Adhering to the business philosophy of “Precision, Detail, Strength”, the company currently operates a production facility spanning 30,000 square meters, with a team of 120+ industry engineers, technicians, and employees. Equipped with patented technologies, Zhonghao meets diverse filtration needs across industries and serves multiple Fortune 500 companies.
Corporate Vision
Guided by the vision of “Transforming Sludge into Resources, Filtering Wastewater into Clear Springs”, we aim to provide users with highly efficient and convenient product services. Your visit and collaboration are warmly welcomed!
Technical Support
Certification
Production Line
Frame Production Workshop
Q345B low-alloy steel (tensile strength ≥ 470 MPa) is used, formed through CNC plasma cutting (accuracy ±0.5 mm) and robot welding. Frames undergo stress relief annealing at 850°C and are then shot blasted to enhance paint adhesion.
100% welds undergo ultrasonic testing, and pressure testing is performed to 2.2 times the design value (e.g., a 25 MPa frame is tested to 55 MPa).
Monthly production of 150 standard frames and 30 custom frames.
Production Line
Filter Plate Production Workshop
High-pressure injection molding of pure PP/TPE materials at 260°C ± 1°C, with CNC machining for precision trimming of seal grooves (coaxiality ≤ 0.05mm).
Each filter plate undergoes a 25MPa pressure test, with a flatness tolerance of ≤ 0.1mm/m², eliminating micro-leakage.
Daily output of 800 filter plates, with custom pore sizes from 5 to 80μm.
Production Line
Filter Cloth Production Workshop
Loom-woven single/multifilament filter cloth (nylon/polyester/PP), with hot-melt stitching for zero burrs. Water Permeability ≥ 800L/㎡·h.
Each batch undergoes a 3-hour clogging test using simulated sludge, and is certified for acid and alkali resistance (pH 1-14).
Monthly production of 3,000 sets of filter cloth, supporting special requirements for explosion-proof applications.
Production Line
Assembly Workshop
Assembly in a constant temperature, dust-free environment (NAS 1638-7 cleanliness level), laser alignment of rails (parallelism <0.3mm). Hydraulic lines undergo helium leak testing, and the control system undergoes a 72-hour burn-in test.
Automatic plate pulling system thrust error <5%, cylinder seals undergo 100,000 compression cycles with no leakage.
Daily assembly of 8-10 complete units, with factory testing completed within 48 hours.
Production Line
Finished Product Warehouse
Intelligent Warehousing System (WMS) with zoned management and humidity control of 40% ± 5%. Filter plates are stored and transported vertically to prevent deformation, and the entire unit is sealed with a rust-proof oil film.
10-ton gantry crane platform, supporting 24-hour container loading, and 30-day delivery to global ports.
About Us
Corporate Video
About Us
Workshop Display
