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Model B&Bf Engine Room Inclined Ladder

Model	Ladder Frame Type	Step Type	Deck Height H	Gradient ɑ（°）	Width B
B	2XL50X50X4 (For Inland Vessel)	Square Steel	500～2800	55 60 65	450 600 750

Bf	2XL50X50X6 (For Ocean Vessel)

Remarks: The Model With f means inclined ladder which with dust guard plate.

Main Size And Weight of Model B 、Model Bf Engine Room Inclined Ladder
Step QTY	Main Dimensions						Weight(kg) ɑ=55°							Weight(kg) ɑ=60°							Weight(kg) ɑ=65°
	H	H1	H2	H3	t1	t2	Length (mm)	B=450		B=600		B=750		Length (mm)	B=450		B=600		B=750		Length (mm)	B=450		B=600		B=750
	H	H1	H2	H3	t1	t2	Length (mm)	B	Bf	B	Bf	B	Bf	Length (mm)	B	Bf	B	Bf	B	Bf	Length (mm)	B	Bf	B	Bf	B	Bf
1	500	0	200	170	6	6	452	16	18	18	20	19	22	427	15	17	17	19	18	20	408	15	16	16	18	17	20
2	600	210	160	100	6	6	574	20	23	22	25	24	24	543	19	21	21	24	22	26	519	18	20	20	23	21	25
2	700	230	180	160	6	6	696	25	27	27	31	28	33	658	23	26	26	29	27	31	629	22	25	25	28	26	30
2	800	270	220	180	6	6	818	29	32	32	36	33	39	774	27	30	30	34	32	37	740	26	29	29	32	30	35
3	900	230	170	140	6	6	940	33	37	36	41	38	44	889	31	35	35	39	36	42	850	30	33	33	37	35	40
3	1000	250	200	170	6	8	1062	45	49	48	54	51	58	1005	41	46	46	51	48	55	960	41	44	44	49	46	52
4	1100	230	180	100	6	8	1184	49	54	56	60	56	64	1120	47	51	51	57	53	61	1071	45	49	49	54	51	58
4	1200	250	200	120	6	8	1306	54	59	59	66	62	70	1236	51	56	56	62	59	67	1181	49	54	54	60	56	64
5	1300	220	170	120	6	8	1429	59	65	64	72	67	77	1351	56	61	61	68	64	72	1291	54	59	59	65	61	70
5	1400	240	190	120	6	8	1551	64	70	69	77	73	83	1467	61	66	66	73	69	79	1402	58	64	64	70	66	76
5	1500	250	200	170	8	10	1673	69	75	75	83	78	89	1582	65	71	71	79	74	85	1512	62	68	68	76	71	81
6	1600	230	180	140	8	10	1795	74	81	80	89	84	96	1697	70	76	76	84	79	91	1623	67	73	73	81	76	87
6	1700	240	200	170	8	10	1917	78	86	85	95	89	102	1813	74	82	82	90	85	97	1733	71	78	78	86	81	92
7	1800	225	175	145	8	10	2039	83	91	90	101	95	108	1928	79	87	87	96	90	103	1843	75	83	83	91	86	98
7	1900	240	190	140	8	10	2161	88	97	96	107	100	115	2044	83	92	92	101	96	109	1954	80	88	88	97	91	104
7	2000	250	200	170	8	10	2283	93	102	101	113	106	121	2159	88	97	97	107	100	115	2064	84	92	92	102	96	110
8	2100	235	175	140	8	10	2405	100	100	108	121	114	130	2275	95	104	104	115	108	123	2174	91	99	99	110	103	118
8	2200	245	195	160	8	10	2527	105	115	114	127	119	136	2390	99	109	109	120	113	129	2285	95	104	104	115	108	123
9	2300	235	180	150	8	12	2650	120	120	119	133	125	142	2506	104	114	114	126	118	135	2396	100	109	109	120	113	129
9	2400	250	190	160	8	12	2772	114	126	124	139	130	149	2621	108	119	119	131	123	141	2506	104	114	114	126	118	135
9	2500	240	200	170	8	12	2894	119	131	129	144	136	155	2737	113	124	124	137	129	147	2616	108	119	119	131	123	140
10	2600	230	190	165	8	12	3016	124	136	135	150	141	161	2852	118	129	129	142	134	153	2727	113	124	124	136	128	146
10	2700	245	195	170	8	12	3138	129	141	140	156	147	167	2968	122	134	134	148	139	159	2837	117	128	128	142	133	152
11	2800	235	185	135	8	12	3260	134	417	145	162	152	174	3083	127	139	139	154	144	165	2947	121	133	133	147	138	158