Galvanized steel driveway grating heavy duty metal bearing bar steel grid
Bearing bar
- A flat bar withstanding the main load is in consistent with the span direction .
bearing bar pitch
- the distance center to center of the two bearing bars.
Cross bar
- the connecting bars , made from twisted bar ,round bar or flat bar, which extend across the bearing bars
Cross bar pitch
- the distance center to center of the two adjacent cross bars.
Length
(span)- the maximum dimension of a grating panel ,measured parallel to the bearing bar ,and in the same direction as the bearing bars .
Width
- the maximum dimension of a grating panel ,perpandicular to the bearing bars .and in the same direction as the cross bars.
Width
- the maximum dimension of a grating panel ,perpandicular to the bearing bars .and in the same direction as the cross bars.
Name | steel grating |
Type | flat bar, I-bar, serrated bar, serrated I bar |
Bearing bar size | 20*3, 20*5, 25*3, 25*5, 32*3, 32*5, 35*3, 35*5, 40*3, 40*5, 45*5, 50*3, 50*5, 55*5, 60*5, 65*5mm etc |
Bearing bar spacing | 15, 20, 25, 30, 33, 35, 38, 40, 50, 60, 80, 90mm |
Cross bar spacing | 24-200mm |
surface | Black, Hot dip galvanized, painted |
standard | YB/T4001.1-2007, ANSI/NAAMM(MBG531-88),BS4592-1987, AS1657-1985 |
Our Advantages
A. Steel Grating, including plain and serrated steel grating, size and specification can be produced according to customer's requirements.
B. Stair Tread: There are 8 types of treads distinguished by different nosing & way of installation.
C. Drainage Pit/Trench Cover
D. Railing & Stanchion
Total Staff: About 300, including 50 managers, 10 technical engineers.
Total Area: 25, 000 square meters and with workshop area of 18, 000 square meters.
Main Equipment: 8 press-welding machines
Management System: ISO9001: 2008
Advantage: High quality, Professional engineer, and Large production Capability



Standard Grating Packing Method:
1. Bandage and Paperboard: Generally applies to neat steel plate;
2. Screw Locking Method: Use 4 screw rods through the aperture of the steel grid, for high strength;
3. Steel Pallet: Traditional export packing. (Hot Dipped Galvanized Steel Gratings for Ditch Cover Plate)
FAQ:
Q1.What is the package?
1. Steel pallets, then plastic film in the surface.
2. Stow wood, or wooden tray with steel strip.
3. According to your packing requirements.
Q2.How to visit our factory?
You can fly to Hebei first and then take high-speed rail to Hengshui. We welcome your arrival.
Q3.The quantity of our purchase is very large, may I have a discount?
The price we quote is base on factory price, which is very competitive; But if your quantity is very large, We will apply for the very lowest price for you.
Q4.What 's your delivery time?
For one container products, normally 12-15days after your payment, we can finish the production. For large amount, we will discuss the time.