C250 Ductile Iron Manhole Cover

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TT or LC
Min Order Qty:
100 m.t.
Supply Capability:
3000 Tons Per Month m.t./month

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Product Description:


Specification of C250 Ductile Iron Manhole Cover:


•Material: Ductile Iron GGG500-7

•Size Range: 700*700,600*800 ...

•Manufacture Standard: EN124:1994

•external coating :Black Bitumen




Kerbside channel of roads


Features of Ductile Iron Manhole Cover:


1. High load rating and strength

v Similar hard property as cast iron, while have a overwhelming advantage on stretch recovery.

v Less noise and lower vibration transmissions.


2. Against theft and safety options

v Zero theft value, reducing potential accident and further maintenance cost caused by thieves.

v Surface anti-slip thread guarantees safe road condition even in extreme weather.

v Locks are available as an option molded into the cover to improve security rate.

v Non-electricity conduction and non-heat conduction.


3. Lightweight 

v Compared with cast iron manhole covers, composited covers are 50% lighter.

v Lightweight allows more loading per vehicle, more convenient transportation and economical saving.

v Allows a safer working condition, which a SINGLE worker is enough when installation without risk of injury.


4. Durable service life.

v More than 30 years service life without crack and color fading, comparing to 5 years of cast iron.

v Anti corrosion,water, dust and pets tight, well sealed prevent poisonous gas leaking out.

v Without displacement, freely radio signal passing.

v Higher and lower temperature tolerance with the range -40°C-200°C.

v Wear indicators available when thread depth is in a danger value.


5. Free design

v Much more clear resolution ratio of surface design than cast iron or BMC.


6. Carbon footprint saving and environmental care.

v Lower embedded energy carbon emission and during manufacturing process than cast iron covers.




Metal band, plastic, wooden pallet. As per customers' requirements


  C250 Ductile Iron Manhole Cover  











  C250 Ductile Iron Manhole Cover  














 C250 Ductile Irion Manhole Cover

















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CDMANHOLE, rich on the resources for castings and the convenient transportation, is specialized in manufacturing and exporting gray iron & ductile iron anti-stealing manhole covers with frames, grates, pipe fittings and etc.

1. Manufacturer Overview

Location Tianjin, China
Year Established 2008
Annual Output Value Above US$ 1 Million
Main Markets Mid East, Africa, Europe
Company Certifications ISO9001:2000

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin; Qingdao
Export Percentage 50%
No.of Employees in Trade Department 400 People
Language Spoken: English; Chinese; Spain; Alabic
b)Factory Information  
Factory Size: Above 10,000 square meters
No. of Production Lines 3
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average