New generation QST-M offset nutrunner, modular and fast for hard-to-reach areas.
The QST-M-COT Modular Offset Nutrunner is Atlas Copco’s ultimate solution for accessibility challenges in automated assembly lines. Combining an offset tightening head with the new modular technology of the QST-M series allows access to bolts located in tight spaces or close to sidewalls, without compromising on speed or precision.
The QST-M-COT model offers all the benefits of the new generation: a 40% faster motor for reduced cycle times, an advanced torque transducer for +/- 2.5% accuracy, and a smart modular structure that simplifies maintenance and extends tool life (Sustainability through design). The offset configuration enables the design of Multi-Spindle systems with tight Center-to-Center spacing that is impossible with straight tools. The nutrunner features configurable 360-degree LED indicators for clear visual feedback and fully supports existing Power Focus 6000 and PowerMACS 4000 controllers. The wide torque range (2-350 Nm) provides maximum operational flexibility and suitability for a broad variety of applications.
Q: When should I choose the MCOT model?
A: When there is a physical space constraint above the bolt or when bolts are positioned very close to each other (short C-C distance), the offset model is the ideal solution.
Q: Does modularity affect tool durability?
A: On the contrary, the modular structure is designed for enhanced industrial durability and allows for long service intervals of one million cycles.
Our experts will match the new modular offset nutrunner to your needs:
| Model | DRIVE | Torque Range | Speed (rpm) | Weight (kg) | Length (mm) | Ordering No. | |
|---|---|---|---|---|---|---|---|
| Nm | ft lb | ||||||
| QST42-20MCOT-T50-L134-H10 | – | 2.0-20.0 | 1.5-14.8 | 2500 | 4.6 | – | 8435622020 |
| QST42-20MCOTT-T50-L134-H10 | – | 2.0-20.0 | 1.5-14.8 | 2500 | 5.5 | – | 8435622060 |
| QST42-50MCOT-T50-L134-H13 | – | 5.0-50.0 | 3.7-36.9 | 880 | 4.8 | – | 8435623020 |
| QST42-50MCOTT-T50-L134-H13 | – | 5.0-50.0 | 3.7-36.9 | 880 | 5.5 | – | 8435623060 |
| QST50-90MCOT-T50-L137-H13 | – | 9.0-90.0 | 6.6-66.4 | 815 | 0 | – | 8435624020 |
| QST50-90MCOTT-T50-L137-H13 | – | 9.0-90.0 | 6.6-66.4 | 815 | 10 | – | 8435624060 |
| QST50-150MCOT-T50-L137-H13 | – | 15.0-150.0 | 11.1-110.6 | 475 | 8.1 | – | 8435625020 |
| QST50-150MCOTT-T50-L137-H13 | – | 15.0-150.0 | 11.1-110.6 | 475 | 9.4 | – | 8435625060 |
| QST62-150MCOT-T50-L152-H13 | – | 15.0-150.0 | 11.1-110.6 | 635 | 1 | – | 8435626020 |
| QST62-150MCOTT-T50-L152-H13 | – | 15.0-150.0 | 11.1-110.6 | 635 | 16 | – | 8435626060 |
| QST62-230MCOT-T50-L152-H19 | – | 23.0-230.0 | 17.0-169.6 | 465 | 13.9 | – | 8435626520 |
| QST62-230MCOTT-T50-L152-H19 | – | 23.0-230.0 | 17.0-169.6 | 465 | 16 | – | 8435626560 |
| QST62-350MCOT-T50-L152-H19 | – | 35.0-350.0 | 25.8-258.1 | 310 | 1 | – | 8435627020 |
| QST62-350MCOTT-T50-L152-H19 | – | 35.0-350.0 | 25.8-258.1 | 310 | 15.8 | – | 8435627060 |
HADI Engineering & Automation
HADI’s engineering and automation team helps integrate the product into a workstation, robotic cell or production line—from specification and mechanical design to integration, commissioning and implementation.
The HADI Technologies team will help you select the right configuration, verify application requirements and provide technical information about QST-M-COT Modular Offset Nutrunner 2-350 Nm.
The right solution starts with a clear brief
The HADI product development and engineering team can adapt a tool, product or system to your application.