
D400 cast iron cover for main road of city municipal construction
Material: cast iron, ductile iron
GJS500-7 & EN124
Size: customized or standard
LOGO embed: available
Loading ability: from B125 to F900
Certification: CE, ISO
Product Description
We are manufacturer for making D400 cast iron cover; Our manhole covers produced and tested according to EN124 standard;
Castking has more than 800 workers and 2 advanced produce line, can make more than 1000pcs manhole covers each day.
Since 1993, we started to produce D400 cast iron cover, now, we have exported cast iron covers and frame to more than 50 countries and regions.
D400 cast iron cover is one of the most common manhole covers. D400 means a load of 400KN, which is 40 tons. This can be applied to general main roads.
It can be used as a manhole cover, or drain cover, with a service life of more than 30 years, widely used in road construction, municipal engineering and other industries.
China’s development is inseparable from cast iron cover, these small manhole covers provide very great support for China’s modernization development. Now, we also sell them to other countries to provide assistance for infrastructure in other countries.
Specifications
Dimension | Details |
Shape | Round, square, rectangular |
Diameter | from 200-1500mm |
Depth | from 10-400mm |
Material | Ductile iron GJS500-7 |
Loading ability | EN124 |
Customize | Available |
Lock | Lock and hinge available |
Size | Cutomized size and shape available |

Loading class
Manhole cover loading class, there are 6 different class according to EN124 standard, it`s A15, B125, C250, D400, E600, F900. Different loading class means different application. Normally, A15, B125, C250 for pavement, depestrain, park; D400 E600 for main road and highway; E600-F900 for airport, dock.
Group | Loading class | Application |
#. Group 1 | A15 | Pedestrain, pavement |
#. Group 2 | B125 | Driveway |
#. Group 3 | C250 | Car parks |
#. Group 4 | D400 | Main road, highway |
#. Group 5 | E600 | Industrial area |
#. Group 6 | F900 | Docks & airport |