Spring Return Bolt Tensioner

HSR Spring Return Bolt Tensioner

The HSR Series hydraulic bolt tensioners feature a high-adaptability design with a compact structure and user-friendly operation. Its innovative interchangeable bridge allows for quick-change setup, significantly improving workflow efficiency. WREN has pushed the boundaries of technology to ensure our products for sectors like petrochemicals, energy, metallurgy, and defense meet or exceed the performance standards of premium imported brands. We pride ourselves on offering customization tailored to your unique working conditions. Contact a WREN engineer today to discuss your specific project needs

Using unique patented seals to ensure the service life under ultra-high-pressure of 1500 bar

Internally installed with auto return function to prevent pollution and sand, reduce the equipment failure rate

Easy operation with anti - skid function, Quick disassembling and assembling function

Equipped with over-stroke indicators and protection mechanisms to ensure safe operation

Technical Parameters

Model	Bolt size		Maximum load	Force-Bearing Area	Maximum stroke	Cylinder reset	Maximum working pressure	Weight	A	B	C	D
Model	Bolt size		kN	mm²	mm	Cylinder reset	bar	kg	mm	mm	mm	mm
HSR 0	M20	3/4"	160	1067	10	No autoresponders	1500	≈2.5	66.8	92.5	63	113.5
HSR 0	M22	7/8"	160	1067	10	No autoresponders	1500	≈2.5	66.8	92.5	63	113.5
HSR 1	M24	1"	280	1867	10	Autoresponders	1500	≈3.7	85	116.5	68	141.5
	M27									116.5	68	141.5
		1.1/8"								119.5	76	144.5
HSR 2	M24	1"	450	3003	10	Autoresponders	1500	≈5.5	103	116.5	75	141.5
	M27									116.5	75	141.5
	M30	1.1/8"								119.5	80	144.5
	M33	1.1/4"								122.5	84	147.5
	M36	1.3/8"								125.5	88.5	150.5
HSR 3	M33	1.1/4"	660	4400	10	Autoresponders	1500	≈7.5	118	122.5	92	149.5
	M36	1.3/8"								125.5	96	152.5
	M39	1.1/2"								129	105	156
	M42	1.5/8"								132	104.5	159
HSR 4	M39	1.1/2"	1000	6669	10	Autoresponders	1500	≈11.5	140.5	131.5	112	163.5
	M42	1.5/8"								134.5	114	166.5
	M45	1.3/4"								138	126	170
	M48	1.7/8"								141	123	173
		2"								144	128	176
HSR 5	M52	2"	1500	10002	10	Autoresponders	1500	≈18.5	175.5	148	134	187
	M56	2.1/4"								154.5	148	193.5
	M60									154.5	148	193.5
	M64	2.1/2"								161	153	200
	M68									161	153	200
	M70									161	153	200
		2.3/4"								167	165	206
HSR 6	M72	2.3/4"	2500	16670	10	Autoresponders	1500	≈33	219	167	172	216
	M76	3"								174	182	223
	M80									174	182	223
	M85	3.1/4"								180	190	229
	M90	3.1/2"								186	205	235
HSR 7	M90	3.1/2"	3200	21336	10	Autoresponders	1500	≈47	252	186	230	241
	M95									186	230	241
	M100	3.3/4"								192	235	247
		4"								199	242	254
HSR 8	M105	4"	4100	27336	10	Autoresponders	1500	≈63.5	283	199	255	264
	M110									199	255	264
	M115	4.1/4"								205	260	270
		4.1/2"								212	270	277
HSR 9	M115		4857	32380	10	Autoresponders	1500	≈74	318	205	260	270
HSR 9	M125		4857	32380	10	Autoresponders	1500	≈74	318	225	272	290
HSR 10	M130		7068	47121	10	Autoresponders	1500	≈130	375	250	312	335
HSR 10	M145		7068	47121	10	Autoresponders	1500	≈130	375	250	312	335

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