4-Axis Cartesian Take-Out Robots for Injection Molding

A fourth axis becomes relevant when the application requires part reorientation - inverting a part for placement, angling it into a fixture, orienting an insert before it goes into the mold, or handling overmolding sequences. Standard 3-axis take-out is sufficient when the part can be placed in its ejection orientation without further rotation.

A flip axis provides a single fixed rotation, typically 180 degrees, to invert a part between take-out and placement. Yushin's NC servo wrist units provide programmable, teach-and-save rotational control across two or three axes (A/C, B/C, or A/B/C configurations), allowing the robot to orient a part or insert at a range of angles rather than a single fixed flip.

Yes. Insert loading, overmolding, and complex orientation are advanced Yushin-supported applications, handled through engineered EOAT, insert-handling tooling, and NC servo wrist units. These applications require deeper engineering review, but they are supported Yushin America capabilities - confirm application-specific EOAT and servo wrist requirements with Yushin America.

Not necessarily. When the wrist or flip axis motion is executed simultaneously with the robot's traverse or return motion, it can add little or no net cycle time. When a dedicated orientation move is required, the time impact depends on the rotation angle, precision requirement, and application setup.

Yushin's standard take-out robot platforms can be configured with a flip axis or with NC servo wrist units for orientation control. Higher-end platforms support configurations with multiple total axes, including multi-axis servo wrist capability, for advanced orientation and safety-critical applications. Confirm model fit, axis configuration, and specifications with Yushin America for your application.