Spring Return Bolt Tensioner

Spring Return Bolt Tensioner

Bolt Tensioner | Spring Return Tensioner | Topside Tensioner

Bolt Coverage from 3/4″ to 4-1/4″ | M20 – M115 with just 9 tools

Spring Return Bolt Tensioner, features unique automatic quick release bridge adaptation, piston stroke indication and piston over stroke prevention.

The SRT is the most popular Spring Return Bolt Tensioner in the industry due to it’s ability to improve productivity whilst Increasing safety to the operator.

 

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Spring Return Bolt Tensioner

SPX SRT Spring Return Tensioner
  • Spring Return Bolt Tensioner, design dramatically increases productivity and safety on the job site when compared to older technology manual return tensioners.
  • Piston overstroke prevention
  • Piston stroke indication
  • Compatible with MRT Tensioner range
  • Unique quick release bridge adaptation
  •  Piston/cylinder misalignment compensation
  •  Bolt coverage from M20 to M115 mm (3/4″ to 4-1/4″) with just 9 tools
  • Designed to fit BS1560/ANSI B16.5/API flanges
  • Fully enclosed load cell design eliminates entry of debris into piston retraction mechanism
  • Piston over-stroke eliminator to prevent over stroking and blowing a seal
  • Twin hydraulic couplings for multiple tool connection
  • Requires stud to protrude above nut by 1 x bolt diameter
  • Application specific tooling available. Contact factory for details.
  • 10 mm piston stroke Max tool pressure: 1,500 bar (21,750 psi)#
  • Bolt protrusion above nut: 1 x bolt diameter (minimum)

Safety

The Spring Return Bolt Tensioner design dramatically increases productivity and safety on the job site when compared to older technology manual return tensioners. Furthermore you will find a fully enclosed load cell design which eliminates entry of debris into piston retraction mechanism.

Contact for more Information

Contact us today if you have any question the team at TJI Solutions will be happy to help.

Newcastle Upon Tyne | North East England | Aberdeen | Great Yarmouth

Features

The Spring Return design dramatically increases productivity and safety on the job site when compared to older technology manual return tensioners.

  • Piston overstroke prevention
  • Piston stroke indication
  • Compatible with MRT Tensioner range
  • Unique quick release bridge adaptation
  • Piston/cylinder misalignment compensation
  • Bolt coverage from 3/4″ to 4″ (20 – 115 mm) with just 8 tools
  • Designed to fit BS1560/ANSI B16.5/API flanges
  • Fully enclosed load cell design eliminates entry of debris into piston retraction mechanism
  • Piston over-stroke eliminator to prevent over stroking and blowing a seal
  • Twin hydraulic couplings for multiple tool connections
  • Requires stud to protrude above nut by 1 x bolt diameter
  • Application specific tooling available. Contact factory for details.
  • 10 mm piston stroke

Max tool pressure: 21,750 psi (1,500 bar)
Bolt protrusion above nut: 1 x bolt diameter (minimum)

Specifications

(Tool Reference)
Load Cell
Order No.
Stud DiameterTool LoadHydraulic Area
ImperialAdapter Kit
Order No.
MetricAdapter Kit
Order No.
(Lbf)(kN)(in2)(mm2)
(SRT0 )
SRTAS000001
3/4″SRTAS000002M20SRTAS00000635,9711601,6541,067
7/8″SRTAS000004M22SRTAS000008
(SRT1)
SRTAS010001
1″SRTAS010003M24SRTAS01000762,9502802,8941,867
M27SRTAS010009
1-1/8″SRTAS010005
(SRT2)
SRTAS020001
1″SRTAS020003M24SRTAS020011101,1694504,6523,001
M27SRTAS020013
1-1/8″SRTAS020005M30SRTAS020014
1-1/4″SRTAS020007M33SRTAS020015
1-3/8″SRTAS020009M36SRTAS020016
(SRT3)
SRTAS030001
1-1/4″SRTAS030003M33SRTAS030011148,3816606,8224,401
1-3/8″SRTAS030005M36SRTAS030012
1-1/2″SRTAS030007M39SRTAS030013
1-5/8″SRTAS030009M42SRTAS030014
(SRT4)
SRTAS040001
1-1/2″SRTAS040004M39SRTAS040014224,820100010,3356,668
1-5/8″SRTAS040006M42SRTAS040015
1-3/4″SRTAS040008M45SRTAS040016
1-7/8″SRTAS040010M48SRTAS040017
2″SRTAS040012
(SRT5)
SRTAS050001
2″SRTAS050004M52SRTAS050012337,230150015,50410,003
2-1/4″SRTAS050006M56SRTAS050013
M60SRTAS050015
2-1/2″SRTAS050008M64SRTAS050016
M68SRTAS050018
M70SRTAS050020
2-3/4″SRTAS050010
(SRT6)
SRTAS060001
2-3/4″SRTAS060004M72SRTAS060014562,050250025,8416,671
3″SRTAS060006M76SRTAS060016
M80SRTAS060018
3-1/4″SRTAS060008M85SRTAS060020
3-1/2″SRTAS060010M90SRTAS060022
(SRT7)
SRTAS070001
3-1/2″SRTAS070004M90SRTAS070010719,424320033,07621,339
M95SRTAS070012
3-3/4″SRTAS070006M100SRTAS070014
4″SRTAS070008
(SRT8)
SRTAS080001
4″SRTAS080004M105SRTAS080010921,762410042,37727,340
M110SRTAS080012
4-1/4″SRTAS080006M115SRTAS080014
4-1/2″SRTAS080008

Weight excludes puller sleeve
Need to order load cell and adapter kit to have complete tensioner
To convert to long tons, divide lbf by 2240. To convert to short tons, divide lbf by 2000.
All bolt diameters ≤ 1″ are UNC and all diameters > 1″ are 8UN. All metric threads are Metric Coarse.

(Tool Reference)
Load Cell
Order No.
Minimum Bolt
Protrusion Above Nut
Aprox. Weight
Imperial BoltsMetric BoltsArea
(in)(mm)(in)(mm)(lb)(kg)
(SRT0 )
SRTAS000001
0.75190.79203.11,4
0.87220.8722
(SRT1)
SRTAS010001
0.98250.942462,7
1.0627
1.1429
(SRT2)
SRTAS020001
0.98250.942494,1
1.0627
1.14291.1830
1.26321.3033
1.38351.4236
(SRT3)
SRTAS030001
1.26321.303311.95,4
1.38351.4236
1.5381.5439
1.61411.6542
(SRT4)
SRTAS040001
1.5381.543918.58,4
1.61411.6542
1.73441.7745
1.89481.8948
2.0151
(SRT5)
SRTAS050001
2.01512.055230.413,8
2.24572.2056
2.3660
2.52642.5264
2.6868
2.7670
2.7670
(SRT6)
SRTAS060001
2.76702.837250.723
2.99762.9976
3.1580
3.27833.5585
3.50893.5490
(SRT7)
SRTAS070001
3.50893.549070.532
3.7495
3.74953.94100
4.02102
(SRT8)
SRTAS080001
4.021024.1310599.245
4.33110
4.251084.53115
4.49114

Dimensions

(Tool Reference)
Load Cell
Order No.
ABCD
Imperial
Bolts
Metric
Bolds
(in)(mm)(in)(mm)(in)(mm)(in)(mm)(in)(mm)
(SRT0)
SRTAS000001
2.6663.7932.5635.41365.6142
3.7932.5635.61425.7144
(SRT1)
SRTAS010001
3.4874.61172.7686.91756.9175
4.61172.7687178
4.71202.8727.1181
(SRT2)
SRTAS020001
4.11034.61173756.91756.9175
4.61173757178
4.71203.1807.11817.2184
4.81233.3847.41887.5190
51263.5897.71957.7196
(SRT3)
SRTAS030001
4.71184.81233.5887.51907.6192
51263.8967.81977.8198
5.11303.89682038204
5.21334.11058.22098.3211
(SRT4)
SRTAS040001
5.5140.55.21324.41128.32118.3212
5.31354.51148.52178.6218
5.51394.61188.82238.9225
5.61424.51149.12309.1231
5.71454.71209.3236
(SRT5)
SRTAS050001
6.9175.55.81484.71209.72469.8248
6.11545.413810.225910.2258
6.31615.413810.3262
6.3161615310.727210.7273
6.3161615311.1283
6.3161615311.3287
6.61676.115611.228411.1283
(SRT6)
SRTAS060001
8.62196.61676.215711.629411.7297
6.91747.218221.130712.1308
6.91747.218212.3312
7.11807.519012.632012.7323
7.31868.120513.133213.1334
(SRT7)
SRTAS070001
9.92527.31867.920013.333913.4341
7.31867.920013.6346
7.61927.920013.935214356
7.81998.321014.3364
(SRT8)
SRTAS080001
11.12827.81998.321014.737414.9378
7.81998.321015.1383
8.12058.822415.238715.5394
8.32129.123215.7400
(Tool Reference)
Load Cell
Order No.
EFGStud
Diameter
Imperial
Bolts
Metric
Bolds
(in)(mm)(in)(mm)(in)(mm)(in)(mm)ImperialMetric
(SRT0 )
SRTAS000001
1.436125250.8249.83/4″M20
1.4361252.153.62517/8″M22
(SRT1)
SRTAS010001
1.5381.1282.358.82.256.51″M24
1.5381.1282.358.7M27
1.6411.2312.768.344.51-1/8″
(SRT2)
SRTAS020001
1.5381.2302.665.22.564.51″M24
1.5381.2302.666M27
1.6411.2302.767.62.767.61-1/8″M30
1.7441.4352.872.32.871.91-1/4″M33
1.9471.5383.1783771-3/8″M36
(SRT3)
SRTAS030001
1.7441.435375.9376.51-1/4″M33
1.9471.5383.281.13.280.81-3/8″M36
2511.7423.383.83.383.61-1/2″M39
2.1541.6413.6913.6911-5/8″M42
(SRT4)
SRTAS040001
2511.7423.691.83.691.61-1/2″M39
2.1541.8453.895.63.895.51-5/8″M42
2.2572523.91003.91001-3/4″M45
2.4602514101.14101.31-7/8″M48
2.5632524.2106.82″
(SRT5)
SRTAS050001
2.5632524.51144.51152″M52
2.8702.3584.8121.34.7119.12-1/4″M56
2.8702.3584.8122M60
3762.5635.3134.35.2132.32-1/2″M64
3762.5635.3135M68
3762.5635.3135.2M70
3.2812.8705.6141.32-3/4″
(SRT6)
SRTAS060001
3.2822.8725.7145.45.8146.52-3/4″M72
3.5893.1806.3159.86.1155.53″M76
3.5893.1806.2158.4M80
3.7953.3846.71696.51653-1/4″M85
41013.5887.21827178.63-1/2″M90
(SRT7)
SRTAS070001
41013.5887.1179.86.9176.13-1/2″M90
41013.5887178.9M95
4.21073.7947.3185.37.3184.73-3/4″M100
4.51144.51147.31864
(SRT8)
SRTAS080001
4.51144.51147.71967.71954″M105
4.51144.51147.8197M110
4.71204.51148.22088.22084-1/4″M115
51274.61178.62184-1/2″

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Additional Dimensional Specifications
Catalog
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