Key Takeaways
End of arm tooling (EOAT) refers to the devices that attach to the faceplate of an industrial robot, allowing it to grip, manipulate, and perform tasks such as assembly, welding, or material handling processes. This guide explains the different types of EOAT and highlights how choosing the right tooling improves efficiency, precision, and flexibility.
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End of arm tooling (EOAT) is an essential component in material handling automation. It’s important to have a comprehensive understanding of its key features and capabilities to ensure maximum efficiency for your production line. Let’s review what EOAT is, the different types that are available, and the benefits of adding robotics to your operations.
What Is End of Arm Tooling?
End of arm tooling (EOAT) is the device that attaches to the faceplate of an industrial robot. EOAT systems can be used to precisely grip, hold, and manipulate components during automated manufacturing processes, which increases precision and efficiency in production.
With the specialized design of EOAT, industrial robots can complete the following tasks and more:
- Machine tending: improves machine capacity and uptime by loading and unloading from the machine tool when the machine is complete.
- Laser cutting: able to pick from the parts table.
- Sealant application: consistently and accurately dispenses sealant products.
- Assembly: assembles more quickly and precisely.
- Pick and place: accurately picks and places products into shipping cartons.
- Welding: delivers consistent, accurate, and tireless welding work.
- Palletizing and depalletizing: reduces injury and increases efficiency.
- Material removal: automates deburring, grinding, polishing, and cutting to achieve consistent results for high-mix or hard-to-staff work.
When Do You Need EOAT?
No matter the task, automation rewards you with efficiency, speed, and accuracy every time, plus less waste and damage to products. All robotic applications require EOAT, whether it’s used to grip a part or hold a process tool as it works on a stationary part. Here are a few practical applications that can help you decide if robotics is right for your operations:
- You want to automate picking or palletizing processes
- You handle irregular or fragile products
- You want to increase throughput while reducing reliance on hard-to-staff roles involving manual labor
EOAT Types Explained & How to Choose the Right One for Your Application
There are many different kinds of robotic grippers. A few of the go-to gripppers are: vacuum grippers, bag grippers, pneumatic, and servo-side grippers. Each type of robot gripper has its own advantages and disadvantages that should be considered when choosing the right type of tooling for a given application.
End of arm tooling grippers can be used to:
- Move and manipulate objects, ranging from heavy to lightweight and fragile
- Pick up parts and components
- Perform automated assembly tasks
- Complete palletizing or depalletizing
Selecting the appropriate EOAT depends on several key factors:
- Cycle time requirements – Does the application require picking multiple parts at once to meet throughput goals?
- Payload considerations – Is the robot properly sized to handle the combined weight, moments, and inertia of the tool and part?
- Part variability and fragility – Does the gripper need to accommodate variation in part size or handle delicate components without causing damage?
- Application strategy – For larger or heavier parts, it may be more effective to bring the process tool (e.g., grinder, welding torch) to the part rather than moving the part itself.
Properly evaluating these factors ensures the EOAT is both effective and aligned with the overall system performance requirements. An experienced robotic system integrator can help you determine what’s right for your specific needs.
Comparing Types of Robotic Grippers
The right choice depends on your product, handling requirements, and goals. The table below provides a quick way for you to compare the most common options for end of arm tooling for robots. It’s important to note that most gripper types are customized to fit your specific application.
| Gripper Type | Best For | Key Advantages | Limitations | When Not to Use This | Typical Application |
|---|---|---|---|---|---|
| Vacuum Grippers | Boxes, flat surfaces, rigid packaging | Fast, simple design, handles multiple items | Struggles with porous or irregular items | Porous materials (mesh, fabric), uneven surfaces, or products that can’t maintain suction | Case picking, palletizing, packaging |
| Bag Grippers | Bags, sacks, flexible packaging | Designed for unstable or shifting loads | Limited to specific product types | Rigid items, uniform cartons, or applications requiring precise positioning | Food, ag, bulk materials |
| Pneumatic Grippers | Simple pick-and-place, consistent parts | Cost-effective, reliable, easy to maintain | Limited precision and control | Applications requiring variable grip force, delicate handling, or multiple product types | Assembly, material handling |
| Servo Grippers | Precision handling, variable products | High control, adjustable force/precision | Higher cost, more complex | Simple, high-speed applications where cost and simplicity are more important than flexibility | Electronics, fragile items, mixed SKUs |
Quick Selection Guide
- Handling boxes or uniform products? Start with vacuum grippers.
- Handling bags or flexible products? Consider bag grippers.
- Application simple and repetitive? Pneumatic grippers may be sufficient.
- Need precision or flexibility across products? Look at servo grippers.
Vacuum Grippers
Vacuum grippers are a popular end-of-arm tooling choice in manufacturing due to their high level of flexibility. As the name suggests, vacuum end of arm tooling uses vacuum cups or pads to create a secure grip.
Vacuum EOAT grippers are are ideal for applications where objects must be moved quickly and accurately, such as in packaging lines or palletizing.
Key Features & Comparisons – Vacuum Grippers
Bag Grippers
Bag grippers are made with heavy-duty fingers that typically mesh with inbound rollers. This makes them popular in most bulk bagging applications. They can typically handle bags up to 80 pounds.
Key Features & Comparisons – Bag Grippers
Pneumatic Grippers
Pneumatic grippers are the strongest type of robotic gripper and are used in applications that require a lot of force to securely hold parts. They generate their strength from pneumatic cylinders that are pressurized and generate forces up to thousands of PSI.
Key Features & Comparisons – Pneumatic Grippers
Servo-Electric Grippers
Servo-side grippers are becoming more and more popular because they’re easy to control. servo motors control the gripper jaws, which are very flexible and can handle a variety of materials. With the servo control, you can easily adjust the speed, location and forces on the fly between products.
Servo-side grippers are well-suited for precision applications and allow the user to regulate the speed and grip force on demand. They’re often used in machine tending or pick and place applications for fragile items or shelf pack cases.
Key Features & Comparisons – Servo-Electric Grippers
Robotic Welding Torches
Robotic welding torches rapidly weld multiple parts with accuracy. They can be used for both MIG (Metal Inert Gas) and TIG (Tungsten Inert Gas) welding processes, allowing users to achieve higher levels of accuracy and productivity than manual welding.
Robotic Tool Changers
A robotic tool changer quickly and efficiently switches between different tools or attachments. It usually has two main components: a mounting plate that attaches the tool to the robot, and an actuator that allows the tool to be removed from the robot and placed back into it without having to manually remove it. Having an EOAT quick change option is especially helpful if you have a line that runs multiple products.
Where EOAT Fits with Your System
EOAT is just one part of your automated line, as it integrates with the robot, material handling flow and overall system design. You’ll want to think through how it fits with your full system. Some considerations include:
- Product flow and spacing
- Throughput requirements
- Integration with robotic vision or sensing systems
- Future scalability as you grow
Here are a few ways how EOAT might fit with your system.
Robotic Palletizing
The right EOAT helps you improve speed, accuracy and load stability as you pick, orientate and place products on pallets.
Robotic Depalletizing
If you depalletize mixed or unstable loads, the right EOAT can help you easily adapt to variations in product type, orientation and condition.
Conveyor Systems
The right EOAT integration with your conveyor systems depends on how products are presented, spaced and transferred. Your conveyor design and speed impacts grip consistency and cycle time.
High-Speed Pick and Place
If you’re in a high-throughput industry, such as food manufacturing or consumer goods, the right EOAT can speed up your pick and place process for packaging or sorting lines.
This type of EOAT requires lightweight, fast-response grippers, such as vacuum or hybrid.
Automated Assembly
If you use a robot to handle, position or precisely assemble components, your EOAT may include pneumatic or servo grippers. Depending on the application, you may also need sensors or compliance mechanisms.
Automated Machine Tending
Machine tending robots used with CNC, presses or injection molding have specialized EOAT to load/unload machines and move parts between processes. This requires reliable gripping for consistent parts.
Automated Case Forming & Packing
In food & beverage, consumer goods and ecommerce operations, EOAT plays a key role in supporting end-to-end packaging automation by forming cases and placing products within them.
Unlock Efficiency with Custom End of Arm Tooling Solutions
Over the years, technology has evolved significantly for industrial robotics and end of arm tooling, allowing for faster and more precise robotic operation.
Improvements in control systems have allowed for faster robot movements, enabling robots to handle complex tasks quickly and efficiently. Sensors and cameras have improved vision-based tasking capabilities and have enabled robotic arms to precisely pick up parts or tools, even if they are not in an ideal position.
In addition, advances in grippers and other EOAT systems have made it easier to switch between different attachments or tools without having to manually configure them.
Ready to design a custom end of arm tooling solution? Our team of authorized FANUC robot integrators are ready to assist you. For more than 80 years, RMH Systems has led the way in material handling automation and industrial automation systems trusted by local manufacturers and Fortune 50 companies.
We simplify the end of arm tooling design process by handling it fully in-house, from engineering and implementation to aftermarket service. Contact us today to request a free, no-pressure automation consultation!
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