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Hinged and Bolt Lock Down Grates

plastic film outside, then in pallet or according to the customers\' requirement
Place of Origin: 
Hebei, China (Mainland)

Basic Info

Model No.: BYSG34

Product Description

Hinged and Bolt Lock Down Grates:


Specifications of hinged grates
No Item Description
1 Bearing bar 20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50…75x8mm, etc.
2 Bearing bar pitch 25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc.
3 Cross bar 5x5, 6x6, 8x8mm (twisted bar or round bar)
4 Cross bar pitch 40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers’ requirement.
5 Surface treatment Untreated, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers’ requirement.
6 Flat bar type Plain, Serrated (tooth-like), I bar (I section)
7 Material standard  Low carbon steel (CN: Q235, US: A36, UK: 43A)
8 Galvanization standard CN: GB/T13912, US: ASTM (A123), UK: BS729
9 Steel grating standards A. China: YB/T4001-1998
C. UK: BS4592-1987
D. Australia: AS1657-1988
E: Japan: JJS


Hinged grates standards:

A. China: YB/T4001-1998


C. UK: BS4592-1987

D. Australia: AS1657-1988

E: Japan: JJS


Flooring galvanized hinged grates is made by Carbon or mild steel of certain sizes through the processing of grooving, cutting, press-welding, and galvalizing. Gratings can be actually made from copper, aluminum and other materials. However, galvanized steel grating is the widely used for its economical cost and excellent properties.


Application of hinged grates:

Steel grating, with exquisite design and robust spanning abilities, is very strong and safe for the floor support  and elevated walkway. It can be used for ceiling, interior decoration, decoration, platform aisle, ventilation windows,( 54214126,Wells), advertising plaque and other construction.


Materials of hinged grates:
Q235, A36, etc.

Advantages of hinged grates:

Steel grating offers the following advantages compared with steel grid sheets:
Steel grating has light weight, good strength, large carrying capacity and can save materials and cost. It has good ventilation of light and wind, a modern sense, aesthetic appearance and anti-skid. It is also easy to clean, easy to installation and durable service time for uses.

Specific application of hinged grates:

Steel grating products are designed and manufactured for various industrial and civil constructions in city road, gardens, yard, airport, railway and industrial engineering, and they offer the following the features



Features of hinged grates:

Aesthetic outlook: Simple lines and silver appearance meeting the modern trend.

The best drainage: Leakage area of 83.3 percent, more than twice of cast iron products.
Hot-dip galvanized treatment: Good rust-proof property, maintenance-free replacement.
Anti-theft design: The cover and the frame is joint with hinge offering security, safety and open convenience.

Savings investments: Large-span. Less lost for heavy load compared with cast iron products. Cost can be saved for the risk of being stolen or crushing one if cast iron is uses.

High strength: The strength and the toughness are much higher than cast iron. Can be used for terminals, airport and other large-span and heavy loading condition.
Specifications: More specifications and sizes optional for meeting various environment, load, span, sizes and shapes.

Surface Treatment of hinged grates:
Untreatment: black

Treatment: hot dip galvanied 






Installation of hinged grates

There are two ways of installation for grating.

*One way is by welding and the other is by installation fastenter. The welding method is suitable for those parts which will be fixed forever, such as platforms for equipments, while the method by installation fastener has the properties of easy to assemble and disassemble and of preventing destroying the zinc layer.

*Installation fastener is suitable for all types of gratings. It is made of up-fastener, down-fastener and inside turret cylinder bolt M10.

Packing: Packed with wooden pallets or customer decided



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