Fixed Arc Step Aluminium Alloy Accommodation Ladder:
China Fixed Arc Step Aluminium Alloy Accommodation Ladder:
Aluminium Alloy Accommodation Ladder sometimes is called aluminium alloy gangway ladder, the steps are fixed and arc. It is the ladder for boarding & disembarking in the ocean going vessels. When it is not used, it is folded up on the deck.
It is composed of ladder frame, upper platform, lower platform, post, davit, safey net, turning device, close device, handrail, winch (electric winch, air winch or manual winch)
Technical Specification:
1. Standard: GB/T14360-1993 & ISO5488-79
2.Max Usage Angle: 55degree
3. Aluminium parts must be anodized, steel parts must be hot dip galvanized to resist the seawater.
4. Load Test for the ladder frame is necessary.
Main Size List(mm):
| No of Step | L | L1 | L2 | L3 | Max Height(H) | Step Space | Max use Angle |
| 12 | 5600 | 3600 | Decided when design | 850-2000 | 3620 | 300-(350) | 55°(60°) |
| 14 | 6200 | 4200 | 4100 | ||||
| 16 | 6800 | 4800 | 4590 | ||||
| 18 | 7400 | 5400 | 5080 | ||||
| 20 | 8000 | 6000 | 5800 | ||||
| 22 | 8600 | 6600 | 6300 | ||||
| 24 | 9200 | 7200 | 6800 | ||||
| 26 | 9800 | 7800 | 7300 | ||||
| 28 | 10400 | 8400 | 7800 | ||||
| 30 | 11000 | 9000 | 8300 | ||||
| 32 | 11600 | 9600 | 8800 | ||||
| 34 | 12200 | 10200 | 9300 | ||||
| 36 | 12800 | 10800 | 9800 | ||||
| 38 | 13400 | 11400 | 10300 | ||||
| 40 | 14000 | 12000 | 10800 | ||||
| 42 | 14600 | 12600 | 11300 | ||||
| 44 | 15200 | 13200 | 11800 | ||||
| 46 | 15800 | 13800 | 12300 | ||||
| 48 | 16400 | 14400 | 12800 | ||||
| 50 | 17000 | 15000 | 13300 | ||||
| 52 | 17600 | 15600 | 13800 | ||||
| 54 | 18200 | 16200 | 14300 | ||||
| 56 | 18800 | 16800 | 14700 | ||||
| 58 | 19400 | 17400 | 15100 | ||||
| 62 | 20600 | 18600 | 15500 | ||||
| 66 | 21800 | 19800 | 15900 | ||||
| 70 | 23000 | 21000 | 16300 |
* The length is customerized. The size in the list is just for reference.
