- Balustrades & Handrails[10]
- Drains[1]
- Ceiling Tiles[1]
- Door & Window Grates[6]
- Ladders[4]
- Work Platforms[4]
- Metal Building Materials[8]
- Stairs[10]
- Other Fasteners[2]
- Fencing[10]
- Other Steel Products[8]
- Steel Structures[10]
- Structural Steel[8]
- Iron Wire Mesh[1]
- Steel Wire Mesh[2]
galvanized steel stair inclined platform ladder
1.Full range of steel gratings.
2.4 running lines with more than 20,000 tons per year.
3.ISO9001:2008 quality system
"Wanjie" brand steel ladders(inclined ladders,vertical ladders&revolving ladders) are manufactured as per construction steel ladder atlas 02J401, which are made up of stair treads and protective baluster. Customized type is also available. The galvanized surface treatment makes the appearance attractive and it is easy to installation and maintenance. Wanjie steel ladders are one-time completion inside the factory and you can also choose local connections with our standard handrails
.
Type | W-- welded steel grating L-- pressure-locked C-- socket-welding |
Bearing bar centers | 15-30, 40, 60, 80, 90 mm etc. with 30, 40 mm recommended. |
Cross bar centers | any greater than 30mm is ok. with 50, 100mm recommended. |
Surface treatment | G-hot-dip galvanization(G is usually omitted) P-painting U- untreated |
Bearing bar shape | F- plain surface (F is usually can be omitted) S-serrated surface I-the section is of ‘I’ type |
WT1: welding fixing stair tread without front plate nosing.
WT2: bolt fastening stair tread without front plate nosing(adopting 65*5mm plate as end bar).
WT3: welding fixing stair tread with front chequered plate nosing.
WT4: bolt fastening stair tread with front chequered plate nosing(adopting 65*5mm plate as end bar).
Recommended width of stair treads:
Bearing bar centers | type | Width of stair treads(mm) | ||||||
30mm | T1 T2 T3 T4 | 95 | 125 | 155 | 185 | 215 | 245 | 275 |
40mm | T1 T2 |
| 125 | 165 |
| 205 | 245 | 285 |
40mm | T3 T4 |
| 115 | 155 |
| 195 | 235 | 275 |
Spiral hole pitch(mm) | 45 | 75 | 100 | 150 |
Remarks: bearing bar width is 5mm. As to 3mm in width, all the values in the form should subtract 2mm.
Maximum length of stair treads:
Specialization /size | 25×3 | 25×5 | 32×5 |
Bearing bar pitch at 30mm | 550 | 900 | 1300 |
Bearing bar pitch at 40mm | 450 | 750 | 1200 |