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RRH

RRH Series cylinders are double-acting hollow plunger cylinders built for both pull and push forces. Capacities run from 30 kN to 150 kN across ten models, with strokes from 38 mm to 258 mm and center hole diameters from 34 mm to 79 mm. Because the plunger is hollow, a threaded rod, cable or tendon can pass straight through, so one cylinder can tension, pull or lift. Relief valves protect against over pressurizing, the plunger is hard chrome plated, the body carries a powder coat finish, and every model comes with an SQB-3/8UF female coupler and dust cap.

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Product Parameters

Handle type	Model Number	Cylinder Capacity (ton(kN))	Stroke (mm)	Max. Cylinder Capacity Push (kN)	Max. Cylinder Capacity Pull (kN)	Cylinder Effective Area Push (cm²)	Cylinder Effective Area Pull (cm²)	Oil Capacity Push (cm³)	Oil Capacity Pull (cm³)	Coll. Height A (mm)	Ext. Height (mm)	Out. Diam. D (mm)	Cyl. Bore Diam. E (mm)	Plngr. Diam. F (mm)	Cyl. Base to Adv. Port H (mm)	Cyl. Top to Return Port I (mm)	Saddle Diam. J (mm)	Saddle Protr. Fr. Plngr. K (mm)	Plunger Internal Thread O (in)	Plunger Thread Length P (mm)	Collar Thread W (in)	Collar Thread Length X (mm)	Center Hole Diam. Y (mm)	Bolt Circle U (mm)	Base Mounting Thread V (in)	Thread Depth Z (mm)	Weight (kg)
(S) ▲	RRH-307	30(326)	178	326	213	46.6	30.4	829	541	330	508	114	88.9	63.5	25	60	63	9	1 13/16"-16	22	4 1/2"-12	42	33.3	92.2	3/8"-16	15.7	21.65
(S) ▲	RRH-3010	30(326)	258	326	213	46.6	30.4	1202	784	431	689	114	88.9	63.5	25	60	63	9	1 13/16"-16	22	4 1/2"-12	42	33.3	92.2	3/8"-16	15.7	27.65
(S) ▲	RRH-603	60(576)	94	576	380	82.3	54.2	733	482	247	336	159	123.9	92.2	31	66	91	12	2 3/4"-16	19	6 1/4"-12	48	54.1	130	1/2"-13	14	29.6
(S) ▲	RRH-606	60(576)	166	576	380	82.3	54.2	1366	900	323	489	159	123.9	92.2	31	66	91	12	2 3/4"-16	19	6 1/4"-12	48	54.1	130	1/2"-13	14	36.6
(S) ▲	RRH-6010	60(576)	257	576	380	82.3	54.2	2115	1393	438	695	159	123.9	92.2	31	66	91	12	2 3/4"-16	19	6 1/4"-12	48	54.1	130	1/2"-13	14	46.6
(S) ▲	RRH-1001	95(931)	38	931	612	133	87.4	505	333	165	203	212	165.1	127	38	44	126	12	4"-16	25	—	—	79.5	177.8	5/8"-11	19	36.6
(S) ▲	RRH-1003	95(931)	76	931	612	133	87.4	1011	666	254	330	212	165.1	127	38	85	126	12	4"-16	25	8 3/8"-12	60	79.5	177.8	5/8"-11	19	64.6
(S) ▲	RRH-1006	95(931)	153	931	612	133	87.4	2035	1337	342	495	212	165.1	127	38	85	126	12	4"-16	25	8 3/8"-12	60	79.5	177.8	5/8"-11	19	82.6
(S) ▲	RRH-10010	95(931)	257	931	612	133	87.4	3420	2246	460	717	212	165.1	127	38	85	126	12	4"-16	25	8 3/8"-12	60	79.5	177.8	5/8"-11	19	109.6
(S) ▲	RRH-1508	145(1429)	203	1429	718	204.1	102.6	4144	2083	349	552	247	190.5	152.4	38	60	127	4	4 1/4"-12	25	—	—	79.5	214	5/8"-11	15	116

Working Condition Example

Size Chart

Model	Cylinder Capacity (kN)		Stroke (mm)	Effective Area (cm²)		Cylinder Volume (cm³)		Body Height A (mm)	Outside Diameter D (mm)	Plunger Diameter F (mm)	Center Hole Diameter Y (mm)	Weight (kg)
Model	Advance	Retract	Stroke (mm)	Advance	Retract	Advance	Retract	Body Height A (mm)	Outside Diameter D (mm)	Plunger Diameter F (mm)	Center Hole Diameter Y (mm)	Weight (kg)
RRH-307	30	23	178	47.7	32.4	849	576	331	115	63	34	21
RRH-3010	30	23	258	47.7	32.4	1230	836	431	115	63	34	27
RRH-603	60	42	89	84.2	56.2	749	500	248	160	92	53	28
RRH-606	60	42	165	84.2	56.2	1389	927	324	160	92	53	35
RRH-6010	60	42	257	84.2	56.2	2164	1444	438	160	92	53	45
RRH-1001	100	68	38	135.2	87.1	513	331	166	212	127	79	33
RRH-1003	100	68	76	135.2	87	1027	661	255	212	127	78	61
RRH-1006	100	68	153	135.2	87	2068	1331	343	213	127	78	79
RRH-10010	100	68	253	135.2	87	3420	2201	443	213	127	78	106
RRH-1508	150	75	200	205	106.8	4100	2136	349	247	150	78	111

Optional Attachment

The MDW square drive hydraulic torque wrench range spans 112 to 72,000 N·m in 11 standard models, with bolt capacity from M14 to M125. A single tool family covers light flange work through heavy structural bolting, so your crew standardizes on one platform with common pumps, hoses and high-strength sockets instead of mixing tools from different suppliers.