Dongguan Zhonghui Precision Die Casting Technology Co., Ltd.
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China ADC12 Die Casting Enclosure Suppliers for 5G AAU Base Station | High-Quality Factory Production

Discover premium quality products from our esteemed China factory, renowned for its commitment to excellence. As leading suppliers in the industry, we offer a diverse range of items that cater to your every need. Our factory prides itself on its state-of-the-art manufacturing processes and skilled workforce, ensuring that every product meets the highest standards of durability and performance. Partner with us to access superior goods and reliable service, all backed by our expertise as trusted suppliers from China. Experience the difference quality makes with our exceptional offerings today!
  • Die Casting Machine Cold Chamber Alum Die Cast Machine 350T
  • Die Casting Method Precision Die Casting
  • Application Communications Industry
  • Machining CNC Machining
  • Material ADC12
  • Surface Double-color spraying
  • Certification ISO 9001:2015
  • Capacity 500000 Pieces/Year
  • Transport Package Wooden Pallet
  • HS Code 7616991090
  • Origin Dong Guan of China
  • Shipment By airmail or by Sea
  • Due-date Two month
  • Customized Dispensing, Copper Tubing

Product Display

Features

This cutting-edge product combines advanced technology with superior functionality to provide the ultimate solution for your base station needs.

Excellent Heat Dissipation Capabilities

As the demand for high-speed data transmission increases in 5G networks, thermal management becomes critical to ensure optimal performance. Our housings are designed to effectively dissipate heat, preventing overheating and ensuring smooth operation of the base station.

Excellent Corrosion Resistance

This is especially important for outdoor installations, where exposure to harsh weather conditions can cause damage to the equipment. Our enclosures are built to withstand the elements, protecting your base station from corrosion and extending its lifespan.

Lightweight & Easy Installation

Lightweight and easy to handle and install. This is a significant advantage, especially when it comes to deploying base stations in remote or challenging locations. The lightweight design not only simplifies the installation process but also reduces transportation costs.

Process

Step 01

Aluminum Die Casting

Equipment: 400T aluminum die casting machine

Material: ADC12

Process Characteristics:

  • Furnace temperature: 670°±20°, Material handle: 20±2MM
  • Secondary materials cannot be used
  • Test the material composition to confirm that it is OK and can be produced
  • First piece confirmation is required after die-casting
Precautions: a. The filling quality of the surface needs to be confirmed. No cold insulation, no bulging, or lack of material for the pillars.
b. Pay attention to the surface to avoid sticking molds, drawing molds, or poor ejector pin convexity.
c. The ejector pins are concave by 0-0.2mm for non-machine-added surfaces and 0-0.2mm for machine-added surfaces. The thimble needs to be convex 0-0.2mm.
Step 02

Remove Spout (Saw spout & knock out slag bag)

Equipment: Sawing machine

Tools: Wooden stick

Precautions: a. No crush injury or shortage of materials.
b. Control the size and appearance.
Step 03

IPQC Inspection

Check dimensions according to drawings.

Test Tools: Caliper / Projection / Three-dimensional

Precautions: Use measuring tools correctly and check dimensions according to drawings.
Step 04

Shaping (Product back shaping)

Product back shaping.

Equipment: Knife-edge ruler, shaping fixture

Precautions: Within 0.25mm of the front plane of the product.
Step 05

CNC Machining & Deburring

a. CNC machining (Process the end face of the inner cavity, the end face of the surrounding heat dissipation tooth surface, and the through holes of the tooth holes).

b. Deburring (The sharp corners of the product are chamfered, deburred, non-machined ejector pins are sharpened, and polished to smooth the appearance).

c. 100% inspection.

Equipment & Tools: CNC machine / Flat-bottomed cutter / Drill bit / Tap processing fixture / File / Wind grinder / 120# sandpaper

Precautions: a. Do not over cut, no sand holes, no sharp corners, no missed processing; without scratch, no burr; and the R corners should be connected smoothly.
b. Ensure the finish of the processed surface is Ra 0.8, control the size and shape tolerances.
c. Inspection by go gauge and no-go gauge.
d. Check the flatness of the product according to the drawing.
e. Handle the product gently to prevent deformation.
Step 06

Polishing (Manual removal)

Remove product clamping line caps, surface particles, slag bags, and gate residues.

Precautions: a. No processing be missed, no sharp corners, no sharp edges and the mold closing line should be connected smoothly.
b. Ensure the finish of the processed surface is Ra 0.8, control the size and shape tolerances.
c. Inspection by go gauge and no-go gauge.
d. Check the flatness of the product according to the drawing.
e. Handle the product gently to prevent deformation.
Step 07

Outsourcing (Spraying)

Powder spraying + Oil Spraying (Two-color spraying in separate areas).

Test Tools: Appearance visual inspection, film thickness meter, colorimeter, salt spray tester, hundred grid test tool, alcohol resistance test, pencil test

Precautions: a. The coloring and anti-bake fractal areas are obvious, no different colors, dirt, exposed bottoms, dust accumulation, scratches, etc.
b. The color is consistent with the sample.
Step 08

IPQC / IQC Incoming Inspection

Incoming quality control and process checks after spraying.

Precautions: a. Confirm the surface quality after powder spraying.
b. The holes need to be randomly inspected by needle gauge, inspection by go gauge and no-go gauge.
Step 09

100% Inspection (Powder spraying appearance)

a. 100% inspect the appearance of the powder-coated surface.

b. Conduct random inspections for the powder-coated performance test.

Precautions: 1. The painted and anti-bake fractal area is obvious, and there is no abnormal color, dirt, exposed bottom, dust accumulation, scratches, etc.
2. The color is consistent and uniform according to the sample.
Step 10

Dispensing Glue

Dispense adhesive to the specified bar area, dispensing width and height 1.0±0.1 symmetrically centered.

Tools: Dispensing machine, dispensing fixture

Precautions: 1. Glue strips is uniform, no breakage, accumulation, drawing, glue overflow, deviation, bubbles, falling off, etc.
2. Ensure that the glue does not regenerate well or does not stick, and the glue strength is not ideal, etc.
Step 11

Assembling (Accessories)

a. Corresponding assembly position of heat dissipation copper bar for glue assembly.

b. Lock the corresponding position of sheet metal parts M2.5*5 screws to press the heat dissipation copper block.

Parts List: SE4450 Glue, 4x Heatsink Copper Bars, 3x Sheet metal parts, 6x M2.5*5 half-round screws

Precautions: a. Copper bar dispensing slot is filled with glue according to the sample.
b. Ensure that the lock screw position is stable without loosening and slipping teeth.
Step 12

Baking (Drying)

Put the products in 2 columns and 7 rows, total 14pcs neatly on the baking line. Baking temperature: 150℃, Time: 30 minutes.

Equipment: Dryer

Precautions: Leave a certain gap between the product placement, pay special attention to not touching the tunnel door; hold lightly; do not touch the scratches.
Step 13

100% Inspection (Appearance & Packaging)

Final overall visual and mechanical check before packing.

Precautions: a. The appearance shall be inspected according to the sample. The surface shall be free of dirt, scratches, dents and defects, and the glue dispensing shall be even and without defects.
b. The tooth pattern must comply with the go gauge and no-go gauge.
c. The product is placed in the knife card, covered with flat cardboard on the upper layer, and then packaged.
Step 14

FQC Inspection

Test Tools: Caliper, projection, needle gauge, tooth gauge, appearance and outer packaging inspection

Precautions: Confirm whether the measuring tool is within the calibration period.
Step 15

Shipping Preparation

Final packaging and documentation.

Precautions: a. Make sure the quantity is the same as order.
b. Label and stamp on the outer box.
c. Provide a shipping report.
Step 16

OQC Shipping Inspection

Test Tools: Caliper, projection, needle gauge, tooth gauge, appearance and outer packaging inspection

Precautions: Whether the measuring tool is within the calibration period. Whether it is consistent with SIP requirements and customer requirements.

Frequently Asked Questions

What material is used for the 5G AAU base station enclosure?

The enclosure is manufactured using high-quality ADC12 aluminum alloy, processed via a 400T precision pressure die-casting machine to ensure structural integrity and durability.

How does this product handle thermal management?

The design features excellent heat dissipation capabilities. Additionally, during the assembly process, heat dissipation copper bars are secured using specialized SE4450 thermal glue to optimize heat transfer and prevent overheating.

Is this aluminum alloy enclosure suitable for outdoor environments?

Yes, it features excellent corrosion resistance. The surface treatment includes a two-color powder and oil spraying process, which is salt-spray tested to withstand harsh outdoor weather conditions.

What quality checks are performed during the manufacturing process?

We perform multiple stages of quality control, including IPQC dimensional checks, 100% visual inspection of the powder-coated surfaces, FQC inspections, and final OQC shipping inspections using calipers, projection systems, and needle/tooth gauges.

How is the product packaged to prevent damage during transit?

During the packaging phase, each product is carefully placed into a protective knife card fixture and covered with flat cardboard layers to prevent scratches, deformation, or dents during shipping.