majority of orders enter production within 24 hours, with priority rush processing available for time-critical projects. Partnering with DHL, FedEx, and UPS, we deliver your custom heat sinks directly from our manufacturing facility in China to your door in as little as 3 to 7 days.

  • The Industry’s Widest Selection of Extruded Aluminum Profiles

    Spanning widths from 0.354” to 12.000”—and featuring flatback, round, serrated fin, and high-density configurations—our extensive tooling library provides off-the-shelf readiness for demanding applications across the LED lighting, audio, industrial, medical, aerospace, and defense sectors.

Trusted by Industries Where Thermal Performance is Critical

From commercial LED lighting and high-fidelity audio systems to industrial power electronics, medical devices, aerospace, and defense applications—HJTC's extruded aluminum heat sinks deliver consistent cooling performance where it matters most. Explore the diverse industries and real-world applications our thermal solutions power every day.

  • Extruded aluminum heat sink mounted on a green motherboard PCB.
  • Cleaning dust from a motherboard heat sink with a brush and air blower.
  • Gold anodized aluminum pin-fin heat sink on a blue PCB.
  • Silver aluminum pin-fin heat sink mounted on a green PCB.
  • Blue anodized aluminum pin-fin heat sink on an orange PCB.
  • Large silver aluminum heat sink with fine fins on a blue PCB.

Your Trusted Aluminum Heat Sink Manufacturer in China

Global engineers and OEMs trust HJTC for premium extruded aluminum heat sinks without the hassle of MOQs or tooling fees. As a direct-to-factory manufacturer, we extrude, precision-cut, and express-ship custom solutions worldwide. From single prototypes to high-volume production, we’re here to help you cool what matters.

Factory-Direct Precision
Agile Manufacturing
Engineer-to-Engineer Support

Trusted by Leading Engineers and OEMs Across North America

From LED lighting startups to aerospace and defense contractors, thousands of customers rely on our precision-manufactured aluminum heat sinks to cool their most critical products. Here's what they have to say about our quality, flexibility, and service.

“Consistent quality, factory-direct reliability, and absolutely no surprises. We’ve trusted HJTC with every LED project for the past three years—they haven’t missed a beat.”

Mark D
Commercial Lighting Group

“Ordered one heat sink, custom-cut, no tooling fees, shipped the next day. No other supplier in the industry offers this level of flexibility.”

Sarah W
Audio Equipment Startup

“Our go-to partner for mission-critical thermal solutions. Fast turnaround, exact tolerances, and direct access to real thermal engineers when we need technical guidance.”

James L
Industrial Automation Firm

Get Your Custom Heat Sinks in 3 Easy Steps

Browse hundreds of ready-to-ship profiles online or let our engineers select the ideal solution for you.

01

Select Your Profile
Browse hundreds of in-stock extrusion profiles online, or contact our engineers for help matching the perfect profile to your thermal requirements.

02

Specify Your Custom Cut
Provide your length, quantity, and machining needs (drilling, tapping, or anodizing). Get transparent, by-the-inch pricing with no tooling fees or MOQs.

03

Fast Global Shipping
Orders ship directly from our factory via DHL, FedEx, or UPS. Get your custom parts delivered door-to-door in just 3–7 days.

Frequently asked questions

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Frequently asked questions

Yes. We specialize in fully custom solutions. Simply send us your 2D/3D drawings or thermal specs, and our engineers will recommend the ideal profile, length, and secondary operations—including CNC milling, drilling, tapping, and anodizing. We also provide custom mold development for unique designs.

We offer zero MOQ for in-stock profiles, making it easy to order even a single piece for prototyping. For custom extrusion designs requiring new tooling, MOQ requirements vary. Contact us with your project details, and we’ll find a solution that fits your budget.

Standard production lead time is 7–15 business days, depending on order quantity and customization complexity. For shipping, we offer flexible options: express courier (DHL/FedEx/UPS) delivers in 3–7 days, air freight in 5–10 days, and sea freight in 25–40 days. Every order includes full tracking and export documentation, so you always know where your shipment is.

Production & Shipping

  • Lead Time: 7–15 business days (depends on quantity and complexity).

  • Express: 3–7 days (DHL/FedEx/UPS) for door-to-door delivery.

  • Air & Sea: Air freight (5–10 days) or sea freight (25–40 days) for bulk orders.

  • Tracking: Every order includes full tracking and professional export documentation.

Our Quality Commitment

  • Premium Alloys: We exclusively use 6063-T5 and 6061-T6 aluminum.

  • Certified Standards: ISO 9001-certified manufacturing and strict ASTM testing.

  • Rigorous Inspection: Every batch is tested for dimensions, hardness, and surface finish.

  • Documentation: Detailed QC inspection reports are provided with every shipment upon request.

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