CB T34-2007 Mooring Chock

Material: Cast Steel

Standard: CB T34-2007

Model Type: Type AF/A/BF/B/C

Certificates: CCS, ABS, BV, LR, NK, RINA, etc.

Overview

Describe：

The CB T34-2007 is a specification for mooring chocks, which are devices used on ships to secure mooring lines. These chocks are essential for ensuring that the lines are properly secured and can withstand the forces exerted by the vessel and the environment. The size deviation of the fairlead should not be greater than ±4% of the basic size.The weight deviation of the fairlead should not be greater than ±6%.

Type：

Model	Type	Delivery status

Oblong cast steel chock	AF	Clad stainless steel
	A	Not coated stainless steel
Square and round cast steel chock	BF	Clad stainless steel
	BF	Not coated stainless steel
Round steel welded chock	C

Drawing of Type AF and Type A with a Size of 150~300mm :

CB T34-2007 Mooring Chock AF.png

Drawing of Type AF and Type A with a Size of 350~550mm :

CB T34-2007 Mooring Chock A.png

Specification of Type AF and Type A with a Size of 150~550mm ：

Nomanal size L (mm)	Max diameter of steel cable	Max circumference of hemp rope	Max diameter of synthetic fiber rope	L1	L2	H	H1	H2	B	C	R	R1	R2	R3	T	Weight of type A (kg)	Weight of type AF (kg)



																	Weight of coated stainless steel material	Weight after coating
150	16	125	30	300	270	110	260	202	129	40	55	130	115	65	12	15	6	21
200	18	140	35	368	334	150	318	250	143	42	75	159	142	72	12	21	8	29
250	20	160	40	430	394	200	380	308	155	44	100	190	172	78	12	27	9	36
300	22	190	45	500	460	250	450	372	169	52	125	225	205	85	15	43	12	55
350	24	220	50	560	518	250	460	378	179	55	125	230	209	90	15	51	16	67
400	26	250	60	632	586	250	482	394	195	60	125	241	218	98	18	76	20	96
450	30	270	70	700	650	250	500	406	209	62	125	250	225	105	20	102	26	128
500	36	290	80	760	708	250	510	412	219	65	125	255	229	110	20	115	32	147
550	44	310	90	830	775	280	560	460	229	70	140	280	253	115	24	135	38	172

Drawing of Type B and Type BF with a Size of 100~200mm:

CB T34-2007 Mooring Chock 3.png

Specification of Type B and Type BF with a Size of 100~200mm:

Nominal
size
L
(mm)
Max
diameter
of steel
cable
Max
Circumference
of hemp
rope
Max
diameter
of
synthetic
fiber rope
L1
L2
B
H
H1
H2
H3
R
R1
T
(T1)
(R2)
(R3)
Weight
of type
B
(kg)
Weight of type BF
(kg)
Weight of
coated stainless steel material
Weight after coating
100
14
75
18
35
170
60
76
141
30
35
38
73
12
10
30
18
4
1
5
150
16
94
22
50
250
90
110
205
45
50
55
105
16
12
45
29
11
3
14
200
18
126
28
70
340
120
150
280
60
70
75
145
20
16
60
40
24
5
29

Drawing of Type B and Type BF with a Size of 250~550mm:

CB T34-2007 Mooring Chock 1.png

Specification of Type B and Type BF with a Size of 250~550mm:

Nominal size L (mm)	Max Diameter Of steel cable	Max Circumference Of hemp rope	Max Diameter of Synthetic Fiber rope	L1	L2	L3	L4	B	H	H1	H2	H3	R	R1	R2	R3	r1	r2	T	T1	Weight of type A (kg)	Weight of type AF (kg)






																						Weight of coated stainless steel material	Weight after coating


250	20	160	40	92	100	250	434	160	200	372	80	92	100	192	80	56	20	15	24	20	48	5	53
300	22	190	45	114	110	300	528	200	250	464	100	114	125	239	100	72	25	20	28	22	83	7	90
350	24	220	50	125	125	350	600	220	250	485	110	125	125	250	110	80	30	20	30	22	103	10	113
400	26	250	60	136	135	370	672	240	250	506	120	136	125	261	120	88	30	20	32	25	136	12	148
450	30	270	70	148	150	400	746	260	250	528	130	148	125	273	130	94	30	20	36	28	184	14	198
500	36	290	80	160	175	450	820	280	250	550	140	160	125	285	140	100	30	20	40	30	232	16	248
550	44	310	90	172	190	500	894	300	260	570	145	165	125	300	150	106	32	22	44	33	280	20	300

Drawing of Type C with a Size of 120~320mm:

Specification of Type C with a Size of 120~320mm:

Nominal size L (mm)	Max diameter of steel cable	Max circumference of hemp rope	Max diameter of synthetic fiber rope	L1	B	B1	d	R	R1	t	Weight (kg)




120	-	90	40	270	80	220	30	40	8	5	4
160	15	125	45	360	110	300	40	55	8	5	9
200	18.5	160	50	450	130	350	50	65	8	8	18
260	22.5	200	60	570	170	440	60	85	8	8	30
320	28	230	70	700	200	500	70	100	8	10	49

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