Precision Phone-Screen Lamination
Customer: A leading smartphone brand
EPG-HP high-precision electric grippers achieve micron-level lamination between the screen and mid-frame, overcoming the low yield and slow throughput of traditional lamination processes.
Customer Challenges
As smartphone screens grow larger and bezels narrower, the lamination precision between screen and mid-frame has become increasingly demanding. Traditional processes rely on pneumatic grippers or manual lamination, suffering from unstable accuracy, uncontrollable force, and fluctuating yield. The customer required a high-precision, force-controlled electric gripper to accurately pick and laminate screens, sustaining a lamination yield above 99.5%. With the line running 24 hours a day, the gripper also needed long service life and minimal maintenance.
Extreme Precision Requirements
Screen lamination position accuracy must be within ±0.02mm; any positional deviation causes screen offset, uneven bezels, and other cosmetic defects.
Precise Force Control
Screens are glass; excessive gripping force cracks the screen, while insufficient force leads to unstable picking. The force-control window is extremely narrow.
Fast Cycle Time
The smartphone line requires the entire pick-move-laminate cycle to be completed within 3 seconds.
High Stability Requirements
The line runs 24/7; the gripper must hold its precision over long operation without drift and feature a long MTBF.
Jodell Solution
Jodell recommended the EPG-HP series high-precision electric parallel gripper. Equipped with a high-precision servo motor and precision ball-screw drive, the EPG-HP delivers ±0.01mm repeatability and 0.1N force-control resolution, perfectly meeting the precision and force requirements of screen lamination. Key features: 1) Micron-level repeatability ensures consistent pick position every cycle; 2) 0.1N-class force resolution allows precise gripping-force setting, preventing screen cracking while ensuring stable picking; 3) Built-in position and force sensors provide real-time gripping feedback and instant alarm on anomalies; 4) 5 million-cycle service life supports 24/7 continuous production; 5) Profinet bus support enables seamless integration with the customer's line PLC.
Products Used
Customer Value
"The accuracy and force control of the Jodell EPG-HP gripper exceeded our expectations. After go-live, lamination yield has held steadily above 99.8%, significantly lowering our quality cost. Compared with pneumatic grippers, the electric gripper offers more precise force control and traceable data — the ideal choice for precision 3C manufacturing."
Automation Engineering Director, a Smartphone Brand
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