Shata Machinery is a Chinese manufacturer of high-performance die cast aluminium heat sinks with 18 years production experience.
We evaluate heat dissipation structures based on the die-casting process, provide practical suggestions to maximize heat dissipation area within limited installation space; we also optimize the die-casting process to overcome challenges such as thin fin forming, internal porosity, and unstable thermal resistance.
Welcome to inquire about ADC12 and A380 custom die cast heat sinks.
Technical Specifications
| Item | Custom Range |
| Product Name | Die Cast Aluminium Heat Sink |
| Alloy Material | ADC12, A380, AlSi12 |
| Thermal Conductivity | 96–140 W/m·K, customizable high thermal conductivity heat sinks |
| Overall Dimension | 50–1000mm, support customization of large size die casting heat sinks up to 1000 * 1000mm |
| Fin Thickness & Spacing | Minimum fin thickness 0.8mm, min spacing 1.5mm, available for thin and dense fin structure die cast aluminium heat sinks |
| Dimensional Tolerance | Casting tolerance: min ±0.1mm; CNC machining: ±0.02mm |
| Long Term Operating Temperature | -40℃~+120℃ |
| Flatness of Mount Base | ≤0.08mm per 200mm length, perfect chip contact & low thermal resistance |
| Surface Treatment | Shot blasting, clear anodizing, black hard anodizing, powder coating, electrophoresis |
| Salt Spray Resistance | 240–960 hours, custom anti-corrosion finish for outdoor/coastal equipment |
| Casting Process | High Pressure Die Casting (HPDC) |
| Clamping Force of Die Casting Machine | Max 3000 ton |
| Protection Level | IP65, IP67, IP68 |
| Applicable Working Conditions | Natural cooling/forced air cooling/water cooling/oil cooling |
| Delivery Status | As die-cast/machined finished products/surface treated finished products |
| Certification | ISO 9001, 14001, 45001 |
Why Choose Shata – High Quality OEM Die Cast Aluminium Heat Sink Supplier
Technical support for Structural Design
The minimum wall thickness and minimum spacing between die-cast aluminium heat sink fins are key concerns for designers.
Our technical team addresses these process issues for each customer's product, providing customized structural optimization solutions.
We assist customers in designing die cast heat sinks that combine mass production feasibility with high-efficiency heat dissipation, avoiding mold modifications and effectively shortening product development cycles.
CNC Prototypes Support New Product Development
Fully CNC machined prototypes before mold making are available relying on our own CNC workshop, allowing customers to test and verify their designs and identify any design issues.
This helps customers quickly obtain first article samples for verification and certification, while also avoiding mold modification costs due to design changes.
Customization for All Specifications and Complex Structures
Equipped with 160T – 3000T die-casting units, we are capable of custom-producing a full range of die-cast aluminium heat sinks from small and micro electronics heat sinks to large industrial die-cast aluminum cooling housings.
For heat sinks with complex structures such as irregular fins, deep or hollow cavities, and slender ribs, we select larger die-casting units with higher clamping force, ensuring molding quality and effectively avoiding die-casting defects such as material shortages and cold shuts.
Stable Quality With High Precision
Engineers accurately set the shrinkage ratio to design and manufacture molds, which is the key to the precision of castings; CNC machining tolerances for assembly areas can reach ±0.02mm, ensuring a tight fit and excellent heat conduction between die cast aluminium heat sinks and heat source.
Standardized operating procedure documents are established for each process, and all production parameters are locked throughout the process.
A QC plan is established for each project covering in-line patrol inspection, full check of critical dimensions, and pre-shipment random inspection to ensure high-quality delivery.
Wide Selection of Alloys & Surface Treatments
We support customization of die cast aluminium heat sinks made from various materials including ADC12, A380, AlSi9Cu3, and AlSi10Mg.
The unspecified surface finish is sandblasted, but we can also meet various surface requirements such as anodizing, powder coating, and electrophoresis to meet special working conditions such as outdoor use, high temperatures, and waterproofing.
Cost-Effective Die-Cast Heat Sink Solutions
We deploy automated die-casting ladling machines, part-extraction robots, and blank conveying lines.
A single worker can easily manage 1-2 die-casting units, achieving more than 1,000 shots per unit per shift, greatly cutting labor costs.
Customizable Types from Shata
We offer custom non-standard die cast aluminium heat sinks based on CAD/STEP drawings or samples, and can mass-produce various specifications, shapes, and structures with high quality.
- Square Flat Die Cast Aluminium Heat Sink: For power supply, drive controller, PCB board cooling
- Round Radial Fin Heat Sink: For high-power LED flood light, mining lamp, street light
- Enclosure Integrated Heat Sink: Telecom base station shell, EV motor controller housing
- Low Profile Compact Heat Sink: 1U server, mini industrial control equipment
- Custom Special-Shaped Heat Sink: Non-standard equipment per customer CAD/STEP drawings
Our Production Flow
We have mature mold development and casting production processes from die-casting to delivery, with key steps and parameters controlled by professional technicians to ensure stable quality and on-time delivery of die cast aluminium heat sink orders.
Our QC Control for Die Cast Aluminum Heat Sinks
Full-process quality management is the core method by which we consistently produce high-quality die cast aluminium heat sinks.
Every project undergoes design review, material verification, mechanical property and dimensional inspection, visual and internal defect detection, as well as various performance tests.
These rigorous multi-step processes ensure that the quality consistently meets standards.
Our Successful Cases
We have completed the development and production of more than 60 types of die cast aluminium heat sinks.
Below are some real photos of our products.
Our Die Casting Machines
Equipped with a variety of die-casting units ranging from 160T to 3000T, we select the best fit unit based on the structure and dimensions of die cast aluminium heat sinks.
This eliminates long order waiting queues due to equipment capacity limitations, enabling shorter lead times and faster delivery.
Applications of Our Die Cast Aluminium Heat Sinks
- LED Lighting: High bay lights, tunnel lights, street lamps, stage lighting, LED bulbs
- New Energy: EV motor controllers, ECU, VCU, BCM, battery management system, charging pile modules, battery heatsinks
- Telecommunication: 5G base station, network switch, server power units
- Industrial Equipment: Servo drives, frequency converters (DC/DC), welding power supplies
- Medical Devices: Precision imaging equipment, lab power cooling modules
- Outdoor Machinery: Monitoring equipment, industrial camera heat management
FAQ
Q: Can ordinary anodized ADC12/A380 Die Cast Aluminium Heat Sink be used in seawater?
A: Absolutely not. Severe pitting corrosion will occur within a short period. Stainless steel would be a better choice.
Q: The heatsink has exposed cooling fins. Will thick powder coating drastically weaken heat dissipation?
A: Yes, thermal resistance will rise significantly. Anodizing is better than powder coating for high heat dissipation performance heat sinks.
Q: Which aluminum alloy is the best for high-power heat dissipation?
A: A413.0, whose thermal conductivity reaches 120–134 W/(m·K), is ideal for high-power equipment when better heat transfer is required.
Q: What is your MOQ?
A: 200 kg
Q: What's your production lead time for bulk orders?
A: 30-40 days for ordinary heat sinks. It will be a little longer for parts with complex structure or special surface treatment.
Q: Can you cast logos, PNs and production dates onto heat sinks?
A: Sure. We also provide design support to help customers choose the best position and decide letter sizes.
Q: Can you offer tiered pricing for long-term bulk cooperation?
A: Yes, tiered preferential prices based on order volume.
Q: Is your unit cost of die cast aluminium heat sink competitive compared with extrusion heat sinks?
A: Simple extrusion profiles have lower raw piece cost, yet they cannot make integrated inner cooling channels or complex shapes, require additional machining and welding, thus increase hidden costs.
This is where our die-casting process demonstrates an irreplaceable cost advantage.
Q: Is your aluminum heat sink suitable for EV charging pile & motor controller cooling?
A: Fully applicable. We customize enclosure-integrated heat sinks for new energy modules, adopt high thermal conductivity alloy, anti-corrosion surface treatment, supporting a wide temperature range of -40℃~120℃, stable heat dissipation under long-time continuous charging operation.
Q: Can your heat sinks meet the strict thermal management requirements of 5G telecom base stations?
A: Yes. Our compact low-profile cast heat sinks fit 1U server & base station internal limited space; dense fin structure handles concentrated high heat flux, we can provide sample for your strict high-low temperature cycle & vibration test.
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