
Product description
Stair tread is made of steel grating & widely used for different types of steel ladders, featuring easy installation, strong structure & aesthetic appearance, & without logged water. We can fabricate according customers’ sizes.
Feature
Easy installation, nothing complicated
Good Ventilation, lighting, cooling, explosion-proof, non-slip performance
High strength, light structure, durable
Easy cleaning, anti-dust and dirt
Specification
Stair tread
SJH stair treads can be made of any kind of steel grating. Can be divided into 4 basic groups:
WT1: Installed by welding, without nosing;
WT2: Installed by bolt, without nosing;
WT3: Installed by welding, with nosing;
WT4: Installed by bolt, with nosing.
1) Material:
Mild Steel (Low Carbon Steel) or Stainless Steel
2) Surface Treatment:
Painting or Hot dip Galvanizing
Bearing bar size(mm X mm): 20 X 3, 25X3, 30X3, 25X5, 30X5...40X 8...100 X 10.
Bearing bar pitch(mm): 12.5, 15, 20, 30, 30.6, 32.5, 34, 34.8, 35.3, 40, 60, 80...Can also be as per clients' requirements, 20, 30, 40 is recommended.
Cross bar( transverse bar) pitch(mm): 38.1, 50, 50.8, 70, 75, 80, 99, 100, 101.6, 102...Can also be as per clients' requirements. 50, 100 is recommended.
Recommended Stair Tread Widths
T1,T2,T3,T4,T5,T6 Bearing bars at 30mm pitch |
95 |
125 |
155 |
185 |
215 |
245 |
275 |
T1,T2,T5,T6 Bearing bars at 40mm pitch T3, T4 |
125 |
165 |
205 |
245 |
285 |
||
115 |
155 |
195 |
235 |
275 |
|||
Fixing hole centers |
45 |
75 |
100 |
150 |
Note: based on 5mm bearing bars.
Max. Stair Tread Lengths
Bearing bar measure Steel grating specification |
253 |
25×5 |
32×5 |
Bearing bars at 30mm pitch |
550 |
900 |
1300 |
Bearing bars at 40mm pitch |
450 |
750 |
1200 |
Application
Steel stair grating is widely used in the platform, corridor, bridge, well covers, stairs, fencing for petroleum, chemical, power plant, waste treatment plant, civil engineering projects and environmental projects.
Tianjin Shunjinhua Machinery Manufacturing Co Ltd