Reliable pickup
Grip points, cups, fingers and support surfaces are placed around the actual release behaviour, hot-part stiffness and allowable contact areas.
Grip, verify and release
Injection moulding EOAT and robot grippers
End-of-arm tooling designed around the mould, product, runner, temperature, release direction, sensing requirement and next production operation.
Application-specific toolingGrip · Sense · Separate · Place
What is injection moulding EOAT?
End-of-arm tooling is the application-specific equipment attached to a robot or manipulator. It makes contact with the moulded parts, sprues, runners or inserts and determines whether the automatic cycle can grip reliably, confirm pickup, clear the mould, protect the product and release it in the correct position.
Tooling follows the moulding
The gripper is part of the process.
EOAT mass, stiffness, geometry and services affect robot payload, acceleration, mould access, cycle time and maintenance. It should be developed with the robot and cell layout.
Positive confirmation
Vacuum switches, part-present sensors, jaw confirmation or vision can prevent an incomplete pickup becoming a mould or quality problem.
Controlled placement
The tool maintains cavity identity and orientation where parts move into cooling, inspection, assembly, trays, conveyors or packaging.
EOAT design inputs
Use the actual part and mould data.
Early samples and 3D data reduce uncertainty, but the design also needs the dynamic production conditions that drawings may not show.
Send tooling details- 01Part and runner geometry, mass and cavity layout
- 02Mould opening, release direction and ejector sequence
- 03Part temperature and stiffness at pickup
- 04Cosmetic surfaces and permitted grip zones
- 05Release force, draft and likely deformation
- 06Robot wrist, payload, acceleration and usable strokes
- 07Available air, vacuum, electrical and sensor services
- 08Required orientation, separation and placement accuracy
Gripping and sensing options
Combine the methods the application needs.
Many moulding tools use several gripping and verification methods on one lightweight frame.
Vacuum gripping
Suitable cup material, shape and distribution can support large or delicate surfaces. Vacuum generation, leakage and confirmation thresholds must suit the real part.
Mechanical gripping
Parallel, angular or custom fingers can grip ribs, bosses, runners and edges where positive retention is required.
Needle or specialist gripping
Some soft, textile or difficult surfaces need application-specific gripping methods assessed against product damage and maintenance.
Part and sprue circuits
Independent gripping and sensing can keep finished components separate from runners and route both streams correctly.
Insert loading
Compliant location, positive retention and pickup/placement checks help protect the mould before permission to close is released.
Quick change
Mechanical, pneumatic and electrical quick-change arrangements can shorten product changeovers when alignment, identification and safe service isolation are designed in.
EOAT questions
Practical answers for tooling scope.
01What is EOAT for an injection moulding robot?
End-of-arm tooling is the application-specific equipment attached to the robot wrist or arm. It grips, supports, senses, separates and releases the moulded parts, runners or inserts required by the automatic cycle.
02Should an injection moulding gripper use vacuum or mechanical fingers?
The choice depends on part geometry, surface, temperature, stiffness, draft, release force and acceptable grip areas. Many tools combine vacuum, mechanical fingers, runner grippers and sensors rather than relying on one method.
03Can one EOAT handle the part and sprue?
Yes, when the robot payload, mould access and cycle allow it. Separate circuits and sensing can confirm the finished part and runner before the tool clears the mould and routes each stream to the correct destination.
04What information is needed to design EOAT?
Provide 3D product and mould data where available, part and runner samples, weights, cavity layout, release direction, temperature, surface requirements, cycle time, robot details, utilities and the required placement or downstream operation.
Define the grip before the motion
Send the part, mould and robot information.
Include samples or 3D data, cavity layout, release sequence, cycle target, surface requirements and the intended placement destination.