
D400 Cast Iron Manhole Covers – Heavy duty for main road highway
Material: cast iron, ductile iron
GJS500-7 & EN124
Size: customized or standard
LOGO embed: available
Loading ability: from D400 400KN 40T
Certification: CE, ISO
Product Description
We are manufacturer for making D400 Cast Iron Manhole Cover; Our manhole covers produced and tested according to EN124 standard;
- D400 Cast Iron Manhole Covers can be applied to pedestrian streets and light car roads. It can be called 400KN pressure, 40 tons weight.
- Can be designed as a circle, rectangle, square, triangle
- Can add lock, anti-theft device, anti-rust spray
- LOGO, pattern
- Size can be customized
Since 1993, we started to produce D400 Cast Iron Manhole Cover, now, we have exported cast iron covers and frame to more than 50 countries and regions.
D400 cast iron manhole cover for road construction. for heavy duty main road, and for pavement. Cast iron, it is a very strong material which with good performance and physical ability. With very good anti-rust ability if painted with black bitumen.
Generally speaking, D400 can meet all basic needs, except for additional airports, terminals and other places.
Hing and lock can be installed to prevent other personnel from opening the manhole cover. The material of the manhole cover is nodular cast iron, which can be used for more than 30 years.
Specifications
Dimension | Details |
Shape | Round, square, rectangular |
Diameter | from 200-1500mm |
Depth | from 10-400mm |
Material | Ductile iron GJS500-7 |
Loading ability | EN124 D400 |
Customize | Available |
Lock | Lock and hinge available |
Size | Cutomized size and shape available |

Loading class
Manhole cover loading class, there are 6 different class accoring to EN124 standad, 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 |
Most common size for D400
ITEM NO | Clear Opening Size | Frame Size | Frame Height | Shape | Details |
---|---|---|---|---|---|
CK-D300 | Φ300mm | Φ470mm | 100/150mm | Round | Read More |
CK-D450 | Φ450mm | Φ620mm | 100/150mm | Round | |
CK-D500 | Φ500mm | Φ670mm | 100/150mm | Round | |
CK-D600 | Φ600mm | Φ770mm | 100/150mm | Round | |
CK-D450450 | 450*450mm | 620*620mm | 100/150mm | Square | |
CK-D600450 | 600*450mm | 770*620mm | 100/150mm | Rectangular | |
CK-D600600 | 600*600mm | 770*770mm | 100/150mm | Square | |
CK-D675675 | 675*675mm | 855*855mm | 100/150mm | Square | |
CK-D750600 | 750*600mm | 950*800mm | 100/150mm | Rectangular | |
CK-D750750 | 750*750mm | 930*930mm | 100/150mm | Square | |
CK-D900600 | 900*600mm | 1080*780mm | 100/150mm | Rectangular | |
CK-D900900 | 900*900mm | 1080*1080mm | 100/150mm | Square | |
CK-D10001000 | 1000*1000mm | 1180*1180mm | 100/150mm | Square | |
CK-D1220675 | 1220*675mm | 1400*855mm | 100/150mm | Rectangular |