• Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 1
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 2
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 3
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 4
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 5
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 6
Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 set
Supply Capability:
4166 set/month

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Product Description


1) production standard: EN124 

2) Material: grey iron, ductile iron

3) Type:round type and Square type,triangle

4)we can produce as per customers'drawings

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei




Specification



Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)Unit Weight (kg/set)
TD1221D4001220*6751378*831100
216
TD1222D4001220*6751370*83015080.5



Advantages



Superior quality, bending and impact strength, anti-corrosion, water-proof,not rust, long service life (at least 30 years).

The quality meets the same kinds cast ion manhole covers but the cost is 30% lower than other companies.

 Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei


Packaging & Shipping



Packaging: Details Pallet with bubble film, Carton or with pallet,

 

Delivery Detail: 8 days if your order is 20"container

 

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei



FAQ


1.Can I get free samples?

A: Yes, we can provide you the free sample, but you need to bear their own delivery costs.

2.Can I request to advance the shipment?

A: It should be depends on whether there is sufficient inventory in our warehouse.

3.Can I have my own Logo on the product?

A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.

Q: What are the casting parts tested?
The surface brightness, appearance, size, chemical composition, weight, material, surface defects, internal defects, seals need to be checked, leakage, etc.
Q: the parts of the threaded hole is casting, casting the hole directly, and then tapping or casting, and then punch 10When the casting is ready, punch it again before tapping it Is the hole casting good or is it punched and tapped on the drilling machine after casting?
Single for this problem, the direct casting out of course good. But many times because of the limitations of the process, so we choose the post-processing hole
Q: What should I pay attention to when designing a casting structure?
1 of the casting in metal mold cooling was faster than sand, metal type and let, thus casting in metal mold casting, casting stress generated in the ratio of sand casting to crack tendency is also large, but also prone to misrun and cold lap, white (for casting casting). Defect. Usually: (1) in the prevention of metal casting casting crack aspect should pay attention to the following problems: the structure of A in wall thickness, wall transition and connection to the ease, corner fillet appropriate requirements such as should be more strict than sand casting; B should be connected vertically connected with the wall to tilt C; for the weak parts of the structure should be set to strengthen ribs, bosses, to prevent casting; D should minimize the obstacle free shrinkage of the boss, casting rib, flange and other prominent part; E in the casting arrangement of ribs, but also should consider its influence on the casting shrinkage.
Q: What is the difference between casting and stamping parts?
Cold stamping is generally no longer done by cutting, or only a small amount of cutting is required. The precision and surface state of hot stamping parts are lower than those of cold stamping parts, but they are better than those of castings and forgings, and the amount of cutting is less.Stamping is mainly based on process classification, can be divided into separation process and forming process two major categories.
Q: Why do casting parts have air holes?
Cangshan Qiao hidden his answer is quite comprehensive, you can try using inert gas to reduce air cover
Q: How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness
Hot galvanizing doesn't seem to workThe zinc layer is 275g/ square meters of material coating is 0.019mm (mm), up to 0.08 thick.
Q: What kind of flaw detector is better for casting parts?
Casting using the detector test, you must first determine the detection process, such as the detection of surface and near surface crack defects, such as casting, recommended by CYD-3000, or CYD-5000 mobile magnetic testing machine for testing.
Q: What do you mean by "proofing" in the casting? Do you charge for the proofing?
Proofing? In the casting industry is not called proofing, proofing is generally used in the printing industry, that is, according to the customer's drawings or samples, to do a first piece, to provide customers with the inspection process to meet their requirements;In the foundry industry, providing prototypes is sometimes difficult:1, customers if the provision of mold, it would be best, at this time, sample costs are very low, and almost the same as your regular products;2, the customer does not provide the mold, but in business relationships, your factory and not very sure must take this one, it requires your leadership decision-making, is free or low cost, or by a strict process offer (of course sample);3, not all of the casting process to provide samples are difficult, like lost foam can directly make a white NC prototype, and then assembled pouring, this is her unique advantages, first cost less than the opening process and so on;If you don't understand, you can continue to question me
Q: When the blank is a casting, the margin is evenly distributed, how should rough machining?Please help friends from mechanical classes.There is another problem: in the NC milling plane contour machining, when the rough margin is large, how to deal with.Who can help in time, add 20 reward. Urgently!!
Personal advice:Because of the large margin, your outline is easy to guarantee;So the key is to consider the assembly and aesthetics of the casting. You have to find the machining criteria;Rough the datum so that it can be machined;After the outline, turn back to the finishing line.If the casting requirement is not high, the benchmark can be directly processed; (not recommended)Over
Q: The difference between sheet metal and casting parts
Commonly used in machine tools casting material is gray cast iron, casting bearing alloys can also be.

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