DOBOT CR3A - Collaborative Industrial robot arm with 620mm working radius and 3kg payload

ROBOT ARM OVERVIEW

The DOBOT CR3A is a compact 6-axis collaborative industrial robot arm designed for precise, flexible and easily reconfigurable automation tasks. As the smallest model in the CRA Series, it is particularly well suited to workstations where available space is limited but industrial precision, flexible programming and human–robot collaboration remain important requirements. Its 3 kg maximum payload and 620 mm working radius make it ideal for handling smaller components, assembly processes and machine-tending operations.

Collaborative Operation and Safety

Multiple safety functions support collaborative operation. Adjustable collision detection allows the system to respond to physical contact, supporting safer operation when the robot is used near people in appropriately designed applications. Its electromagnetic braking system also helps maintain the robot arm’s position in the event of a power loss.

End Effectors and Machine Vision

The CR3A also features dual end-effector interfaces, simplifying the connection of multiple peripherals and tools directly to the robot. With the appropriate gripper, vacuum end effector, dispensing tool or other specialised equipment, the same robot can be configured for a wide variety of manufacturing processes.

Machine-vision systems can also be integrated with the robot. Camera-based positioning and object recognition allow applications to be created in which workpieces do not always arrive in exactly the same position. Vision systems can support positioning, measurement, recognition and inspection processes, further extending the CR3A’s automation capabilities.

The CR3A is particularly suitable for precision assembly applications where smaller components need to be positioned or fitted repeatedly with a high degree of consistency. Its repeatability and compact dimensions make it well suited to electronics manufacturing, small-component production and other detailed assembly processes.

For pick-and-place operations, the robot can collect components from a defined location and transfer them to another position, conveyor, tray or production machine. When combined with machine vision, the position of objects can also be determined automatically, enabling more flexible material-handling applications.

The CR3A can also perform machine-tending operations, including loading and unloading components and transferring materials between different production machines. By automating repetitive handling processes, the robot can reduce the amount of monotonous manual work required within a production workflow.

Depending on the selected end effector and system configuration, CRA Series application areas also include assembly, bin picking, gluing, insertion, loading and unloading, palletising, material handling and welding. The specific workpiece, process and payload requirements determine which applications are most appropriate for the 3 kg CR3A model.

The DOBOT CR3A provides a flexible automation solution for manufacturing environments where the payload capacity of larger robots is unnecessary but precision, compact dimensions and straightforward reprogramming are essential. Its small footprint also makes it suitable for automating existing manual workstations without requiring a large dedicated robotic cell.

Its 3 kg payload, 620 mm working radius, ±0.02 mm repeatability, 6-axis movement, collaborative safety functions and extensive industrial communication and I/O capabilities combine to make the CR3A a versatile automation platform for precision assembly, material handling, machine tending and a wide range of other light-industrial applications.