Two Load Grades for City Roads
Some city roads carry light trucks, while others carry heavy vehicles. This Round Ductile Iron Manhole Cover is available in both C250 and D400 load ratings. You can select the grade according to the expected traffic load. Ductile iron provides a strong body, while asphalt paint is applied to the surface. The round shape fits many standard city manhole openings.
Tall Frame for Road Stability
The clear opening is φ663 mm, the cover diameter is φ700 mm, and the frame diameter is φ900 mm. The frame height is 190 mm, while the cover edge thickness is 22 mm. The tall frame helps reduce movement caused by changes in the road surface. Cast iron provides good wear resistance and withstands pressure during use. Custom logos are available upon request. The main applications include roads with slow heavy traffic and city vehicle roads.
Numbers You Can Check
|
Item |
Details |
|
Load Rating |
C250 / D400 |
|
Material |
Ductile iron; asphalt paint |
|
Clear Opening |
φ663 mm |
|
Cover |
φ700 mm |
|
Frame |
φ900 mm; frame height 190 mm; cover edge thickness 22 mm |
|
Custom |
Custom logo |
|
Use |
Slow heavy traffic, city vehicle roads |
|
Features |
Two load ratings; tall frame helps reduce road movement; ductile iron provides good wear resistance and pressure resistance |
Packing Choices and Custom Work
Export packaging can be arranged with several pieces packed together. Straps with stretch film are another option, while fumigation-free pallet packing is also available. The minimum order quantity is 100 sets. A sample can be provided before mass production, with a sample lead time of one week to one month. A warranty is included, and the warranty period is specified in the contract.
Roundness Control Inside Our Factory
A dedicated round-frame casting area is available in our factory. Our team controls frame roundness, frame height, and frame wall thickness during production. They also check the fit between the cover and frame. These checks help keep the cover stable during use and reduce road noise.
Questions Buyers Often Ask
Q: Which packing types can I choose?
A: Several pieces can be packed together, or straps with stretch film can be used. Fumigation-free pallet packing is also available.
Q: Does the cover shake?
A: No. The cover is checked for proper fit with the frame to help keep it stable and reduce road noise.
Q: Which load ratings are available?
A: C250 and D400 are both available.
Q: What is the minimum order quantity?
A: The minimum order quantity is 100 sets.
If this Round Ductile Iron Manhole Cover fits your project, please contact us for further details. A sales representative and a back-office staff member will handle your inquiry directly. We can help you select a suitable model and manage purchasing risks throughout the process.
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