QST50-150CTT -T50 -L137 -H12.7: Electric fixtured nutrunner with dual torque transducers - Atlas Copco Liberia

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QST50-150CTT -T50 -L137 -H12.7: Electric fixtured nutrunner with dual torque transducers

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Fixtured nutrunners from Atlas Copco are spelled QST or ETX. Both are designed for durability, reliability and high performance. 1 million duty cycles with accuracy of +/- 2.5%, make QST one of the most reliable tools on the market. QST nutrunners are compact and easy to integrate in fixtures or robots; both pilot mount and sandwich mount are possible.

QST nutrunners are pre-calibrated and tested before delivery. A built-in memory chip in the QST stores calibration values and general tool service data. This gives the advantage for QST that calibration value is independent of cable length and cable lengths up to 60m are allowed.

With the wide range of socket holder lengths, from 0-200 mm, the QST can handle most screw lengths and still ensure positive contact between socket and bolt during the tightening process. The socket holder is spring loaded and allows travel as the bolt moves away from the spindle body during tightening. The QST has a standard travel length of 50 mm. 76 and 100 mm can be provided upon request.

Features & benefits

  • High reliability
  • Calibration value stored in spindle, calibration value independent of cable length
  • Dual torque transducers
  • Hot Swap, replace cable or spindle without turning off the power
  • Robust connector
  • 51 or 37 mm cc-distance
  • 50 mm travel as standard

Technical data

Technical Specifications
Socket holder size1/2 inch
Torque range30 - 150 Nm
Speed380 r/min
Min C-C51
Weight5.8 kg
Gear ratio31.24
A137 mm
B23 mm
C464 mm
D15 mm
Travel50 mm
Sound pressure<70 dB(A)
Sound standardISO15744

Additional products for a complete tool system

Suitable cables - t0005
Length (m)  Ordering No.  
2 Meter4220 3799 02
3 Meter4220 3799 03
5 Meter4220 3799 05
7 Meter 4220 3799 07
10 Meter4220 3799 10
15 Meter4220 3799 15
20 Meter4220 3799 20
25 Meter4220 3799 25
30 Meter4220 3799 30
35 Meter4220 3799 35
40 Meter4220 3799 40
Power macs 4000 controllers and power supply - t0028
Power Supply Ordering No.
Main switch box (Max 6 channels) 
Distribution box (Max 6 channels) + Power cable 1800 mm 
General box 
Suitable Software - t0054
Tools Talk Power MACS World Release 07 DesignationOrdering No.
1 userEnglish
5 userEnglish
10 userEnglish
Plant licenseEnglish
1 userGerman
5 userGerman
10 userGerman
Plant licenseGerman
1 userFrench
5 userFrench
10 userFrench
Plant licenseFrench
Tools Talk Power MACS World Release 10DesignationOrdering No.
1 userEnglish
5 userEnglish
10 userEnglish
Plant licenseEnglish
1 userGerman
5 userGerman
10 userGerman
Plant licenseGerman
1 userFrench
5 userFrench
10 userFrench
Plant licenseFrench
Tools Talk Power MACS World Release 10 GaugingDesignationOrdering No.
1 userEnglish
5 userEnglish
10 userEnglish
Plant licenseEnglish
1 userGerman
5 userGerman
10 userGerman
Plant licenseGerman
1 userFrench
5 userFrench
10 userFrench
Plant licenseFrench

Spare parts lists, Dimensional drawings, Exploded Views, Service Instructions, etc.

Spare parts, Dimensional Drawings, Service Instructions, Industrial tools.
Below you find links to Atlas Copco ServAid application, where you find spare parts list and product instructions and a link to the Dimensional Drawing archive where you can find 2D and 3D drawings in PDF, DXF and IGS format.

Atlas Copco Service

The Leader in tool maintenance for industry Atlas Copco service is a proven cost-saver in your production. The savings you can expect from running a service program depend on the type of production you have in your plant. Many factors are taken into consideration, including: Line assembly, work at fixed stations, frequency of tool use, tool types, applications, and work environment.

Repair Service

With today’s high demands on minimizing downtime for our customers, we focus on specialized workshops that can handle quick repairs and complete overhauls in the most cost-efficient way. To do that we keep a large inventory of spare parts in stock, and we have upgraded with factory fixtures and test equipment to increase our efficiency. With all this, plus certified mechanics dedicated to specific tool models, we’ve minimized lead times and improved the quality of each repair. After service all tools are rigorously tested to Atlas Copco specifications.
Read more about Repair Service

Calibration Service

Calibration in Service Lab
With our network of calibration laboratories we can offer a complete package of calibration services to help you control quality for all assembly tools and measurement equipment in your production.

Read more about Calibration services.

Preventive Maintenance

Like other machines, Atlas Copco industrial power tools need regular maintenance in order to fulfill their full potential in terms of performance and reliability. Different agreements are available, tailored to your needs. We offer maintenance both on-site or off-site, or a combination.

Read more about Preventive Maintenance

Full Coverage Service

Our Full Coverage option keeps your power tools in top operating condition and gives you a fixed budget for all tool maintenance. Other services can be added. To develop the optimum service program for your specific manufacturing operation, take advantage of our unique ToolScan RCM process.

Full Coverage includes:
  • Repair, including parts
  • Calibration
  • Preventive maintenance program
  • On-site/off-site options
  • Other services can be added
Read more about Full Coverage service

Outsourcing solutions

We have extensive experience of outsourcing solutions and currently have more than 75 on-site workshops. These are examples of the areas we cover:
  • Preventive maintenance, repair and calibration of all
    brands and types of tools.
  • Installation and start-up support.
  • Service management system, including developing Key Performance Indicators.
  • Line and process support.
  • Back-up tool/equipment and spare parts management.
  • Other customer requests.
Read more about Outsourcing Solutions

Service packages for new equipment

Investing in new tools to upgrade an existing production line? Or perhaps you’re designing, installing and commissioning an entirely new line. In either case Atlas Copco’s specialists are there every step of the way to help you focus on quality and efficiency. With your production up and running our service programs will help keep you online with minimum interruptions.

Product views

See the product in action

Atlas Copco USA - Eco Design
Eco Design and environmental aspects of product development is nothing new to us. Atlas Copco has a history of developing modular tools with a deep respect for materials and natural resources used in the products. We always strive to maximize the functionality of the product and at the same time minimize the energy consumption to make sure the environmental impact is as low as possible. By developing accurate tools we make sure the customer never has to waste time or energy to re-do an operation. For battery tools we also have the option to connect multiple tools to one controller and thereby decrease the standby energy consumption considerably.

Eco Design is all about minimizing a product's environmental impact during its entire life-cycle, including extraction of raw materials, manufacturing, customer usage and recycling while maximizing the productivity.

Our approach to Eco Design

Eco Design
Within Industrial Technique we approach Eco Design from six different areas. These form the core of the Eco Design review performed in each product development project. This procedure helps define Eco Design targets early in the project.
    We avoid hazardous substances and materials listed on the Atlas Copco Restricted & Prohibited list.
    We use materials and structural features to minimize the product’s weight and invest in strong, durable materials to protect the product.
    We avoid mixing materials since blends inhibit recycling and consider fastening methods to facilitate disassembly.
    We consider how the final product will be used in order to minimize energy and resource consumption in the use phase, in production and during transportation.
    We design with recycling in mind. We promote repair and upgrading, especially for long lasting and system-dependent products. To increase the customer’s awareness regarding the importance of recycling, we are now including Recycling Instructions in the Product Information (PI).
    We prepare for upgrading, maintenance and recycling, through labelling, modularization and information in the product information.
This is how we do Sustainable Productivity in practice!


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