As a source manufacturer that has been deeply involved in the aluminum processing industry for more than ten years, Haomei Aluminum has accumulated irreplaceable core competitiveness in the field of road sign aluminium circle. Our aluminium circle products have been exported to more than 30 countries and regions including North America, the European Union, and Southeast Asia, serving more than 200 overseas transportation engineering companies, and have become the preferred partner for many international customers.

We provide a full range of 1060/1100 pure aluminum and 3003/5052 alloy aluminum circles for road signs, with diameters ranging from 120mm to 1200mm. The thickness is accurately controlled within the range of 1.0-3.0mm (regular specifications 600mm/800mm/1000mm are available from stock), and the tolerance is strictly controlled within ±0.1mm. It supports customizing special sizes according to international standards such as ASTM B209 and EN 573-3, meet the application needs of all scenarios from rural roads to highways.

Quality is our lifeblood and this is especially critical in the field of road safety. We have established a six-channel quality control system:
1. Traceability of raw materials:
Only high-purity aluminum ingots are selected, and ICP-OES spectral analysis ensures that the chemical composition compliance rate is 100%;
2. Dimensional accuracy:
Cutting by CNC punch machine, diameter tolerance ±0.1mm, thickness uniformity deviation <±5%, flatness error ≤0.3mm/㎡;
3. Surface quality:
No scratches, no oxidation, no oil stains, surface roughness Ra<0.8μm after tension leveling, perfect fit for various types of reflective films;
4. Mechanical properties:
Elongation ≥ 25%, no cracks when bent at 180°, meeting anti-fatigue requirements for long-term outdoor use;
5. Corrosion resistance test:
There is no obvious corrosion in the neutral salt spray test for 480 hours. The thickness of the natural oxide film reaches 8-12 μm, which can be increased to 20 μm after anodization;
6. Factory inspection:
5% of each batch is selected for destructive testing. 100% of exported products pass third-party inspection and hold triple certifications of CE, ASTM, and ISO9001.
Our road sign aluminium circle products have been used stably for more than 8 years under extreme climate conditions in North America, and customer feedback has a failure rate of less than 0.02%, which is far better than the industry average.

Processing of aluminium circle adopts aluminum coil uncoiling → precision slitting → CNC punching → tension leveling → cleaning and passivation → drying and coating fully automated production line. The key equipment is imported from Germany and Japan, and the automation rate reaches 92%. The innovative oil-free cutting process reduces surface contamination, special passivation treatment improves the adhesion of the reflective film by 30%, and the film protection avoids transportation scratches. The daily production capacity reaches 12,000 pieces, with regular orders completed within 72 hours and urgent orders delivered within 48 hours. The production efficiency is 40% higher than the industry average.

As a full-industry chain manufacturer integrating aluminum ingot casting, rolling and punching, we eliminate intermediate trade links, and the price of road sign aluminium circles with the same specifications is 10-15% lower than traders. Reduce raw material costs through large-scale procurement, reduce labor losses through automated production, and further control costs with a waste recycling rate of 98%. Supports FOB Qingdao/Shanghai USD quotations, and can enjoy tiered price discounts for batch orders, helping customers increase project profit margins.

Haomei Aluminum always adheres to the principle of "win the market with quality and build brand with service". We not only provide high-quality aluminum circless, but also provide reliable guarantee of road safety. Choosing us means choosing to cooperate with an aluminum processing expert who truly understands the international market and road safety. Welcome to visit the factory at any time and look forward to working with you to create a new level of road safety!