In the construction of modern urban drainage systems, drainage grates, as key facilities for stormwater collection and road drainage, directly impact drainage efficiency, road safety, and municipal maintenance costs. Traditional cast iron drainage grates have long faced problems such as susceptibility to theft, poor corrosion resistance, and high noise levels, while ordinary composite drainage grates often have limited load-bearing capacity due to insufficient structural strength. The Luzhongbao Composite Material Ordinary Drainage Grate, based on high-performance composite materials and innovative structural design, successfully breaks through the technical bottlenecks of traditional drainage facilities through a scientific formula system and precision production processes, and has now become the ideal choice for projects such as municipal roads and residential area drainage.

This product uses a high-strength composite material system. The matrix selects high-quality unsaturated polyester resin, and the reinforcement material uses continuous glass fibers. It is formed in one step through a high-temperature, high-pressure compression molding process. This material combination gives the product both excellent mechanical properties and corrosion resistance. Its tensile strength exceeds 150 MPa, and its flexural strength exceeds 200 MPa. The unique structural design allows loads to be evenly transferred through the internally three-dimensionally distributed reinforcement rib network, effectively avoiding stress concentration phenomena and significantly improving the product's service life.
Material System and Process Innovation
The core advantage of the Luzhongbao Composite Drainage Grate lies in its innovative material formulation and manufacturing process. The matrix material uses high-performance unsaturated polyester resin. By adding UV inhibitors and antioxidants, the product's weather resistance is significantly enhanced. The reinforcement system uses directionally laid glass fiber fabric, achieving isotropic mechanical properties through precise ply design.
The manufacturing process employs a computer-controlled hydraulic molding system. Precisely regulated temperature, pressure, and time parameters ensure thorough material curing and a dense, uniform internal structure. Unique mold design gives the product precise dimensional tolerances and smooth surface quality after demolding. The size and distribution of the drainage holes are precisely calculated, ensuring both drainage efficiency and structural integrity.
Structural Design and Drainage Performance
The structural design of this drainage grate fully considers the balance between drainage efficiency and load-bearing capacity. The interior uses a clearly prioritized primary and secondary reinforcement rib layout, with a dense support network installed in key stress areas, effectively enhancing the product's load-bearing capacity. The drainage hole design is based on fluid dynamics principles, employing a gradually expanding hole structure that ensures maximum drainage efficiency while effectively preventing clogging by debris.
Laboratory tests show that this product maintains over 95% drainage efficiency even when rainfall intensity reaches 150 mm/h, far exceeding national standard requirements. The unique radial rib design allows water to enter smoothly from all directions, effectively avoiding the clogging issues common with traditional grid structures by leaves and other debris.
Load-Bearing Performance and Safety Features
The product load-bearing class reaches the C250 standard, with a test load exceeding 250 kN, fully meeting the usage requirements for locations such as sidewalks and residential roads. The surface anti-slip pattern combines raised dots and linear grooves in a three-dimensional design, ensuring reliable anti-slip assurance even in rainy or snowy conditions. The grate body and frame use a multi-point buckle connection system, ensuring installation stability while facilitating later maintenance and cleaning.
A special edge chamfer design effectively avoids noise issues during vehicle passage, enhancing user comfort. The built-in anti-fall design provides additional safety assurance for maintenance operations, effectively preventing accidental incidents.

Durability and Environmental Adaptability
The inherent corrosion resistance of the composite material enables the product to resist erosion from chemicals such as rainwater and de-icing agents. By adding anti-aging agents and UV absorbers, the product's service life in outdoor environments can exceed 30 years. The special formula design also gives the product good temperature resistance, enabling it to adapt to environmental temperature changes from -40°C to 80°C.
The product's lack of scrap value fundamentally prevents theft, significantly reducing the repeated procurement and maintenance costs caused by theft. Furthermore, the material's inherent insulating properties also eliminate the safety hazard of electric leakage on rainy days.
Construction Convenience and Economic Benefits
The modular design makes the installation process simple and efficient, with installation time per unit not exceeding 15 minutes. Precise dimensional control ensures a perfect fit with standard frames, requiring no on-site adjustments. The product weight is only 1/4 of cast iron products of the same specification, significantly reducing transportation and installation costs.
From a whole-life-cycle cost analysis, the product's ultra-long service life and extremely low maintenance requirements reduce the comprehensive cost of use by over 40% compared to traditional products. According to engineering statistics, after adopting this drainage grate, maintenance frequency is significantly reduced, effectively saving operation and maintenance costs.
Application Scenarios and Adaptation Performance
The standardized dimensional design of this drainage grate enables it to adapt to various drainage environment needs, being particularly suitable for locations such as sidewalks, plazas, and residential roads. The product can be customized in different colors according to actual needs, perfectly blending with the surrounding environment, and enhancing the overall landscape effect while meeting functional demands.
Its excellent corrosion resistance makes it particularly suitable for corrosive environments such as coastal areas and chemical industrial parks, providing a reliable solution for drainage systems under special working conditions.

Summary
The Luzhongbao Composite Material Ordinary Drainage Grate, with its excellent material properties, scientific structural design, reliable performance, and significant economic benefits, has become the preferred solution for modern urban drainage construction. This product not only solves the technical defects existing in traditional drainage facilities but also, with its innovative design concept and exceptional performance, provides reliable assurance for the efficient operation of urban drainage systems. Choosing this product means injecting lasting quality assurance and value return into the engineering project, which is the fundamental reason for its continued recognition in the market competition.