Outdoor Metal Manhole Cover Grating 25*3 Circular Galvanised Grate
Outdoor Metal Circular Sewer Anti-Rust Grille Cover Plate Welded
Steel Grating
Welded Steel Grating Introduction
Cooking plate cover is also known as "ditch cover", "shajing
plate", "ditch cover plate", it USES the steel grid plate pressure
welding and become, is simple in construction installation, light
weight, good bearing and impact resistant capability is strong,
good drainage, product surface after dealing with the hot
galvanizing is beautiful, rustproof, has cast iron ditch cover
plate incomparable advantages.
It is mainly used in some factories and high-grade residential
areas, which is mainly because the cement trench cover is often
crushed, and the road surface is damaged.
Therefore, the trench cover plate made of steel grid plate is
suitable for different load loads.
Due to the ditch cover plate construction is simple, light weight,
good bearing capacity, impact resistance, bending rather than
breaking, large displacement, after hot dipping zinc treatment,
beautiful and durable, anti-corrosion, with the advantages of cast
iron cover plate incomparable.
Welded Steel Grating Specifications
| Item | Bearing bar pitch | Cross bar pitch | Bearming bar (Depth * Thickness) |
| 20*3 | 25*3 | 32*3 | 40*3 | 20*5 | 25*5 |
| 1 | 30 | 100 | G203/30/100 | G253/30/100 | G323/30/100 | G403/30/100 | G205/30/100 | G255/30/100 |
| 50 | G203/30/50 | G253/30/50 | G323/30/50 | G403/30/50 | G205/30/50 | G255/30/50 |
| 2 | 40 | 100 | G203/40/100 | G253/40/100 | G323/40/100 | G403/40/100 | G205/40/100 | G255/40/100 |
| 50 | G203/40/50 | G253/40/50 | G323/40/50 | G403/40/50 | G205/40/50 | G255/40/50 |
| 3 | 60 | 50 | | G253/60/50 | G323/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
| Item | Bearing bar pitch | Cross bar pitch | Bearming bar (Depth * Thickness) |
| 32*5 | 40*5 | 45*5 | 50*5 | 55*5 | 60*5 |
| 1 | 30 | 100 | G325/30/100 | G405/30/100 | G455/30/100 | G505/30/100 | G555/30/100 | G605/30/100 |
| 50 | G325/30/50 | G405/30/50 | G455/30/50 | G505/30/50 | G555/30/50 | G605/30/50 |
| 2 | 40 | 100 | G325/40/100 | G405/40/100 | G455/40/100 | G505/40/100 | G555/40/100 | G605/40/100 |
| 50 | G325/40/50 | G405/40/50 | G455/40/50 | G505/40/50 | G555/40/50 | G605/40/50 |
| 3 | 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |
| Materials | low carbon steel, Stainless steel |
| Surface Treatment | Hot dipped galvanized, Painted, Untreated |
| Shape of bearing Bars | Plain bar, 1 bar, Serrated bar, Serrated-1 bar |
| USA | UK | AUSTELIA | CHINA |
| Grating standard | ANSI/NAAMM(MBG531-88) | BS4592-1987 | AS1657-1988 | YB/T4001-2007 |
| Steel Standard | ASTM(A36) | BS4360(43A) | AS3678 | AS1650 |
| Galvanized Standard | ASTM(A123) | BS729 | GB700-88 | GB/T13912-2002 |
1, usually we can according to the production of different
materials, the trench cover plate is divided into hot dip zinc
trench cover plate, stainless steel trench cover plate, spray
trench cover plate, etc.
2. According to the shape of trench cover plate, it can be divided
into: ordinary trench cover plate, U-shaped trench cover plate,
tubular trench cover plate and open trench cover plate.
Welded Steel Grating Application:
The specific use of steel grating: aisle, ventilation, fences,
mooring dock, trestle, the frame and frame, pedestrian overpass,
drilling platform, transmission corridor bridge, bridge footpath,
trench cover, ventilation window, railway across the aisle, manhole
and lighting, anti-theft doors and Windows, airport fence, trash
rack, wall fence, painting room (mainly automotive paint and
furniture paint), storage shelves, equipment, sidewalks,
billboards, livestock pens, equipment safety bar, pipe gallery
landing pier, scaffolding, Marine pedal, washing, van, grating,
shading box at the top of the aisle, platform, ladder pedals,
Marine workboat, feeder walkway.
Welded Steel Grating Advantages:
1. Beautiful appearance: simple lines, silver appearance, modern
trend.
2, the best drainage: water leakage area of 83.3%, more than twice
as much as cast iron.
3, hot dip galvanizing: strong rust resistance, maintenance and
replacement free.
4, anti-theft design: cover and frame with hinge connection,
anti-theft, security, easy to open.
5, save investment: large span, heavy load, lower than cast iron
price and save the cost of being stolen or crushed replacement.
6, high strength: strength and toughness is much higher than cast
iron, can be used for wharves, airports and other large span and
heavy load environment.
7, specifications: to meet the different environment, load, span,
size and shape required.
The product has the advantages of simple construction, light
weight, good bearing capacity, impact resistance, bending rather
than folding, large displacement, beautiful and durable after hot
dipping zinc treatment, anti-corrosion, and has the advantages of
cast iron cover plate.
It adopts hinge connection or hook connection, which is easy to
open and has anti-theft function.
Welded Steel Grating Process:
The process design of steel grid plate is to arrange the material
according to the geometrical information of the sheet according to
the size of the original plate, and the ultimate goal is to make
the material cutting plan take into account the maximum utilization
rate of the material and higher production efficiency.
Welded Steel Grating installation:
The connection mode of steel grid plate is fixed and installed with
buckle connector, which is composed of three parts.
Hot Dip Galvanized Steel Grating Package delivery:
Delivery when will we have a professional inspectors to check the
quality of the product is unqualified, such as qualified will paste
the qualified product certificate, and then fixed by shipping
packaging, packaging with the steel plate on the metal tray, and
then fixed with metal packing tape, finally wrapped by plastic film
packaging, general each pallet packing 1-2 tons of cargo, in order
to convenient for unloading and storage after the arrival of the
goods. The unqualified products will be recalled by our quality
inspector.
Pre-sale service:
After the customer orders, we will have professional technical
personnel to contact with the customer, in order to meet the
customer's technical inquiry and production schedule.
