Product Made in Japan
Manufacturer: Okabe
Model: C10-0010

CS Rebar Joint is:

Mechanical joint for rebars by connecting them with a relay bolt.
Applicable for rebar diamiters of D13 to D51.
Compression of the sleeve is even available to the construction site.

Features

• Reliable joint strength ensures durability and stability.
• For convenience, quick tightening with a torque wrench is possible.
• To get started, only a one-day training session is required for qualification.
• Additionally, a portable crimping device is available for ease of use.
• The system allows for joining up to 2-size differences in diameters, enhancing versatility.
• It’s also capable of joining up to 1 rank difference in material, providing flexibility in application.

■Type I

Either side is axially movable and rotatable.

Dimension                                                                                                                     (mm)

Rebar Dia.	M	D	D2	L	RL	KL	R1	B	BL1	BL
D13	M14x2.0	21.3	24	80	53	27	54	19	16	32
D16	M18x2.5	25.6	30	95	62	33	66	24	20	40
D19	M20x2.5	30.1	32	102	63	39	78	27	22	44
D22	M24x3.0	33.5	37	115	70	45	90	32	26	52
D25	M27x3.0	39.9	43	129	83	46	92	36	30	60
D29	M30x3.5	44.9	49	144	88	56	112	41	33	66
D32	M33x3.5	48.2	52	155	97	58	116	46	36	72
D35	M36x4.0	53.5	57	170	111	59	118	50	40	80
D38	M39x4.0	57.6	61	187	121	66	132	55	43	86
D41	M42x4.5	62.9	65	195	127	68	136	60	47	94
D51	M52x5.0	78.5	83	243	154	89	178	75	57	114

* L, RL, KL, and R1 are standard dimensions obtained by calculation.

◆ Working procedures

■Type II

Although either side is non-rotatable, it is axially movable.

Dimension

Rebar Dia.	M	D	D2	L	RL	KL	R1	B	BL1	BH	BL	S	E
D13	M14x2.0	21.3	24	80	53	27	64	19	16	10	42	24	27.7
D16	M18x2.5	25.6	30	95	62	33	77	24	20	11	51	27	31.2
D19	M20x2.5	30.1	32	102	63	39	89	27	22	11	55	32	37.0
D22	M24x3.0	33.5	37	115	70	45	102	32	26	12	64	36	41.6
D25	M27x3.0	39.9	43	129	83	46	104	36	30	12	72	41	47.3
D29	M30x3.5	44.9	49	144	88	56	127	41	33	15	81	46	53.1
D32	M33x3.5	48.2	52	155	97	58	131	46	36	15	87	50	57.7
D35	M36x4.0	53.5	57	170	111	59	133	50	40	15	95	55	63.5
D38	M39x4.0	57.6	61	187	121	66	147	55	43	15	101	60	69.3
D41	M42x4.5	62.9	65	195	127	68	154	60	47	18	112	65	75.0
D51	M52x5.0	78.5	83	243	154	89	198	75	57	20	134	80	92.4

* L, RL, KL, and R1 are standard dimensions obtained by calculation.
◆ Working procedures

■Type III

Neither sleeve is movable nor rotatable, indicating a fixed position.

Sleeve dimension                                    Unit〈mm〉                                        Relay bolt dimension

Rebar name	M	D	D2	L	RL	KL	R1	C1	C2	B	BL1	BH	BL	S	E
D13	M14x2.0	21.3	24	106	53	53	117	5	37	19	16	8	69	22	25.4
D16	M18x2.5	25.6	30	121	62	59	139	5	47	24	20	11	87	27	31.2
D19	M20x2.5	30.1	32	129	63	66	156	5	51	12	22	12	95	30	34.6
D22	M24x3.0	33.5	37	144	70	74	178	5	59	26	26	14	111	36	41.6
D25	M27x3.0	39.9	43	163	83	80	193	5	67	36	30	16	127	41	47.3
D29	M30x3.5	44.9	49	186	88	98	233	10	79	41	33	18	145	46	53.1
D32	M33x3.5	48.2	52	199	97	102	246	10	86	46	36	20	158	50	57.7
D35	M36x4.0	53.5	57	218	111	107	258	10	92	50	40	21	172	55	63.5
D38	M39x4.0	57.6	61	237	121	116	281	10	99	55	43	23	185	60	69.3
D41	M42x4.5	62.9	65	253	127	126	306	15	112	60	47	25	206	65	75.0
D51	M52x5.0	78.5	83	308	154	154	377	15	134	75	57	31	248	80	92.4

* L, RL, KL, and R1 are standard dimensions obtained by calculation.

◆ Working procedures

Either side is axially movable and rotatable.

■Type IV (Different diameters)

Rebar Dia.

Rebar Dia.	RL-KL	R1	1BL	1D
D13-D16	53-62	27-33	65	41
D16-D19	62-63	33-39	77	47
D19-D22	63-70	39-45	89	53
D22-D25	70-83	45-46	96	61
D25-D29	83-88	46-56	107	68
D29-D32	88-97	56-58	119	74
D32-D35	97-111	58-59	122	81
D35-D38	111-121	59-66	130	88
D38-D41	121-127	66-68	139	95
D41-D51	127-154	68-89	162	109

Difference of 2 sizes          Unit〈mm〉

Rebar Dia.	RL-KL	R1	2BL	2D
D13-D19	53-63	71	43	27
D16-D22	62-70	83	51	30
D19-D25	63-83	90	57	36
D22-D29	70-88	106	64	40
D25-D32	83-97	109	71	45
D29-D35	88-111	120	78	48
D32-D38	97-121	129	84	55
D35-D41	111-127	132	92	60

* RL, KL, R1 and R2 are standard dimensions obtained by calculation.

Torque Value

Rebar Dia.		D13	D16	D19	D22	D25	D29	D32	D35	D38	D41	D51
Torque value	N・m	25	55	75	130	190	260	350	440	570	650	1010
	kg・m	3.0	6.0	8.0	13.5	19.5	27.0	36.0	45.0	58.5	66.5	103.5

Rebar cut length

Calculation examples (using Type I, D25)
Regarding case ①, when measuring 40d from the rebar insertion side of the sleeve: the rebar length is calculated as 40d + RL = 40 × 25 + 83 = 1,083mm.
Conversely, in case ②, when measuring 40d from the joint side of the sleeve: the rebar length changes to 40d KL = 40 × 25 – 46 = 954mm.

Table of standard rebar cut lengths (in case of 40d)                                            Unit〈mm〉

Rebar Dia.	40d	RL	KL		In case of [1]	In case of [2]
			Type I, II	Type III		Type I, II	Type III
D13	520	53	27	53	573	493	467
D16	640	62	33	59	702	607	581
D19	760	63	39	66	823	721	694
D22	880	70	45	74	950	835	806
D25	1,000	83	46	80	1,083	954	920
D29	1,160	88	56	98	1,248	1,104	1,062
D32	1,280	97	58	102	1,377	1,222	1,178
D35	1,400	111	59	107	1,511	1,341	1,293
D38	1,520	121	66	116	1,641	1,454	1,404
D41	1,640	127	68	126	1,767	1,572	1,514
D51	2,040	154	89	154	2,194	1,951	1,886

Disclaimer
Should a malfunction occur to the CS Rebar Joint, we will respond in accordance with the disclaimer below. We are not liable for the following cases:

• Malfunctions resulting from not following precautions specified in this catalog are not covered.
• Should there be any issues arising from design or work that contradicts the guidelines mentioned in this catalog, they are not included.
• The warranty does not cover malfunctions due to usage beyond the intended purposes as outlined in this catalog.
• Problems caused by work or handling based on non-standard specifications requested by users, such as designers or contractors, are excluded.
• Changes in specifications and performance post-delivery that lead to malfunctions fall outside our responsibility.
• Using, storing, or transporting the product under conditions that deviate from those generally anticipated for its development, manufacturing, and sales voids coverage for any resulting malfunctions.
• Force majeure events, including natural disasters, land deformation, ground subsidence, fires, explosions, riots, etc., that cause malfunctions are not our liability.
• Finally, defects not reported immediately after discovery are not eligible for claims.