MicroTorque ETF M 100 400B: Fixtured electric motor unit, low torque, DigiTork - Atlas Copco Liberia

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MicroTorque ETF M 100 400B: Fixtured electric motor unit, low torque, DigiTork

8432 0819 20


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Whether you are manufacturing high value consumer goods or sensitive electronics, MicroTorque electric screwdrivers are designed to bring precision, productivity and quality in to your production. Ultra low-torque applications, starting at 0.5 Ncm, don´t need to be demanding. Electric screwdrivers in the MicroTorque range from Atlas Copco are designed to perform consistently and precisely, time after time. The Micro Torque system is flexible, with possibility to program different tightening torque levels and strategies, with torque angle and speed control, to meet even the most challenging applications. The Micro Torque electric screwdriver provides clear operator feedback, common assembly problems like missing screws, floating screws, cross threads and stripped screws are detected and eliminated. Data can be recorded and used for statistical analysis, for full control over the assembly process. All Micro Torque screwdrivers are designed for being used in applications with electronic components, with ESD (electrostatic discharge) certification. ESD certification means a guarantee against damage of electronic components by an uncontrolled electrostatic discharge (ESD) from the tools. In practice it certifies that at no point will the material of the equipment hold an electrostatic potential above 100 V for more than 2 seconds.

Features & benefits

  • System with DigiTork screwdriver and MT Focus 400 A—advanced version with 3 Psets
  • Fixtured screwdriver to be used with torque arm or in automation assembly
  • Possible to program via controller interface, with autoset to set torque and batch size,
    or via PC software interface Tools Talk MT
  • Tightening strategy with torque, angle and speed control for detecting assembly problems. In total 3 different parameter sets “P-sets” can be programmed.
  • The most compact controller available in the market with configurable display providing clear operator feedback.
  • Supports PC/ToolsTalk MT, communication via USB or RS232. Can be integrated in line with configurable 4 inputs /4 output digital signals.
  • The tool ordering number includes a complete system: Controller, screwdriver, tool cable, controller stand, Tools Talk MT, USB communication cable and power supply.

Technical data

Technical Specifications
Shut-off systemCurrent control
Torque range25 - 100 cNm
Speed range700 r/min
Motor voltage24 Volt
Motor voltage type
Motor power20 W
Model typeStraight
Bit drive1/4” HEX
Overall width30 mm
Weight1.2 kg
Length272 mm
Sound pressure<70 dB(A)
Sound standardISO15744

Included accessories with this product

  • Wall bracket

    Wall bracket

    8432 0833 83

  • ToolsTalk MT

    ToolsTalk MT

    400A, 400B, 400D

    8432 0831 30

Additional products for a complete tool system

Suitable software
MicroTorque software modelOrdering no.
Tools Talk MTF/Analysis/Net8432083130

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.

Download certificate

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

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.

See the product in action


  • Tool cable - 2.0 m

    Tool cable

    2.0 m

    8432 0830 36

  • Tool cable - 3.5 m

    Tool cable

    3.5 m

    8432 0831 01

  • Tool adapter set - SH30

    Tool adapter set


    8432 0830 72

  • Handle - Connection: SUB-D26 HD


    Connection: SUB-D26 HD

    8432 0830 53

  • Torque arm

    Torque arm

    Load: 1.4 - 2.4 kg. For more information please see manual for the Torque arm.

    8432 0830 03

  • Balancer fixture

    Balancer fixture

    4216 1015 90

  • Ring screw - M5-20

    Ring screw


    4216 1017 00

  • Holder


    4216 1018 00

  • Screw kit

    Screw kit

    4216 1019 90

  • Power supply - PS 36V 150W

    Power supply

    PS 36V 150W

    8432 0830 94

  • Tool cable - Angle connector

    Tool cable

    Angle connector

    8432 0831 15

  • Tool cable - Angle connector

    Tool cable

    Angle connector

    8432 0831 16

  • Cable clamp

    Cable clamp

    8432 0830 91

  • I/O adapter

    I/O adapter

    4216 2179 80

  • Vacuum adapter

    Vacuum adapter

    8432 0770 43

  • Connector assembly

    15 pin D-sub

    4216 2130 80

  • Cable - RS323



    4216 2174 80

  • Cable


    8432 0830 39

  • Cable


    4222 1238 02

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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