Tensor ETV STB33-30-B10-B: Cordless right angle nutrunner with ball retainer - transducerized type - Atlas Copco Liberia

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Tensor ETV STB33-30-B10-B: Cordless right angle nutrunner with ball retainer - transducerized type

8433 3021 76


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A fast, light, transducerized cordless tool, the Tensor STB angle nutrunner is ideal for safety critical applications in cramped and large assembly areas where it offers improved accessibility and mobility. No other battery powered tool can match Tensor STB’s unique fastening performance and advanced process control. Atlas Copco Industrial Radio Communication (IRC) enables the Tensor STB to be partnered with a Power Focus controller for accurate torque monitoring and full joint traceability. At a typical workstation, one Tensor STB tool can be used for several applications within the same torque range.

Features & benefits

  • High performance brushless motor with wide torque range gives shorter cycle times.
  • Ultra-compact, one piece angle head for reduced weight.
  • Spiral angle gears give more durable angle heads.
  • Torque transducer ensures accurate tightenings and traceability.
  • Excellent ergonomics with high power-to-weight ratio and ErgoGrip.
  • Four sets of signal lights give excellent feedback to the operator, avoiding errors.
  • Configurable buzzer for tailor-made operator feedback
  • IRC Industrial Radio Communication to easily communicate with the controller.
  • Configurable button on reverse ring helps you to interact with the tool.
  • Internal bus connection for intelligent accessories such as a barcode reader and torque selector reducing time to read identifiers or switch between programs.
  • Li-Ion batteries give more cycles between battery change.

Technical data

Technical Specifications
Torque range6 - 30 Nm
Model typeAngle
Shut-off systemTransducer
Free speed 9.6 V380 r/min
Weight1.5 kg
Length470.8 mm
CS distance15.5 mm
Weight incl. battery (kg lb)2.15 kg
Height41.8 mm
Sound standardISO15744
Sound pressure<70 dB(A)
Vibration standardISO28927-2
Vibration value<2.5 m/s²

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.

Download your tool test certificate for MicroTorque screwdrivers.

A test certificate tells you that the tool has been tested and passed our requirements in the factory. This includes functional testing as well as accuracy testing.

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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

Atlas Copco ToolScan

Tool service
Atlas Copco ToolScan™ report informs you of the status of your air tools and air supply at each workstation. The service is carried out by a highly experienced certified technician and covers the following areas:
  • AirScan of the air supply at each workstation.
  • Status and performance check of the tools
  • Other services can be added.
A report informing you of the status of your air supply and tools, including recommendations for improvements. You can then, together with your team, decide the next step without a binding agreement.
Read more about Atlas Copco ToolScan™

Energy Efficiency Audit

A huge amount of energy is wasted due to leaks in compressed air systems. Capacity losses of up to 20% are common in many installations. During an Energy Efficiency Audit Atlas Copco checks the static and dynamic pressure for your air tools on the line. The pressure drop is measured and documented and a visual inspection of the air installation is performed. Based on the information acquired, using the Energy Efficiency Calculator, Atlas Copco recommends the correct installation in terms of air line accessories and various other aspects.

Read more about Energy efficiency Audit

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

See the product in action


  • Suspension yoke - Attached on rear part of handle

    Suspension yoke

    Attached on rear part of handle

    4220 3037 00

  • Nut - For complete kit order front part + holder


    For complete kit order front part + holder

    4220 0841 01

  • Telescopic front part - Travel 25mm, For complete kit order holder + cap nut

    Telescopic front part

    Travel 25mm, For complete kit order holder + cap nut

    4220 1145 95

  • Covers for socket - M30x0,75Left. L = 36 mm

    Covers for socket

    M30x0,75Left. L = 36 mm. For standard sockets

    4220 3154 04

  • Supported extension - L=142 mm

    Supported extension

    L=142 mm

    4220 3869 90

  • Front button

    Front button

    Mounted on front part of motor

    4220 3184 90

  • Dual trigger - Mounted on front part of motor with lever on top for dual trigger function

    Lever trigger top

    4220 3186 90

  • Adjustable headlights - Mounted on front part of motor

    Adjustable headlights

    Mounted on front part of motor

    4220 3292 94

  • Dual trigger - Mounted on front part of motor with lever 135° from top for dual trigger function

    Dual trigger

    Mounted on front part of motor with lever 135° from top for dual trigger function

    4220 3311 90

  • I/O device module

    I/O device module

    8433 0617 12

  • Extended lever

    Extended lever

    4220 3511 85

  • Tool extension - L=150 mm

    Tool extension

    L = 150 mm

    4220 2903 96

  • Holder - For complete kit order tel. front part + cap nut


    For complete kit order tel. front part + cap nut

    4220 1673 91

  • Reaction plate

    Reaction plate

    Reaction plate with reaction bar included

    4220 1677 91

  • Suspension yoke

    Suspension yoke

    Swivelling, attached on motor

    4220 2657 90

  • Suspension yoke - Fixed, attached on motor front nut

    Suspension yoke

    Fixed, attached on motor front nut

    4220 2843 92

  • Scanner


    8433 0615 10

  • Lock-off lever

    Lock-off lever

    4220 3511 83

  • Protection

    Selector protection

    4220 2917 06

  • Parameter set selector

    Parameter set selector

    8433 0616 05

  • Scanner protection

    Scanner protection

    4220 2761 10

Safety Information

To operate tools safely, always read and follow all Safety Information and Product Instructions. All locally legislated safety rules regarding installation, operation and maintenance must be respected at all times.

Safety Information
Product Instructions

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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