Vacuum Tube Aluminum Profiles are strong, lightweight, hollow aluminum parts built to hold or move air and gases in near‑empty, sealed vacuum spaces. They are not regular aluminum tubes—their smooth, tight inner walls and stable shape keep air from leaking, making them perfect for systems that need consistent low pressure.
Made from durable aluminum alloy, these profiles stay light yet sturdy, resist rust and wear, and work reliably in long‑term use. They come in round, square, rectangular, or custom shapes to fit different machines and setups. Their clean inner surfaces reduce air resistance, so vacuum systems run efficiently with less energy.
You’ll find them in industrial vacuum setups, packaging machines, electronics manufacturing, lighting systems, and research equipment. They help create stable vacuum environments, support sealed chambers, or channel gases safely without leaks. Unlike heavier steel parts, they are easy to handle, install, and modify. They also last longer in damp or busy workspaces because aluminum naturally resists corrosion.
Vacuum Tube Aluminum Profiles are dependable, user‑friendly components that bring lightness, strength, and airtight performance to any project needing controlled vacuum or sealed gas flow. They simplify setup, lower running costs, and keep equipment working smoothly for years.

Mechanical & Physical Performance
High strength-to-weight ratio: Lower density than steel, yet structurally rigid enough to withstand vacuum pressure loads, reducing system weight and easing installation.
Good dimensional stability: Resists warping or deformation under temperature and pressure fluctuations, maintaining consistent sealing and geometry in long-term use.
Sealing & Vacuum Compatibility
Excellent airtightness: Smooth inner surfaces and seamless extrusion reduce gas retention and leakage risk, supporting stable medium–high vacuum conditions.
Low outgassing: Stable oxide layer minimizes volatile emissions, helping accelerate vacuum pumping and maintain clean vacuum environments.
Corrosion & Durability
Natural corrosion resistance: Self-forming dense oxide film protects against moisture and mild chemical exposure, extending service life vs. carbon steel.
Surface treatable: Anodizing or coating further boosts durability in humid, coastal, or lightly corrosive settings.
Processing & Economic Benefits
Easy machining: Readily cut, drilled, and welded, supporting custom profiles and lower fabrication costs vs. stainless steel.
Non-magnetic: Avoids magnetic interference, suitable for precision vacuum and electronic applications.
Recyclable: Fully recyclable with minimal performance loss, supporting sustainable material cycles.
Core dimensional parameters include outer diameter (OD), inner diameter (ID), wall thickness, cross‑section shape (round, square, rectangular), and length.
Standard metric sizes typically range from DN15 to DN200 (or φ4 mm to φ300 mm OD), with wall thickness from 0.1 mm to 40 mm.
Key structural dimensions are width/depth (for profiles) and corner radius, which affect load capacity and stress distribution.
Tolerance control is strict: for sizes ≤100 mm, common tolerances are ±0.25–0.70 mm to ensure vacuum sealing and assembly fit.
Custom dimensions are available for special vacuum systems, matching equipment interfaces and space constraints.
Colors are diverse, including natural silver, black, gray, champagne, gold, rose gold, and custom solid shades; wood-grain and stone-texture finishes are also available.
Most use anodizing or vacuum coating for even color, good adhesion, and resistance to fading, scratches, and corrosion.
Finishes vary: matte for a low-key look, glossy for brightness, brushed for texture, matching industrial or decorative needs.
Colors serve both looks and function: dark shades reduce glare; light/metallic shades improve heat dissipation; custom colors aid system identification.
Stable in vacuum, high-temperature, or outdoor use; long-lasting with consistent appearance.
Woodgrain Colors Chart
Powder Coating Finish RAL Colors Chart
Anodized Colors
Established in 1985, Huzhou Yindu Aluminium Co., Ltd.(formerly called 721 factory of Huzhou)is a professional manufacturer of aluminium profiles. It was converted to Huzhou Yindu Aluminum Co., Ltd., and moved to Yanghua Village Zone, Nanxun Town, with a new name of Huzhou Yindu Aluminum Science and Technology Company, located in the ancient town of Nanxun, Huzhou, Zhejiang Province.
Our company is a local large-scale enterprise with more than 120million yuan in capital assets,42,000 square meters of covering area, and up to 10,000 tons of annual production capacity of aluminium profiles. We are awarded as“Key Enterprise of Huzhou, Zhejiang”, “Council of Huzhou Metallurgy Chamber of Commerce”, “AA–Credibility Enterprise of Industry&Commerce in Zhejiang Province”, and“Huzhou Credibility Enterprise”.
With over 30 years of hard work and continuous development, we already have advanced equipment and scientific management. Presently, there are many workshops, including aluminium extrusion, mechanical polishing, oxidizing staining, electrophoretic painting, powder electrostatic painting, water spray paint, doors and windows making, machinery processing, etc., as well as a quality monitoring center, which formed a complete modernized production scale of aluminium profile.
We can produce various aluminium alloy building and decorative materials according to customers’requirements; aluminium alloy tubes, rods, profiles used in industry, agriculture, vehicles, and ships. The anode oxidation and electrophoresis of aluminium alloy can produce different types of colors, such as black,bronze-colored, champagne color, imitate stainless steel color, silver-white rub sand, ordinary silvery white, hard oxidation, etc. Powder electrostatic painting can produce various tinted green aluminium profiles. The company also produces building tempered glass, escalator tempered glass, shower room tempered glass, etc.
We are permitted by the national industrial products and have registered “Yindu” as our trademark. Additionally, we have been named as“Famous Trademark of Huzhou” and“Famous Brand of Huzhou”.We have passed ISO9001 International Quality System, ISO 14001 environmental management system, ISO 45001 safety management system, and IATF 16949 quality management system. We are awarded as the“Civilized unit of Nanxun, Huzhou City”, “Star Enterprise”, “Leader for Tax Payment”, and other honors.
Our“Yindu” products are well sold to Jiangsu, Zhejiang, Shanghai, Anhui, Shandong, Liaoning, Heilongjiang, Jilin, and other big and medium-sized cities, and some have been exported to Japan, Australia, France, Switzerland, Europe, and the United States. Quality for Credibility; Credibility for Market; Market for Reform; and Reform for Development”—This is our guide principle. Credibility is our Guarantee, Quality is our Root, and Service is our Tenet. We strive to provide reliable services for our customers with quality products, a wide variety, and reasonable prices. We hope that the “Yindu” aluminium alloy profile will become your preferred choice.