• OEM ductile iron manhole covers with high quality and competitive prices System 1
  • OEM ductile iron manhole covers with high quality and competitive prices System 2
  • OEM ductile iron manhole covers with high quality and competitive prices System 3
  • OEM ductile iron manhole covers with high quality and competitive prices System 4
  • OEM ductile iron manhole covers with high quality and competitive prices System 5
  • OEM ductile iron manhole covers with high quality and competitive prices System 6
OEM ductile iron manhole covers with high quality and competitive prices

OEM ductile iron manhole covers with high quality and competitive prices

Ref Price:
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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 from A15 to F900

2) Material: grey iron, ductile iron

3) Type:round type and Square type,triangle

4) Sand casting

5).we can produce as per customers'drawings

6)ISO9001:2008


OEM ductile iron manhole covers with high quality and competitive prices

OEM ductile iron manhole covers with high quality and competitive prices



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



Good compressive, bending and impact strength, anti-corrosion, 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.

 


Packaging & Shipping



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

 

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

 

OEM ductile iron manhole covers with high quality and competitive prices

OEM ductile iron manhole covers with high quality and competitive prices



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 change the form of packaging and transportation?

A:Yes,We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

3.Can I request to advance the shipment?

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


Q:How do casting parts remove stress?
Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment
Q:As shown, how do I achieve the tightness test of this product, and achieve industrial production? Seek expert advice.
Precise and tight sealing of the surface to which the test piece is to be tested, equipped with an airtight test instrument, and an electrical control system. You can complete automated testing equipment
Q:How to cast iron and wrought iron collocation
2, listen: Pig beating sound boring, wrought iron beating sound loud.
Q:The difference between cement sand castings, resin sand castings and vacuum casting parts
The clay wet sand castings casting weight from a few kilograms until tens of kilograms, but the clay dry type of casting production can be weighed dozens of tons.For medium and large castings, cast iron, cast steel can be self hardening sand with resin can be water glass sand production, can obtain the precise size, smooth surface castings, but casting precision, surface roughness, density and microstructure, mechanical properties and material cost of sand casting production is often poor, so when the higher performance requirements of castings, should adopt other casting methods, such as casting (lost wax casting), die casting, low pressure casting.
Q:What are the casting parts processing engineering?
Among them, special casting has metal mould casting, pressure casting, low pressure casting, lost wax casting (also known as precision casting), shell casting, lost foam casting, centrifugal casting, continuous casting, V casting, and clay casting
Q:Casting parts need to be subjected to the kind of heat treatment after the weldment is finished
Annealing is needed to eliminate stress and refine grain
Q:How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.
I am doing this for sale, if the price is mainly based on the product structure, the difficulty of pricing. At present, if it is more formal and material guarantee manufacturers generally in 48-53 yuan /Kg (of course, products have a certain weight, such as greater than 100g), our company's current price of about 53 yuan /Kg or so. .
Q:What are the causes of pitting on the surface of a precision casting?
There is a bump on the mold. Or casting cooling fast.
Q:Cause of choking of casting parts
The reason is not in the coated sand, see coating gas evolution, the best use of zircon powder coating (low gas evolution), there is a mold according to a vent needle, this depends on your way is flat or vertical pouring pouring pouring, if vertical pouring, venting pin on the die, and the big piece how could the plane, pouring water flat, a breath, a taboo ah!
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!!
Even distribution is a good thing. Generally, the machining allowance of the casting is uneven.If the processing depends on how your processing techniques have been arranged.In the NC milling plane contour machining, when the rough margin is large, how to deal with.1. Return to the foundry, too large margin improvement.2. Then you can spend more time on it.

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