Hydraulic Torque Wrench type DRS
 
Hydraulic Torque Wrench type DRS

Universal nut tool
Biggest reaction arm radius in the market
600 Nm to 80.000 Nm

Hydraulic Torque Wrench type DRS

Hydraulic torque wrench type DRS

Universal nut tool

  • Varius inserts and sockets are available

Biggest reaction arm the market

  • reaction arm (asymetrical shape) can be positioned in both directions on the tool

Power classes up to 80,000 Nm

  • Single-hose system
 

Features, functions and technical data

Features and functions
Technical data
Closed steel housing 
Splined output 
Reaction arm 
Splined housing 
Hydraulic swivel connection 
Closed steel housing
Closed steel housing

Lightweight, sturdy and compact: the housing is designed with a small head radius and a 3-level splined connection for the reaction arm. The hydraulic coupler is positioned at the end of the torque wrench. Because of this the DRS can be used in limited radial spaces.

Splined output
Splined output

Expand application options with different inserts and sockets: existing sockets can be adapted with square drive insert type DRS-VE, additional inserts include socket type DRS-KSE and hex drive type DRS-SE. Special inserts and sockets can be designed due to custmers demands. Find an overview about the sockets and adapters here

Reaction arm
Reaction arm

Lightweight with large reaction area: the asymmetric reaction arm can be flipped in both directions, positioned along three levels of the splined housing, and rotated in 360°. Quick and easy positioning of the reaction arm with the simple push-button lock, no tools required. The reaction arm is capped with an extra-strong reaction plate which can easily be replaced if worn.

Splined housing
Splined housing

Quickly adapt to widest range of reaction possibilities: the spline allows for 360° positioning of the reaction arm along three levels of the housing. The built-in lock of the reaction arm allows for quick repositioning, no tools required.

Hydraulic swivel connection
Hydraulic swivel connection

With two swivel points at the wrench: independent rotation at each joint allows for maximum flexibility when positioning the tool and hose. With the connection positioned at the end of the tool the wrench fits into tighter spaces. The internal hydraulic cylinder is equipped with an automatic piston return for faster operation.

 
 
Closed steel housing
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
1
Splined output
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
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Reaction arm
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
3
Splined housing
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
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Hydraulic swivel connection
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
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Hydraulic torqhe wrench type DRS: technical data and dimensions

Dimensions and indexes of the hydraulic torque wrench type DRS
ITH-Type Max. Torque L B R H Weight Order No.


[Nm]

["]

["]

["]

["]

[kg]


DRS 6

600

3,75

1,18

0,64

1,61

1,3

51.10000

DRS 12

1250

4,88

1,49

0,84

2,24

1,7

51.10001

DRS 22

2200

6,33

1,77

0,98

2,67

2,3

51.10004

DRS 50

5000

7,08

2,12

1,18

3,54

4,1

51.10006

DRS 83

8300

8,62

2,36

1,57

4,64

6,8

51.10008

DRS 140

14000

8,81

2,75

1,77

5

9,6

51.10010

DRS 183

18300

9,56

2,95

1,96

5,55

11,7

51.10012

DRS 275

27500

10,86

3,34

2,16

6,25

16,4

51.10014

DRS 363

36300

12,55

3,54

2,36

6,90

22,3

51.10015

DRS 440

44000

12,28

4,09

2,55

7,28

28,8

51.10016

DRS 660

66000

14,37

5,43

2,95

8,26

41,3

51.10018

DRS 800

80000

19,48

4,88

3,22

9,84

65

51.10020

Technical enhancements or changes reserved. Contact us for individual disigns or further information.

 
 

Application examples

Application examples of the hydraulic torque wrench nut type
DRS in tight spaces with torque-angle sensor 
DRS on a pump head 
DRS on a independent wheel suspension 
DRS for cranes 
DRS at a reciprocating compressor 
DRS on a flange connection 
DRS in the oil and gas industry 
DRS in tight spaces with torque-angle sensor
DRS in tight spaces with torque-angle sensor

For applications with tight spaces ITH has supplied numerous customer specific solutions: at this rail car connection ITH manufactured a cusomized mounting device for the DRS torque wrench. The reaction arm was also customized to fit the circumference of the reaction point. Additionally this DRS is equipped with a torque-angle senor upon the splined output for offer torque-angle controlled tightening.

DRS on a pump head
DRS on a pump head

This Hydraulic Torque Wrench DRS 22 uses the opposing nut M 36 (1 1/4") as the reaction point to tighten the bolted connection of a pump which fills air bags. Using the built-in lock the reaction arm is easily secured on the splined housing, no tool required.

DRS on a independent wheel suspension
DRS on a independent wheel suspension

Flexible use on varying supporting conditions: These allen bolts M20 (3/4", bolt quality 10.9) of an independent wheel suspension of a transport car in a harbour are tightened with 1,400 Nm. Here the hydraulic hoseline is equipped with a safety spring (option).

DRS for cranes
DRS for cranes

The asymmetrical reaction arm can be flipped in either direction, as shown in the reverse direction on this DRS 50 used for the tower joint connection of a crane. This bolted connection M36, SW 55 (1 3/8", A/F 55) is tightened with 3,500 Nm.

DRS at a reciprocating compressor
DRS at a reciprocating compressor

At flange connections like this one of a reciprocating compressor of a high pressure pump the DRS 50 here reacts against an adjacent nut. The flange connections can be torqued simultaneously to evenly tighten the flange. This is done by running multiple wrenches from one hydraulic pump.

DRS on a flange connection
DRS on a flange connection

Torquing the bolts simultaneously: With the ITH Multi-torque you can use several ITH torque wrenches with one pump at the same time as part of a hydraulic system. The 950 bar working pressure is evenly distributed among the wrenches and all the bolts are all torqued to the same value. Evenly tightening a flange using ITH Multi-torque results in a better connection and minimizes the risk of leaks.

DRS in the oil and gas industry
DRS in the oil and gas industry

The ITH Multi-torque method is being used to minimize the risk of leaks, like here on M33 bolts (1 1/4", A/F 50). This method can be used with all flange types including ANSI.

 
 
DRS in tight spaces with torque-angle sensor
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
1
DRS on a pump head
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
2
DRS on a independent wheel suspension
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
3
DRS for cranes
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
4
DRS at a reciprocating compressor
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
5
DRS on a flange connection
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
6
DRS in the oil and gas industry
Das ITH-Lieferprogramm umfasst sämtliche Werkzeuge. Ziehende und drehende Werk- zeuge, Mutternsprenger, Handwerkzeuge, Drehwinkel-Tools und vieles mehr...
7
 
 

Technical roduct description of the hydraulic torque wrench type DRS

 
 

All ITH torque wrenches function according to the torque method, optionally to the torque angle method.

The compact hydraulic torque wrench type DRS is used in radially limited spaces and applications with varying reaction points (e.g. cast housing, cranes, etc...)

Features and layout
The slim housing with 360°, three level splined connection for the reaction arm allows it to be positioned axially and radially to reach the optimal reaction point. This flexibility offers the biggest reaction point in the market. The fine-tooth socket of the patented ratchet system guarantees a steady transfer of torque. The internal single-acting hydraulic cylinder has an automatic piston return to increase operating speed.

Existing sockets and nuts can be used
The splined output works with inserts including square drive type DRS-VE, hex socket type DRS-KSE, and hex drive type DRS-SE. Adapt to existing sockets and nuts with square drive inserts type DRS-VE. Find an overview about all insterts for the DRS here.

Maintenance-friendly modular design and TWIN-swivel connection
The modular design (hydraulic cylinder, ratchet system, and housing) is easy to service with fast replacement of worn parts. The TWIN-swivel connection offers a full range of motion for positioning the the tool and hydraulic hose. This is ideal for work in tight spaces.

Compatibility & customized designs

  • Hydraulic torque wrenches type DKS can be used with all ITH hydraulic pumps for toprque wrenches (single-hose or dual-hose systems).
  • ITH provides any custom reaction arms or inserts per customer needs.

Get in contact with us for a free technical consultation or in case of questions. We would be glad to help you on your bolting application.

 
 

Contact and technical consultation in bolting technology

Contact ITH for a free consultation regarding bolting tools, fasteners or service in bolting technology

All information at a glance

Order your product brochure free of charge: As a digital version or printed brochure.

Objective technical advice

Being a whole system supplier we are not determined to one specific bolting method - Therefore we advise you objectively and offer the best technical and cost-effective solution.

Contact us for a free consultation

Contact us on any questions regarding your bolt connection or for any technical questions. We advise you free of charge and offer a free on-site inspection.

 

Hydraulic Torque Wrench type DRS: Related bolting equipment