The Zhongqiao Box series represents our premium line of integrated sewage treatment equipment, custom-engineered to meet specific client requirements. Each unit is tailored to individual process characteristics and can be branded to reflect corporate identity and culture.

Our integrated systems comprise four main components: the container body, supporting electromechanical equipment, piping and accessories, and control systems. This comprehensive integration ensures straightforward installation and maintenance.

The cold-formed steel plates are precision-bent using CNC technology and protected through powder electrostatic spraying with 200-degree high-temperature melting, leveling, and solidification processes.

Optional electric heating with rubber cotton or rock wool insulation is available for cold climate operations in northern regions. Custom patterns or logos can be hand-drawn upon request.

• All steel plates conform to national standards, ensuring optimal thickness, strength, toughness, and superior welding performance
• PP material equipment exclusively uses virgin materials from PetroChina and Sinopec, guaranteeing high-temperature resistance, corrosion resistance, environmental safety, and exceptional durability
• All flanges manufactured according to national standards with standardized production
• Mechanical and electrical components sourced from reputable domestic brands for reliability and minimal failure rates
• Dedicated PLC and MBR membrane processing workshops ensure component quality and system integration

• Carbon steel equipment features double-sided full welding for maximum structural integrity and leak prevention
• Mixed gas welding technology enhances arc stability, weld quality, strength, and corrosion resistance while minimizing spatter
• PP equipment utilizes integral winding molding with automatic long-arm extrusion welding for seamless, monolithic construction

• State-of-the-art automated machinery including large welding systems, laser engravers, bending machines, and cutting equipment
• Automated processes eliminate common manual operation issues and significantly enhance production efficiency

• Carbon steel equipment protected with triple-layer epoxy coal tar paint internally and epoxy zinc-rich paint externally
• Hammer pattern finish provides superior adhesion, scratch resistance, wear resistance, and enhanced environmental protection
• PP equipment offers inherent high-temperature and corrosion resistance ideal for wastewater treatment applications
• Filling brackets and internal ladders constructed from galvanized threaded steel to prevent corrosion and filling entanglement

• Carbon steel equipment reinforced with channel steel surround, forming an internal skeletal structure verified by mechanical analysis software
• PP equipment features integral winding molding with elastic modulus ≥1500MPA and high ring stiffness
• Internal carbon steel anti-corrosion reinforcement ribs provide exceptional compressive and tensile strength
• PP materials include antioxidant additives, extending equipment lifespan to 50 years with recyclability

Our systems utilize diversion pipes rather than traditional overflow methods, directing wastewater to the bottom of subsequent tanks to ensure thorough biochemical reactions. This approach delivers higher treatment efficiency, superior effluent quality, and reduced sludge production.

• Proprietary PLC systems serve as the operational core with dedicated processing workshops ensuring reliability
• MBR membranes manufactured in-house to maintain quality control and reduce maintenance frequency
• Chaos Cloud platform enables remote monitoring and control via mobile devices and computers
• Advanced automation reduces labor requirements and operational costs

Our industrial design center creates elegant, visually appealing equipment exteriors that complement any environment, transforming functional equipment into attractive installations.