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Media / Application stories / Toyota chooses Atlas Copco Tensor ST Nutrunner for Lexus manufacturing

Toyota chooses Atlas Copco Tensor ST Nutrunner for Lexus manufacturing


Toyota Motor Corporation (TMC) builds its Lexus models at Toyota Motor Kyushu Inc in southwest Japan, and at the Tahara plant in central Japan. Both plants are equipped with state-of-the-art assembly technology from Atlas Copco.

Advanced quality assurance for safety critical applications

Atlas Copco Tensor ST Nutrunner

Atlas Copco Tensor ST Electric Angle Nutrunner

To achieve better quality products, TMC chose Atlas Copco’s latest Tensor ST line of electric tools for safety critical applications.

Equipped with built-in torque transducers, the Tensor ST is an operator-friendly work environment tool – noise levels are as low as 68 decibels. In the Tahara plant, Tensor ST tools are partnered with Power Focus controllers. These are linked to TMC’s proprietary error-proofing system via a network.

A second Ethernet-based network is dedicated to the Tensor tools. This enables TMC to collect data into the tooling server unit which controls the Atlas Copco data collection and process improvement software modules, including Atlas Copco ToolsNet.

Combined, the systems contribute to product quality by preventing defective problems from leaving the production line.
Problems are indentified at an early stage of production, allowing corrective action to be taken before costs arise.
For verification of tools and processes, TMC has chosen Atlas Copco’s Quality Assurance products.

Tightening quality and accuracy

Installing the tools was just the beginning. The Atlas Copco team worked closely with the TMC programming tightening strategies and process validation to achieve the highest performance in terms of tightening quality and accuracy. They also helped to identify common joint problems and define tightening strategies to eliminate the problems before the production started.

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Atlas Copco is an industrial group with world-leading positions in compressors, construction and mining equipment, power tools and assembly systems. The Group delivers sustainable solutions for increased customer productivity through innovative products and services. Founded 1873, the company is based in Stockholm, Sweden, and has a global reach spanning more than 170 countries. In 2009, Atlas Copco had about 30 000 employees and revenues of BSEK 64 (BEUR 6.0). Learn more at

Atlas Copco’s Industrial Technique business area
develops, manufactures and markets industrial power tools, assembly systems, aftermarket products, software and service. It innovates for superior productivity for applications in the automotive and aerospace industry, general industrial manufacturing and maintenance, and vehicle service worldwide. Principal product development and main manufacturing units are in Sweden, Great Britain, France. More information is available on