Case Study: Improving Precision and Part Protection on Automated Assembly Lines with the Three Jaw Pneumatic Gripper
Customer Background
A manufacturer of automated assembly equipment was facing two recurring problems on its pick-and-place stations: inconsistent centering when handling cylindrical components, and surface damage on finished parts caused by metal gripper jaws. The company needed a compact, reliable clamping solution that could fit its mini robot arms while delivering both accuracy and gentle handling.
The Challenge
- Two jaw grippers could not guarantee concentric positioning of round workpieces
- Metal jaws scratched and marred delicate component surfaces
- Lack of position feedback made sequence control unreliable
- Frequent changeovers between part sizes slowed production
The Solution
Elite Mold Tech proposed the three jaw pneumatic gripper with a 4-70mm gripping range, equipped with rubber sleeve jaws and an integrated magnetic switch. The self-centering three jaw mechanism ensures every workpiece is gripped from the exact center, while the rubber sleeves protect surfaces and provide a secure, high-friction hold. The magnetic switch delivers real-time open/close feedback to the PLC, enabling precise and repeatable automation sequences.
Key Outcomes
| Centering Accuracy | Significantly improved with self-centering three jaw action |
| Part Protection | Surface scratches eliminated thanks to rubber sleeve jaws |
| Process Reliability | Enhanced by magnetic switch position feedback |
| Changeover Flexibility | One gripper handles parts from 4mm to 70mm |
| Integration | Compact body mounts easily on mini robot arms |
Why the Customer Chose Elite Mold Tech
The customer selected Elite Mold Tech for the gripper’s combination of precision engineering, customizable options, and responsive technical support. With OEM/ODM capabilities, Elite Mold Tech tailored the jaw configuration and sensor setup to the customer’s exact production requirements.
Conclusion
By upgrading to the three jaw pneumatic gripper, the customer achieved more consistent clamping, eliminated part damage, and simplified its changeover process — all with a single, cost-effective gripper model. This case demonstrates how the right end-of-arm tooling can directly improve production quality and efficiency.
Looking for a similar solution for your automation line? Visit www.elitemoldtech.com or contact Elite Mold Tech for a customized gripper solution.
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