The SMC composite manhole cover is manufactured through high-temperature compression molding of sheet molding compound. It features lightweight strength, corrosion resistance, insulation, and anti-theft properties. Compared with traditional cast iron covers, it weighs only one-third as much, significantly reducing transportation and installation costs while eliminating theft risks caused by scrap recycling. Designed in accordance with EN124 standards, the product provides reliable load-bearing capacity and is widely used in municipal roads, residential areas, telecommunications, power, and water supply networks. The surface can be customized with patterns and logos according to customer requirements, offering both anti-slip performance and aesthetics. With a service life of over 20 years and minimal maintenance costs, it is regarded as the new generation of eco-friendly municipal drainage products.
SMC (Sheet Molding Compound) manhole covers represent a breakthrough in the field of modern urban infrastructure. Unlike conventional cast iron covers, which are heavy, susceptible to rust, and often stolen for scrap value, SMC covers are made of a composite material composed of fiberglass reinforcement, resin, and mineral fillers. Through high-temperature compression molding, the product gains both superior strength and a lighter structure, making it easier to handle during transportation and installation.
One of the major advantages is its weight reduction—typically one-third of cast iron. This directly reduces labor requirements on-site and increases overall efficiency for contractors. In addition, SMC covers meet strict international standards such as EN124, ensuring load-bearing reliability in different environments. They are available in multiple classes, from A15 suitable for pedestrian zones to F900 for airport runways and industrial facilities.
Another critical advantage lies in safety. Because the product contains no recyclable metal, it completely eliminates theft issues that plague cast iron covers. The material also provides electrical insulation, making it ideal for installation in power distribution areas and communication facilities. Moreover, its slip-resistant surface ensures pedestrian safety, even in rainy or icy conditions.
Customization is another strong point. Logos, city names, or patterns can be molded directly onto the surface, creating a professional appearance while also serving branding or functional identification purposes. The product is resistant to ultraviolet radiation, water, and chemicals, which means it can withstand long-term exposure to harsh outdoor environments without losing performance.
With a life span exceeding 20 years and little maintenance required, SMC manhole covers not only reduce total cost of ownership but also contribute to sustainability. They are environmentally friendly, corrosion-free, and compliant with green urban development goals. For municipalities, contractors, and utility companies looking for efficiency, durability, and safety, SMC covers are an increasingly popular choice around the world.
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