Luzhongbao 370×370×60 Composite Rectangular Chamber

Product Features: Anti-Theft Design,Lightweight & High Strength,Anti-Slip Safety
Against the backdrop of intensive utilization of modern urban underground space, traditional inspection chambers often face installation difficulties at local nodes such as pipeline junctions and instrument installation points due to their excessive size. Particularly in working conditions with strictly limited space like sidewalks, equipment foundation pits, and utility tunnel branch connection points, it is necessary to ensure both the structural integrity and functionality of the node, while also minimizing the structural size to the greatest extent. The Luzhongbao 370×370×60 Composite Rectangular Chamber is a high-precision product developed specifically for this need. Through optimized cube morphology and an enhanced wall thickness design, this product achieves the core functions of a standard inspection chamber within an extremely small footprint, reflecting the technical trend of municipal engineering components towards modularization and precision. This product utilizes a high-performance composite material system and computer-aided engineering (CAE) optimized structure. Its external dimensions are 370mm × 370mm × 60mm (wall thickness). This nearly square design provides the maximum effective operating area within a limited space. The 60mm thickened wall, combined with the integrally molded internal 3D reinforcement rib network, ensures mechanical performance under a compact structure. The product inherits the excellent properties of composite materials: corrosion resistance, electrical insulation, and no magnetic hysteresis loss. Its smooth internal surface and standard interface design ensure smooth pipeline connections. This rectangular chamber is particularly suitable for scenarios with strict spatial constraints, providing an optimized solution for compact underground nodes that combines high structural strength with minimal spatial occupancy.

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Composite Manhole Cover Luzhongbao Manhole Cover

Product Description Luzhongbao 370×370×60 Composite Rectangular Chamber: An Engineered Optimized Solution for Compact Underground Facility Nodes. Material System and Manufacturing Process The exceptional performance of this rectangular chamber stems from its professional material formulation and manufacturing process. The matrix uses high-strength unsaturated polyester resin, modified with nano-scale fillers, significantly enhancing the material's dimensional stability and creep resistance. The reinforcement system employs a composite structure of chopped glass fibers and continuous glass fiber mat, ensuring isotropic properties while achieving directional reinforcement in key areas. The manufacturing process utilizes ten-thousand-ton hydraulic presses matched with high-precision molds for compression molding. Precisely controlled temperature, pressure, and curing time parameters ensure the resin flows sufficiently and fully impregnates the fibers, forming a dense and uniform composite structure. Special surface treatment technology applied to the molds gives the product mirror-smooth inner and outer surfaces, effectively reducing fluid resistance and the probability of fouling. Structural Design and Mechanical Performance The structural design of this product fully considers mechanical requirements under compact dimensions. The 60mm thickened wall, working together with the internally radially distributed reinforcement rib network, forms an efficient spatial load-bearing system. Addressing the stress concentration characteristic at the corners of square structures, arc optimization design was applied to the transition areas through Finite Element Analysis, significantly improving the structure's compressive strength and impact resistance. Laboratory tests confirm that the ring stiffness of this rectangular chamber reaches SN15 grade, and its compressive strength exceeds 180 kN/m², fully meeting the load-bearing requirements for areas such as sidewalks and green belts. Standard interfaces pre-set in the chamber walls can adapt to pipeline connections of various diameters. The non-slip footrests provided around the perimeter offer safe and convenient operating conditions for maintenance personnel. Engineering Applications and Comprehensive Value In practical engineering, this compact rectangular chamber demonstrates unique application value. Its small size minimizes the occupation of underground space to the greatest extent, making it particularly suitable for pipeline upgrade projects in densely built-up areas. The product weight is only 1/8 of a traditional concrete chamber, greatly reducing transportation and installation difficulties, enabling manual handling and rapid assembly. From a whole-life-cycle cost analysis, the product's design service life exceeding 30 years and near-zero maintenance characteristics give it a significant comprehensive cost advantage. The lack of scrap value completely solves the theft problem, while its insulating and corrosion-resistant features ensure long-term reliable operation in complex environments. Summary The Luzhongbao 370×370×60 Composite Rectangular Chamber is a high-precision engineering component developed specifically for space-constrained scenarios, successfully achieving a unity of small size and high performance. By combining advanced materials and optimized design, the product provides a reliable solution for compact underground nodes, reflecting the direction of modern municipal engineering towards refinement and modularization. Choosing this product means providing the optimal technical choice for the construction of underground facilities under special working conditions.