I. Grade Positioning and Load-Bearing Standards
The E600 high-load-bearing capacity manhole cover complies with the EN124 international standard and the GB/T 23858-2009 national standard. It has a rated load of 600kN and can stably withstand a 60-ton heavy load. The measured ultimate load exceeds 65 tons, far exceeding that of ordinary C250 and D400 grade manhole covers. Specifically designed for heavy-duty scenarios, it has undergone repeated testing to eliminate cracking, deformation, and collapse problems under high-frequency heavy loads.
II. Material Selection and Structural Design
Using QT450-10 and QT500-7 ductile iron, with a tensile strength >=450MPa and elongation >=10%, its toughness and strength are superior to ordinary gray cast iron. It is wear-resistant and impact-resistant, suitable for complex outdoor environments.
Employing a "thickened panel + built-in reinforced ribs + integrated casting" process, the panel thickness is 18-25mm (3-5mm thicker than ordinary manhole covers). Reinforcing ribs are distributed in a cross-ring pattern. The manhole cover and panel are integrally molded without welding. The stepped design conforms to the road surface, and the chamfered edges ensure both safety and impact resistance.
III. Performance Details
Ultra-high load-bearing capacity: Stably withstands long-term traffic from 60-ton heavy vehicles without significant load-bearing capacity degradation, suitable for various heavy-duty scenarios.
01
Anti-settlement, anti-noise, and anti-bouncing: The anti-slip stop precisely engages, flush with the road surface (error <=2mm). Equipped with anti-settlement pads, the bottom anti-slip protrusions prevent displacement and bouncing, and there is no abnormal noise from running over the surface.
02
Anti-theft and anti-displacement: Optional mechanical locks and combination locks are available. The manhole cover has expansion bolt fixing holes, suitable for strong vibration and high-frequency rolling scenarios, preventing theft and loosening.
03
Corrosion Resistant and Easy to Maintain: Treated with hot-dip galvanizing and powder coating for corrosion resistance, it is resistant to rain, snow, acids, alkalis, and oil stains, ensuring a long service life and requiring only simple daily inspection and cleaning.
04
High Adaptability: Customizable in various sizes and opening methods, including round and square, with pre-reserved drainage and inspection holes, suitable for various municipal and industrial pipe networks.
05
IV. Applicable Scenarios
Highways, urban heavy-duty main roads, expressways, tunnels, bridge decks.
Heavy industrial zones, freight terminals, container yards, heavy-duty parking lots.
Airport cargo/maintenance channels, mining transportation roads, main roads of large logistics parks.
V. Engineering Value and Advantages
Eliminates safety hazards associated with manhole covers in heavy-duty scenarios, protecting vehicles, pedestrians, and pipe network facilities.
Service life exceeding 30 years, requiring no frequent maintenance or replacement, offering outstanding cost-effectiveness.
Meets international and national standards, meets the acceptance requirements of various high-standard projects, and improves construction efficiency.
Withstands high and low temperatures, humidity, and acid, alkali, and oil contamination; requires no additional protection and is highly versatile.
Shanxi Jintai Hongye Casting & Forging Machinery Co., Ltd., located in Shanxi Province, China, is a leading manufacturer of ductile iron pipe fittings, pipes, various valves, and manhole covers. We have automated production lines and an experienced production technology team to provide you with professional and flexible customized solutions.
Etiqueta: e600 high-load-bearing capacity manhole cover, China e600 high-load-bearing capacity manhole cover manufacturers, suppliers, Cubierta antihorable de los tocadores, Cubierta y marco de hierro dúctil, cubierta de mano de obra de hierro dúctil, Salmón de hierro dúctil cubierta de manejo, cubierta de manejo de satén de hierro dúctil, cubierta de manejo usado de hierro dúctil