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round D400 heavy duty manhole cover

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Quick details

· Shape: Round

· Material: Ductile Iron GJS500-7

· Duty Class: EN124 D400

· Frame Style: Bottom Flange

· Gasket Material: Neoprene

· Lock Material: SS304

· Coating: Black Bitumen

· Standard: EN124-2015

· Surface Pattern:Customized

· Surface text:Customized


In House tooling

The main tooling for sand casting is the pattern that is used to create the mold cavity. The pattern is a full size model of the part that makes an impression in the sand mold. However, some internal surfaces may not be included in the pattern, as they will be created by separate cores. The pattern is actually made to be slightly larger than the part because the casting will shrink inside the mold cavity. Also, several identical patterns may be used to create multiple impressions in the sand mold, thus creating multiple cavities that will produce as many parts in one casting.

Several different materials can be used to fabricate a pattern, including wood, plastic, and metal. Wood is very common because it is easy to shape and is inexpensive, however it can warp and deform easily. Wood also will wear quicker from the sand. Metal, on the other hand, is more expensive, but will last longer and has higher tolerances. The pattern can be reused to create the cavity for many molds of the same part. Therefore, a pattern that lasts longer will reduce tooling costs. A pattern for a part can be made many different ways, which are classified into the following four types:

Another piece of tooling used in sand casting is a core-box. If the casting requires sand cores, the cores are formed in these boxes, which are similar to a die and can be made of wood, plastic, or metal just like the pattern. The core-boxes can also contain multiple cavities to produce several identical cores.


We supply round D400 heavy duty manhole cover.

We devoted ourselves to casting industry for many years,has been exporting to Europe and Australia since 2001. 

We are expecting become your long team partner, OEM & OED is welcomed.

Item

round sewer ductile iron manhole cover

Brand name

CastKing or OEM

Size

200mm-1000mm

Type:

Round,square

Material

Gray Iron, Ductile Iron, Malleable iron

Coating

Cold applied black bitumen Antirust oil, Plating, Paint, Powder Coating, epoxy coating

or as per customers' requirement.

Application

Municipal construction

Loading pressure

EN124 A15,B125,C250,D400,E600,F900, or as per customers' drawings or samples.

Advantages

Anti-noise ,Anti-theft,anti-rust,long life service.

Package

Pallet and wooden case,or as per customers’ requirements

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