How to Choose the Right Industrial Robot for Your Manufacturing Process?
Choosing an industrial robot is an important investment for any manufacturing operation. The right model can improve productivity, process consistency, workplace safety and long-term operating efficiency, while an unsuitable robot may create integration problems and unnecessary costs. Rather than selecting a robot based only on payload or speed, manufacturers should evaluate the complete production process. This guide highlights the most important aspects one has to keep in mind when selecting an industrial robot and shows how working with an experienced industrial robot manufacturer can help you find a solution that fits your production needs.
Define Your Manufacturing Requirements
Before comparing robot models, you need to be very clear about what the robot should be able to do. Understanding the manufacturing process is the basis for any further specification decisions.
Identify the Robot Application
Industrial robots may be used for different purposes. Such applications as welding, palletizing, material handling, painting, injection molding, assembly, cutting, grinding, loading and unloading each may imply different types of robots.
Start by identifying the main operation, the required movement pattern and how the robot will interact with the workpiece. In particular, a palletizing application will focus on payload and speed, while the welding application may be more concerned with positioning.
Evaluate Workpieces and Production Volume
The workpiece is another factor to consider in choosing a robot. Consider its weight, dimensions, shape, material and surface characteristics. At the same time, determine how many pieces the robot must process per hour and what cycle time the production line requires.
High-volume production may benefit from a robot optimized for speed and continuous operation, while flexible manufacturing may place greater emphasis on programming and changeover capabilities.
Match Payload and Reach
Once the application is clear, match the robot’s physical capabilities to the workstation.
Calculate the Required Payload
The payload will indicate how much load the robot can carry. However, users should not calculate this based only on the workpiece weight.
Total load may include:
✔ Additional end-of-arm equipment
A robot operating close to its maximum payload may not provide the same practical flexibility as one with sufficient capacity for the complete tooling setup. Therefore, select a suitable payload rating based on the actual application.
Check Reach and Working Envelope
In addition, the robot needs to reach every required position within the production cell. Measure the distance between the point where the robot will be mounted and the workpiece, as well as the necessary height and depth.
Not always will a long reach be a good choice. An excessive size of the robot will lead to increased costs of equipment and loss of precious floor space.
| Specification | What Buyers Should Check | Why It Matters |
|---|---|---|
| Payload | Workpiece plus tooling weight | Prevents overload and supports stable operation |
| Reach | Required working distance | Ensures all work positions are accessible |
| Axes | Required movement and orientation | Determines motion flexibility |
| Repeatability | Required positioning consistency | Influences process quality |
| Speed | Required production cycle time | Affects production capacity |
| IP rating | Actual production environment | Helps ensure suitable protection |
Compare Axes, Speed and Precision
Physical capacity alone does not always define whether an industrial robot is suitable. Motion flexibility and positioning performance are equally essential criteria.
Find the Right Axis Configuration
The number of robot axes should correspond to the complexity of the required movement.
Four-axis robots can be suitable for applications involving relatively straightforward movements, such as certain high-speed handling and palletizing tasks. Five-axis configurations can provide additional flexibility for specific manufacturing operations, while six-axis robots allow more flexibility in positioning and orientation of the tool.
For applications such as welding, spraying, assembly or complex material handling, additional axes can make it easier to approach the workpiece from different directions.
Balance Speed With Repeatability
Maximum speed cannot be evaluated separately from actual production cycle time. Many factors can affect the speed and productivity of the process, such as acceleration and deceleration, travel distance, tooling, and operation completion.
Repeatability is also important when the robot repeatedly performs the same operation. The balance depends on the application. A robot capable of very fast motion but incapable of providing required repeatability may not improve the overall production process.
Consider Environment and Integration
A robot could function excellently in a laboratory setting or in a standard factory but may require a certain set of specifications when placed in demanding production conditions.
Check Environmental Protection
It’s important to ensure that you know the environment in which your robot will operate before making your purchase. The production environment could be dusty, moist, oily, with welding sparks, paints, chemicals, or elevated temperatures.
Check specifications such as IP protection and operating temperature range against the actual workstation.
Plan Tooling and Machine Integration
An industrial robot is normally part of a larger automated production process, and thus its ability to interface with other pieces of equipment can be as important as the robot itself.
Consider how the robot will connect with:
✔ Safety equipment
Manufacturers must establish the interfaces needed, the type of communication, tooling and working space available before placing an order.
Evaluate Control and Production Flexibility
The robot’s performance also depends on how easily it can be programmed, operated and adapted to production changes.
Review Programming and Communication
Check the robot controller, programming interface and communication capabilities before making a purchase. The system may need to communicate with PLCs, conveyors, sensors, machine tools or other automation equipment.
Manufacturers should also consider how easy to operate and learn the system is for the operator and maintenance staff. Ease of management of the programming environment can help to cut down the training costs.
Consider Product Changeovers
Production requirements may change over time. A manufacturer might introduce new products, modify workpiece dimensions or change the sequence of operations.
If the production line handles multiple products, flexible programming and suitable tooling can become particularly valuable. Buyers should therefore consider not only what the robot can do today but also whether it can adapt to foreseeable production changes.
In particular, if one needs to compare robots of an industrial robot supplier for a long-term project of automation, the robot must meet the manufacturer’s strategy in production.
Calculate Total Investment and ROI
The purchase price of the robot is only one part of the investment. A realistic evaluation should include the complete cost of implementing and operating the automated system.
Consider these major cost factors:
- Equipment
Robot, controller and related components
- Tooling
Grippers, welding equipment or other end-of-arm tools
- Integration
Installation, programming and commissioning
- Operation
Energy, consumables and routine operating expenses
- Maintenance
Service, spare parts and potential downtime
The expected return should also be considered. Instead of asking whether one robot has the lowest purchase price, manufacturers should compare the expected total cost of ownership and production value over the equipment’s service life. A slightly higher initial investment may be worthwhile if the selected robot provides better integration, more suitable payload capacity or greater flexibility for future production.
Choose the Right Industrial Robot Supplier
Selecting the robot manufacturer is the final step, but it can strongly influence the success of the entire project.
Check Manufacturing and Application Capability
A capable industrial robot manufacturer should be able to discuss more than catalog specifications. The supplier should understand the application, workpiece, payload, reach, cycle time, tooling and production environment.
Application experience is particularly valuable when the project involves welding, painting, injection molding or other process-specific operations.
Times Brilliant’s industrial robot portfolio covers multiple manufacturing applications and different payload, reach and axis configurations. The product application cases also include robot debugging and testing for specific production requirements.
Evaluate Customization and After-Sales Support
All production lines cannot always be configured using a ready-made setup. Inquire as to whether the industrial robot manufacturer is capable of assessing custom needs and helping decide the right configuration.
After-sales capability should also be evaluated. Installation, commissioning, programming assistance, operator training, troubleshooting and spare-parts support can all influence the long-term value of the investment. A supplier that can support the project beyond the initial sale can make the transition to robotic automation more manageable.
Conclusion
Choosing the right industrial robot requires more than comparing price, payload or maximum speed. Manufacturers should begin with the production process and then consider payload, reach, axis design, speed, repeatability, environmental factors, tooling, integration, programming and total cost of ownership.
The right industrial robot supplier can make this process easier by helping match robot specifications to the actual manufacturing process. With a range of industrial robot configurations, multiple application areas and customization capabilities, Times Brilliant can provide application-oriented automation solutions. Send Your Manufacturing Specs, Get a Tailored Solution Today.
