Wall-Mounted 6th or 7th Robot Axis for Machining Centers

A significant challenge in automating CNC cells is maximizing the utilization of capital equipment. Often, a high-performance industrial robot is dedicated to a single CNC machine for loading and unloading, leaving the robot idle while the machine runs its cycle. The ideal solution is to utilize one robot for two or more CNC machining loading/unloading tasks, but this is often impossible due to the robot's limited reach.  

This solution uses our heavy-duty compact module CKR (with belt drive) as a robust, wall-mounted transfer axis for a standard industrial robot. Engineered with two integrated ball rail systems, the CKR 280 is exceptionally rigid, effectively acting as a "7th axis" for the robot.

It is designed to handle the significant dynamic loads of a moving robot, allowing a Robotic System Integrator to mount their preferred 4- to 6-axis robot directly to the CKR's carriage. The transfer axis is powered and controlled by our versatile automation platform ctrlx AUTOMATION, ensuring precise and reliable positioning.

Key Features & Benefits 

• Extended Robot Work Envelope 
  A single robot on a linear axes can service multiple machines across a wide area, replacing several fixed robots and drastically increasing the utilization of your automation. 

• Unlocks Floor Space 
  Moving the robot and transfer system to the wall keeps the floor clear for operator access, equipment, and simplified cleanup. 

• Heavy-Duty Performance & Specifications 
  The CKR 280 is built to move heavy loads at high speeds without sacrificing stability. Its robust design provides a firm foundation for demanding applications, backed by impressive specifications: 

  • Top Speed: >2 m/s (with 250 kg payload) 

  • Max. Stroke: 4,990 mm 

  • Max. Belt Force: 4,800 N 

  • Dynamic Load Capacity: >200,000 N 

  • Permissible Moment Load: >5,000 Nm 

• Freedom to Integrate Your Preferred Robot 
  Our linear axis CKR provides the robust transport foundation, giving Robotic System Integrators the freedom to select their preferred robot. Integration of the transfer axis into the larger cell control system is simplified by our automation platform ctrlX AUTOMATION, which is renowned for its open communication standards and easy commissioning. 

• Reliable Positioning 
  Equipped with absolute multi-turn encoders, Rexroth MS2N Servomotors always know the compact modules CKRs precise position, eliminating re-homing after a power-down and enabling a safe, immediate startup. 

• Simplified Sizing with LinSelect 
  Our LinSelect software makes engineering your solution straightforward. This intuitive tool helps you confidently select the correct linear module and drive combination for your specific payload and performance requirements, simplifying the design process and reducing engineering time. 

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Build your Application with Bosch Rexroth Products

Integrating reliable components is crucial for an optimal machine tending process. Rexroth’s components, including linear axes (Compact Modules), linear guides, screw drives, and ctrlX controllers, work together seamlessly. This combination extends a robot's work envelope, enabling a single robot to service multiple machines, which drastically increases equipment utilization and frees up valuable floor space.

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