3FG25 – Heavy-Duty Electric Gripper

Introduction

The 3FG25 Heavy-Duty Electric Gripper is a powerful and versatile three-finger robotic gripper engineered for demanding industrial applications. Designed with high payload capacity, long stroke, and adaptive gripping technology, the 3FG25 is the ideal solution for handling large cylindrical objects, irregular parts, and heavy components across automotive, aerospace, machining, logistics, and metalworking industries.

Unlike pneumatic or hydraulic grippers, the 3FG25 leverages electric servo actuation for precise force control, energy efficiency, and simplified integration with collaborative robots (cobots) and industrial robotic arms.

1. Design and Construction

The 3FG25 is engineered with reinforced steel components and aerospace-grade aluminum, ensuring durability under continuous operation. Key design highlights include:

• Three symmetrical fingers supporting internal and external gripping.
• Large adjustable stroke of up to 150 mm for wide part handling.
• Heavy-duty load capacity of up to 25 kg.
• IP67 protection against dust and fluids, suitable for harsh environments.
• Compact yet robust housing designed for seamless robot integration.

2. Working Principle

The 3FG25 employs servo-driven electric actuation with closed-loop feedback:

• Force range up to 250 N, adjustable for fragile or robust gripping.
• Repeatability of ±0.03 mm, ensuring high precision.
• Three gripping modes:
  1. External Grip – secure clamping of external surfaces.
  2. Internal Grip – expansion inside hollow parts.
  3. Adaptive Mode – flexible adjustment to irregular shapes.

This advanced design eliminates the need for external air supply, reducing cost and maintenance while delivering high-performance handling.

3. Technical Specifications

4. Key Advantages

1. Heavy-duty performance – can grip large, heavy, or awkward parts up to 25 kg.
2. Electric actuation – no pneumatics required, lowering cost and complexity.
3. High precision – suitable for both robust clamping and delicate handling.
4. Durability – IP67 sealed housing enables use in machining, welding, and harsh environments.
5. Plug-and-play compatibility – supports Universal Robots, FANUC, ABB, KUKA, Yaskawa.
6. Energy efficiency – consumes less than 40W power.
7. Versatile gripping – handles cylindrical, hollow, or irregular parts with ease.

5. Application Scenarios

• Automotive & Heavy Machinery – gripping large gears, axles, and transmission parts.
• Metalworking & CNC Machining – loading/unloading heavy metal billets or parts.
• Logistics & Packaging – palletizing barrels, pipes, and heavy boxes.
• Aerospace & Defense – precise handling of alloy components and engine parts.
• Energy & Construction – gripping pipes, valves, and structural components.

6. Integration and Compatibility

• URCap software package for Universal Robots.
• Preconfigured drivers for ABB, FANUC, KUKA, Yaskawa.
• Industrial PLC support via PROFINET and Ethernet/IP.
• Open API and SDK for custom automation solutions.

7. ROI and Benefits

• Reduced downtime – one gripper for multiple part types.
• Lower operating cost – electric drive reduces pneumatic infrastructure.
• Energy savings – low power consumption.
• Improved product quality – stable and repeatable gripping prevents damage.
• Fast ROI – typically within 10–14 months.

8. Maintenance and Reliability

• No lubrication required.
• IP67 sealing ensures long life even in coolant/oil environments.
• Self-diagnostics with sensor feedback.
• Lifespan exceeding 8 million cycles.

Conclusion

The 3FG25 Heavy-Duty Electric Gripper is the ultimate solution for manufacturers seeking a powerful, precise, and adaptive robotic end-effector. With its 25 kg payload capacity, IP67 protection, and advanced servo-electric actuation, it redefines gripping performance for modern automation.

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