With nosing Galvanzied Steel Stair Treads Bearing Bar 25mm x 3mm
With nosing Galvanzied Steel Stair Treads Bearing Bar 25mm x 3mm
Grating Step plate also called stair grating, stair steel, is mainly used for platform stair, and divided into two kinds: welding installation and bolts installation.
Welded stair grating, just welded the stair grating to the ladder beam, no need side plate, this is more economic, durable, but not easy for unfixing; bolt stair grating, it is need side plate when install, for the bolt hole is on the side plate, use bolts fix stair grating to the ladder beam, this can recycle used. This is according to clients’ demands.
Welded step plate:T1,T3,T5
Bolt step plate:T2,T4,T6
Step plate width for usual is between 0.5m-1m
Step plate size mark :
T4-—(RA325/30) : T4—step plate type ,RA325/30--steel grating size
Step plate size tolerance:width:W±3mm,length: L-3mm
Feature and usage:
- Easy installation, nothing complicated
- Good Ventilation, lighting, cooling, explosion-proof, non-slip performance
- High strength, light structure, durable
- Easy cleaning, anti-dust and dirt
Step plate can be widely used in factories like powder plant, water works, and used as platform and aisle in the fields of public works, Environmental Engineering , theater, visiting platform, parking lot and so on.
Main Parameter
Recommended width:
For lower cost, we suggest clients use module width, for example: series 1 use 125,155,185,215,245,275mm, series 2 use 125,165,205,245,275mm etc, and for length, it is multiple of 100mm, such as 500,600,700,800,900,1000,1200mm and so on.
Recommended length table:
| Max length(mm) | ||||
| Flat Steel section size | 25×3 | 25×5 | 32×5 | 40×5 |
| Series 1 | 550 | 900 | 1300 | 1600 |
| Series 2 | 450 | 750 | 1200 | 1500 |
| Series 3 | — | 550 | 850 | 1350 |
Bolt center distance of (T2 and T4)(mm)
| “A”(bolt hole center distance) | 45 | 75 | 75 | 100 | 100 | 150 | 150 |
Front fender:Size 65mm*5mm, or as your requirements
Welded standard:Two side plates is single welded with each loading bar, welding line is not less than 3mm.
Specification of steel grid mesh
| series | Series distance | Traverse line distance | Load flat specifications (widexthick) | |||||
| 20x3 | 25x3 | 32x3 | 40x3 | 20x5 | 25x5 | |||
| 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 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
| series | Series distance | Traverse line distance | Load flatspecifications (widexthick) | |||||
| 32x5 | 40x5 | 45x5 | 50x5 | 55x5 | 60x5 | |||
| 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 |
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