ERGG Dual-Gripping Electric Rotary Gripper
An innovative dual-gripper design mounts two grippers symmetrically on a rotary platform. While one gripper picks a part, the other places one; a 180° rotation completes the loading/unloading exchange. It sharply cuts non-machining time and improves cycle efficiency by over 50%, making it ideal for machine tool tending and high-speed pick-and-place.
The Cycle-Time Multiplier for High-Speed Loading/Unloading
The ERGG dual-gripping electric rotary gripper mounts two independently controlled grippers symmetrically at both ends of a rotary platform. A rapid 180° rotation swaps their positions: while one gripper processes a part at the machining station, the other picks a new part at the loading station. After machining, another rotation exchanges them for zero-wait loading/unloading.
Compared with a conventional single-gripper approach (pick→load→retract→unload→pick again in series), the dual-gripper design overlaps loading/unloading with machining, cutting overall cycle time by 30%-60%. It is widely used in CNC machine tending, stamping automation, injection molding part removal, and high-speed sorting.
Core Product Advantages
Dual-Gripper Exchange
180° rotary exchange lets loading/unlining run parallel to machining, boosting cycle efficiency by over 50%.
High-Speed Rotation
Rotary exchange time under 0.3s with fast response minimizes waiting time.
Independently Controlled
Two grippers driven by independent motors, each with configurable grip force and stroke for different workpieces.
High Rigidity
An integrated, high-rigidity rotary platform with high repeatability for high-speed, heavy-load applications.
Flexible Configuration
The two grippers can be fitted with different fingers to handle two different parts simultaneously.
Bus Control
EtherCAT bus control supports high-speed real-time communication for seamless integration with machines and robots.
Specifications
| Parameter | ERGG-50 | ERGG-100 |
| Grip Force per Gripper | 10-50N | 30-150N |
| Stroke per Gripper (per side) | 10mm | 20mm |
| Rotary Exchange Angle | 180° | |
| Rotary Exchange Time | <0.3s | <0.5s |
| Repeatability | ±0.02mm | ±0.03mm |
| Payload | 1kg | 3kg |
| Communication Protocol | EtherCAT | |
Typical Applications
CNC Machine Tending
Machining center part exchange
Stamping Automation
Stamping part pick & place
Injection Molding Removal
Product removal from injection molding machines
High-Speed Sorting
High-speed sorting and tray arrangement
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Get Your High-Speed Loading/Unloading Solution
Dual grippers work in parallel for 50% higher efficiency and significantly shorter cycle times