Build the solution around the production requirement.
Three-axis, five-axis and servo options
A three-axis servo robot controls traverse, vertical and strip movement. Wrist rotation or additional servo axes can orient a component, present it to a fixture, separate it from a runner or place it into a tray. More axes are useful only when the production sequence needs them; the best architecture is the one that completes the real motion reliably inside the available cycle.
Top-entry or side-entry?
Top-entry Cartesian robots are mounted above the machine and keep the floor area comparatively clear. Side-entry automation can suit very fast cycles, low headroom or in-mould labelling layouts, but it changes guarding, access and machine-clear requirements. We review the mould, platen, tie bars, extraction path and downstream destination before recommending either approach.
What we engineer around the robot
The complete payload includes the finished parts, sprue, gripper, valves, sensors and cables—not only the moulded component. We confirm traverse, vertical and strip strokes; beam and mounting arrangement; safe-clear position; acceleration; machine signals; guarding; and the hand-off to conveyors, inspection, assembly or packaging.
Best-fit applications
Cartesian servo robots suit repeatable moulded-part take-out, dual-arm component and sprue handling, insert placement, cavity separation, tray loading and cooling-conveyor placement. For complex post-mould motion or many orientations, a Cartesian take-out robot can hand the component to a secondary six-axis robot.
Specification checklist
| Robot terminology | Cartesian robot, linear robot, top-entry robot, three-axis or five-axis servo robot |
|---|---|
| Inputs needed | Machine model, tonnage, platen, mould-open stroke, tie-bar spacing and interface |
| Load calculation | EOAT, parts, sprue, valves, sensors, cables and dynamic allowance |
| Output | Safe, oriented delivery to the agreed downstream process |
Frequently asked questions
Is a Cartesian robot the same as a take-out robot?
A Cartesian robot is one common take-out architecture. Its linear axes are especially suitable for entering the mould from above and transferring parts to a defined point.
How many servo axes are needed?
That depends on the extraction and placement path. Three controlled linear axes may be enough for simple take-out; wrist or extra axes help when parts must be turned, separated or presented accurately.
Can a Cartesian robot be retrofitted?
Often yes, subject to a suitable mounting, stroke envelope, controller interface, guarding and safe access. An application review is required before specification.