B Type Marine Cargo Hold Spiral Ladder

The marine cargo hold spiral ladder is designed to meet the specific needs and challenges of Marine transportation. It has many notable features and advantages that make it an important part of the cargo hold of cargo ships. One of the main advantages of this ladder is that it is suitable for larger vessels. It is suitable for ships with a gross tonnage of more than 300 tons, and has excellent anti-skid performance and reasonable structural design.

Overview

B type marine cargo hold spiral ladder using at cargo hold on boat, ships, it is design and manufactur accoding to standard CB/T 801-2001.

Type chart

Type

Name

Ladder width

Story height

Ladder height

Ladder frame size

Marine cargo hold spiral ladder

≈600

5000~12000

4500~8000

Φ273

t=7

8250~11500

t=9

Structural drawing

Size parameter

No.	Hc	H	H1 ≈	Step Quantity	Weight(kg)
1	5000	4500	250	19	541
2	5200	4750	200	20	570
3	5400	5000	150	21	600
4	5600	5000	350	21	600
5	5800	5250	300	22	629
6	6000	5500	250	23	658
7	6200	5750	200	24	687
8	6400	6000	150	25	716
9	6600	6000	350	25	716
10	6800	6250	300	26	745
11	7000	6500	250	27	774
12	7200	6750	200	28	804
13	7400	7000	150	29	833
14	7600	7000	350	29	833
15	7800	7250	300	30	862
16	8000	7500	250	31	891
17	8200	7750	200	32	920
18	8400	8000	150	33	949
19	8600	8000	350	33	949
20	8800	8250	300	34	1089
21	9000	8500	250	35	1122
22	9200	8750	200	36	1154
23	9400	9000	150	37	1187
24	9600	9000	350	37	1187
25	9800	9250	300	38	1219
26	10000	9500	250	39	1252
27	10200	9750	200	40	1284
28	10400	10000	150	41	1317
29	10600	10000	350	41	1317
30	10800	10250	300	42	1349
31	11000	10500	250	43	1382
32	11200	10750	200	44	1414
33	11400	11000	150	45	1447
34	11600	11000	350	45	1447
35	11800	11250	300	46	1479
36	12000	11500	250	47	1512
Remarks: 1、H2 and H3 as user's option: 2、The weight is just within the range of H ,excluding the part out of this range and the handrail.