Cast Iron Round with Lock Manhole Cover/Composite Manhole Cover

Cast Iron Round with Lock Manhole Cover/Composite Manhole Cover 

1. Against theft ---WEIFANGSHENGAO Composite Manhole Cover with shockproof rubber sealing is non-metallic, non-conductive and non-sparking, has no value of recycling, completely solving the theft problems.
2. High load capacity ---Its main components are fibreglass and unsaturated resin. JINMENG's existing moulds load capacity are A15, B125, C250, D400, E600. 
3. Free design---Such as Color, Logo, Panel, Load and Dimension can be desigened according to the requirements of customer. 
4. Long life ---Minimum lifespan is 30 years free of maintenance .
5. Well sealed ---It can be installed hermetically, and effectively prevent poisonous gases leaking out from cesspool. and no noise pollution or rebound.
6. Good wear and corrosion resistance ---It will never rust because it has good wear and corrosion resistance.
7. High and low temperature resistance ---Excellent insulator ( from-40°C~200°C)
8. Lighter weight and more competitive price--- the weight of composite manhole cover especially SMC manhole cover is lighter. The composite manhole cover is more convenient to transport, install and repair.
 
Application:
(1) Electric power pipeling well; Post, telecommunication, communication pipeline well;
(2) Street lamp well, fire control well, all kinds of valve well;
(3) City water, drainage pipeline well; Heat supplied, gas well;
(4) Anti-corrosion project, open ditch; It as well as can be made according to customers requirements.
 
Features:
Sand casting: 
Materials: cast iron,ducile iron
Casting tolerance: CT9-CT12 Standards: GB, ASTM, SAE, ISO, EN, DIN, JIS, BS 
Piece weight: Al 50 g - 100 kg 
Steel and iron: 0, 5 - 2000 kg 
Heat treating: Annealing, discharge, carbonization, tempering, normalization and surface tempering Surface finishing: Grinding, polishing, painting and various coatings 

Product Quality:
Service life: 30 years . (We guarantee that our manhole covers won't break and out of shape after 30 million times roller 
compaction. ) High strength, high elongation and high corrosion resistance's ductile cast iron be used as the raw material 
for making manhole covers. Its strength is much higher than No.45 superior carbon steel, 3~5 times higher than common
 cast iron covers. 10~30 times higher than cement, resin, steel fiber and so on.  
 
1. Manhole cover and road grate sample can be sent. 
2. Customer marking acceptable
3. AutoCAD design 
4.As the independent thrid part to check the product for oversea customer and supply the lawfull product quality report.
5.execute the BS EN 124 standard to promise the customer's product quality.
 
Please contact us for more information:            
All the pattern or words on the surface of manhole cover you need, we can manufacture it for you.I represent all my company members welcome every golbal friends to visit our company for our more development and good bussiness with you. 
Packaging & Shipping
Standard export packaging. Client's suggestions can be accepted.

name	Cast Iron Round with Lock Manhole Cover/Composite Manhole Cover
material	ductile iron GGG50/7, gray iron
standard	EN124/1433/1563
class	A15,B125,C250,D400,E600,F900
shape	Round
Size	600*600,840*840, 850*850 or as per customers' drawing
paint	bituminous black
advantage	Non-slip and safe, easy installation, easy to clean, excellent anti-pressure and attractive appearance
molding	DISA Line
process	Drawing-mould making-raw casting-sand blasting-rough machining-surface treatment-product inspection
application	footway, pedestrians, car parks, aircraft pavements
certificate	BSI, ISO9001:2000
Strict quality control	Tensile strength: 500Mpa                        Yield stress :  320Mpa Elongation rate :  7% Hardness: HBS170-230
Main products	Manhole covers and grates, Furnace, bases, Machinery parts, cookers, Valve bodies, pipe fittings, Auto parts
other information	we can cast and process any type of iron casting products according to customers' drawing or samples

   Size( customized available for other dimensions)

Order No.	Inner dia	grating	Outer dia	Height	Weight(kg)	Pressure(KN)
F0536-1	252 x 252	326 x 326	360 x 360	36	13.5	C250
F0536-2	350 x 350	400 x 400	470 x 470	40	20	C250
F0536-3	450 x 450	500 x 500	580 x 580	50	32	C250
F0536-4	550 x 550	600 x 600	680 x 680	50	39	C250
F0536-5	350 x 350	400 x 400	500 x 500	100	36.2	D400
F0536-6	450 x 450	500 x 500	600 x 600	100	49	D400
F0536-7	560 x 560	600 x 600	700 x 700	100	62	D400

Material composition:

Tensile strength	560Mpa	Yield strees	340Mpa
Elongation rate	7.5%	Hardness	210HBS
Material	GJS500-7(GGG50)	Standard	EN 124

WEIFANG SHENGAO

Manhole Cover Specifications (mm)
Loading	p	d	D	h	H
E600	640	700	820	70	100
D400	840	900	1065	70	113
	695	750	900	50	105
	640	700	820	70	100
	650	700	833	50	100
	600	695	820	50	110
	546	600	725	60	100
	315	360	470	50	80
C250	840	900	1065	70	113
	630	750	938	50	94
	640	700	820	70	100
	650	700	878	60	88
	593	650	798	52	80
	546	600	725	60	90
	450	500	618	60	100
	450	500	618	50	76
	315	360	470	50	80
B125	650	750	833	50	76
	650	700	833	50	90
	547	600	755	50	77
	315	360	470	38	60
	330	300	360	35	55
A15+	660	700	812	40	65
	562	600	712	40	65
	450	500	612	38	65
	632	700	800	30	470

1. Q: Why choose Shengao product?
     A: We shengao have our own plant-- Weifang Shengao machinery Co.,Ltd, therefore, we can surely promise the quality of every product and provide you comparable price.
 
2. Q: Do you provide OEM Service?
     A: Yes, we provide OEM Service.
 
3.  Q: Do you provide customized manhole cover?
      A: Yes. Customers give us drawings and specifications, and we will manufact accordingly.
 
4. Q: What is your payment term?
     A: We provide kinds of payment terms such as L/C, T/T, Paypal, Escrow, etc.

Cast Iron Round with Lock Manhole Cover/Composite Manhole Cover 
 
If you are looking for a reliable supplier, and want to produce manhole covers, please feel free to
contact us.