Dongguan Zhonghui Precision Die Casting Technology Co., Ltd.
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China Aluminum Casting CNC Machining Heatsink Prototyping - Leading Suppliers and Factory for Custom Solutions

Discover our premium products sourced from reliable suppliers and manufactured in our state-of-the-art factory in China. We pride ourselves on delivering high-quality items that meet international standards while maintaining competitive prices. Our China-based factory utilizes advanced technology and skilled craftsmanship to ensure that every product not only meets but exceeds customer expectations. Partner with us today to experience the finest in quality and service from top-tier suppliers dedicated to excellence
  • Die Casting Machine Cold Chamber Alum Die Cast Machine 300T
  • Die Casting Method Precision Die Casting
  • Application Inverter power supply, switching power supply, laser power supply, welding machine, communication transmitter, base station, control cabinet, power regulator
  • Machining CNC Machining
  • Material ADC12
  • Surface Cleaning + Leather Coating
  • Certification ISO 9001:2015
  • Capacity 100000 Pieces/month
  • Transport Package Wooden Pallet
  • HS Code 7616991090
  • Origin Dong Guan of China
  • Shipment By airmail or by Sea
  • Due-date Two month

Product Display

Aluminum Die Casting CNC Machining Heat Sink (1)a4b
Aluminum Die Casting CNC Machining Heat Sink (2)joi
Aluminum Die Casting CNC Machining Heat Sink (3)azb
Aluminum Die Casting CNC Machining Heat Sink (4)pte

Aluminum Die Casting CNC Machining Heat Sink

Our heat sinks focus on mid-to-high-end customers in Asia, North America, Europe, Israel, Japan, South Korea, Malaysia, Singapore and other regions, and are used in communication, machinery, automobiles, wind power generation, engineering machinery, air compressors, railway locomotives, household appliances, etc.

Features

CNC machined aluminum die-cast radiator
Our heat sinks are widely used in communications, machinery, automobiles, wind power generation, engineering machinery, air compressors, railway locomotives, household appliances and other fields. Our target customers include mid-to-high-end customers in Asia, North America, Europe, Israel, Japan, South Korea, Malaysia, Singapore and other regions.

a. Light weight

Our radiators are made of innovative aluminum alloy, which is much lighter than traditional radiators.

b. Strong corrosion resistance

Our radiators are made of aluminum and zinc alloy, ensuring a long service life even under wear and tear conditions.

c. High temperature resistance

We pay great attention when designing the radiator so that it can withstand high temperatures without losing functionality.

d. Optimum heat dissipation

Our radiator’s superior heat dissipation capability is its main selling point.

Process

1

Aluminum die casting

Equipment: One 300-ton die-casting aluminum machine
Contents: ADC12

Process characteristics:
  • a. The furnace temperature is 670°±20°, and the material handle is 20±2 mm.
  • b. It is impossible to utilize secondary materials.
  • c. Material composition must be tested to ensure it is suitable for production.
  • d. After die casting, the first piece must be confirmed.
Note:
  • a. It is necessary to verify the filling quality of the surface. It’s not the bulge, it’s not the cold insulation, it’s not the lack of material in the pillars.
  • b. Pay attention to the surface to prevent poor ejector pin crown, mold pulling or mold sticking.
  • c. For non-machined surfaces and machined surfaces, the ejector pins are concave by 0-0.2 mm. The convexity of the ejector pin must be 0-0.2 mm.
2

Take out the nozzle (saw nozzle) and pull out the slag bag

Equipment / Method: Hydraulic Press
Note:
  • a. Pay attention to the surface and don't damage it or use insufficient material.
  • b. Manage size and appearance.
3

IPQC inspection

Testing Tools: Calipers, projection, 3D, visual inspection of appearance.
Precautions: Check dimensions against drawings and use accurate measuring equipment.
4

Shape Product front shape

Equipment: Hydraulic presses, forming tools and blade rulers.
Precautions: Within 0.25 mm from the front plane of the product.
5

IPQC inspection

Method: Appearance visual assessment.
Status: Standard Visual Inspection.
6

Shape the back of the product

Tools: Forming tools, blade ruler.
Note: Within 0.15mm from the large surface of the product.
7

Tapping and drilling

Equipment / Operation: Use the following equipment to drill D2.05 hole depth 6 and tap M2.5 hole depth 5.5: height gauge, bottom hole pass gauge, M2.5 pass gauge.
Precautions: Avoid contact with scratches, flange burrs, missed taps, broken taps and residual metal fragments.
8

IPQC INSPECTION Visual inspection

Method: Standard visual inspection of manufacturing output.
9

Chemical conversion film for cleaning and leather coating

Precautions: No obvious color, unclean, no contact, no scratching.
10

100% visual inspection (appearance) before powder coating

Process: Thoroughly inspect the goods and packaging.
Consumables: dividers, containers, bubble wrap and desiccant.
Note:
  • a. Appearance needs to be checked based on samples. There should be no dents, scratches or other blemishes on the surface and the glue application should be smooth and flawless!
  • b. The pass and stop inspection requirements of the tooth profile must be met.
  • c. After the product is inserted into the knife card, the top layer is covered with a flat cardboard and wrapped.
11

FQC exam

Testing Instruments: Calipers, projectors, pin gauges, tooth gauges, visual and packaging inspection.
Note: Verify if the measuring device is still within its calibration window.
12

Shipping notes

Note:
  • a. Confirm that the amount matches the order.
  • b. Label and stamp the outer box.
  • c. Send reports on shipments.
13

Qualified transportation inspection

Testing Instruments: Calipers, projectors, pin gauges, tooth gauges, visual and packaging inspection.
Precautions: Verify that the measurement device is still within its calibration window. Check whether it meets both customer and SIP requirements.
14

OQC shipment inspection

Testing Instruments: Calipers, projectors, pin gauges, tooth gauges, outer packaging inspection, etc.
Note: Verify if the measuring device is still within its calibration window and whether it meets both customer and SIP requirements.

Frequently Asked Questions (FAQ)

QWhat industries are these aluminum die-cast radiators used in?

They are widely used in communication, machinery, automobiles, wind power generation, engineering machinery, air compressors, railway locomotives, household appliances, and other fields.

QWhat regions do you distribute these heat sinks to?

We focus on mid-to-high-end customers in Asia, North America, Europe, Israel, Japan, South Korea, Malaysia, Singapore, and other global regions.

QWhat are the main material benefits of these radiators?

They are made of innovative aluminum and zinc alloys, offering lightweight construction, strong corrosion resistance, high temperature resistance, and optimum heat dissipation performance.

QWhat quality control steps are taken during the production process?

We implement strict quality checkpoints including IPQC inspections at multiple stages (post-die casting, shape alterations, tapping), 100% visual inspection before powder coating, FQC examinations, and final OQC shipment inspections.

QWhat tools are used for dimension and quality testing?

Testing instruments include calipers, projectors, 3D measurements, pin gauges, tooth gauges, height gauges, and visual inspection tools to guarantee alignment with drawings and SIP requirements.

QWhat are the specifications for the aluminum die casting step?

The process utilizes a 300-ton die-casting aluminum machine and ADC12 material. The furnace temperature is maintained at 670°±20° with a material handle of 20±2 mm, utilizing no secondary materials.