Marine Aluminum Pipe Vertical Ladder

CB/T 670-94 (Replaces CB 670-68)

Diagram

The image contains a technical drawing of an aluminum pipe vertical ladder on the left side, showing its overall structure, dimensions (with a marked ladder width B = 325mm and ladder length L = 1500mm in the example), and installation details. The right side presents a table of specifications.

Specification Table

Number of Steps	Floor Height of Steps (mm)	L (mm)	H (mm)	t (mm)	Weight (kg) for B = 325	Weight (kg) for B = 400
2	800 – 1000	600	150	6	3.65	3.73
2	900 – 1000	800	250	6	4.07	4.15
3	1150 – 1300	1000	200	6	4.71	4.83
4	1400 – 1600	1200	150	6	5.34	5.55
4	1500 – 1600	1400	250	6	5.76	5.92
5	1750 – 1900	1600	200	6	6.40	6.60
6	2000 – 2200	1800	150	6	7.03	7.27
6	2100 – 2200	2000	250	6	7.46	7.70
7	2350 – 2500	2200	200	8	8.43	8.71
8	2600 – 2800	2400	150	8	9.06	9.38
8	2700 – 2800	2600	250	8	9.85	10.17
9	2950 – 3100	2800	200	8	10.48	10.84
10	3200 – 3400	3000	150	8	11.11	11.51
10	3300 – 3400	3200	250	8	11.54	11.94
11	3550 – 3700	3400	200	8	12.17	12.61
12	3800 – 4000	3600	150	8	12.8	13.28

Marking Example

An aluminum pipe vertical ladder with a ladder width B = 325mm and ladder length L = 1500mm:
Aluminum Pipe Vertical Ladder 325×1500mm CB/T 670-94

Attention please: The description might be incorrect, please contact us for confirmation.
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