Use our end-to-end sourcing services to buy the best quality aluminium door knobs from reliable manufacturers in China. Buy functional, elegant, and high-quality door knobs at prices that are far more cost-efficient than domestic manufacturers. Have the product manufactured to your specifications. We work with the factory in ensuring that every batch meets your quality expectations.

Typical materials: ADC12 and various grades of aluminium

Aluminium is the most abundant metal found on Earth. Aluminium products are weather-proof, corrosion-resistant, and last a very long time. They are strong despite being fairly lightweight.

ADC12 aluminium alloy has high mechanical properties and very good castability. This alloy is mostly used to manufacture automobile parts with complicated shapes like transmission cases, cylinder blocks, and converter housings. It is also used for frames and front panels.

Benefits include:

• Ease of casting
• Corrosion-resistance
• Good mechanical properties
• Dimensional stability
• Lightweight

Material composition

• 2% to 3% Copper
• 1.3% Iron
• 9.5% to 11.5% Silicon
• 3% Zinc
• 0.5% Manganese
• 0.1% Magnesium
• 0.3% Nickel

Melting point: 549℃ (1020℉)

Tensile strength: 310 Mpa (44.9 ksi)

Common MOQ: 500 to 10,000 pcs

Generally, standardized or common parts have higher MOQs. While MOQs are negotiable, buyers are advised to be reasonable about the numbers.

Manufacturing methods: Casting, forging, and die casting

• Once the components have been produced, the manufacturer will machine the components to match your exact specifications
• We work with the manufacturer to ensure that you get precise components and intricate parts
• The products come with intricate passages and contours with consistent and repetitive close tolerances
• All door knobs come with accurate and smooth surfaces. All components come with a 125 micro finish, but a higher finish is achievable.

Manufacturing cluster area: Ningbo (Zhejiang province)

Ningbo is a major industrial hub in China and is one of the oldest cities in the country. It is located in the northeast Zhejiang province of China. The port of Ningbo-Zhoushan is one of the busiest ports in the world.

It is one of the major producers of home electric appliances in China. Ningbo houses over 3,000 home electrical appliance manufacturers and 10,000 factories producing electrical appliances, parts and accessories.

The sectors of textiles, garments, home electric appliances, stationery, plastic machines, auto parts, and mold are thriving in Ningbo. The textile industry in the city accounts for 12% of the total industry output of the city.

Ningbo is a significant auto parts production center in China, with over 2,300 manufacturers. The city is also called the Stationery Capital of China, housing more than 800 stationery manufacturers. The high-end mold industry is also very prominent in Ningbo, with over 3,000 manufacturers.

(Source: China Daily)

Application: Aesthetics

Wherever you have doors, you most likely have door knobs. They not only contribute to the aesthetics of the door but also the entire ambiance of your home or office. Besides ensuring your safety and privacy, they also are an essential part of the aesthetics of your decor.

Common issues: Surface finish

Our manufacturers in China have in-process quality checks to ensure that the products meet your quality expectations. You’re assured of a smooth finish with no burrs or edges.

Quality Control

Finished products go through the visual inspection queue to make sure they meet the quality standards.