On an industrial production line, the setup time for a tube bending machine can have a significant impact on productivity.
Whenever it is necessary to change the reference point, adjust tools, load a new program, or prepare the machine for a new production run, there is a period during which the equipment is not actually producing.
In environments with a wide variety of parts or short production runs, these times add up quickly.
Reducing setup time means increasing machine uptime, improving production flexibility, and making better use of each work shift.
If you want to optimize this type of process, check out VLB’s tube bending machines, which are designed for different levels of complexity, productivity, and automation.
What is the setup time for a tube bending machine?
Setup time is the time required to prepare the machine between two different production runs.
It may include tasks such as:
- Tool Change
- Adjusting Dies and Molds
- Loading Programs
- Parameter Settings
- Component Placement
- Initial tests
- Validation of the first part
The greater the number of references produced, the greater the impact of these unproductive periods may be.
Why is it important to reduce setup time?
Reducing setup time allows for an increase in the amount of time the machine is actually producing.
Among the main benefits are:
- Higher equipment availability
- More parts produced per shift
- Shorter downtime
- Greater flexibility for small batches
- Faster production changes
- Better use of resources
This improvement is particularly relevant for companies that work with many different models or produce to order.
How does CNC technology help reduce setup time?
CNC bending machines allow you to store programs and parameters associated with different parts.
When a part number goes back into production, the operator can restore the previously defined settings instead of having to reprogram the entire process.
This helps reduce:
- Programming time
- Data Entry Errors
- Manual adjustments
- Number of tests required
In addition, CNC control allows for greater precision and repeatability in movements.
VLB’s line of CNC bending machines was developed to meet a variety of production requirements and facilitate the management of processes involving multiple part numbers.
Does organizing your tools properly make a difference?
Yes.
An important part of the setup involves preparing and changing tools.
Having dies, clamps, and other components properly labeled and organized reduces the time needed to locate and install each component.
Some best practices include:
- Clearly identify each set of tools
- Store tools by reference
- Keep sets complete
- Establish exchange procedures
- Prepare the tool for the next production run in advance
These are simple steps, but they can lead to significant benefits when repeated several times a day.
Can external preparation reduce downtime?
Whenever possible, certain tasks should be performed while the machine is still producing the previous batch.
For example, you can prepare the following in advance:
- Tools
- Material
- Documentation
- CNC Program
- Parameters of the new standard
That way, when the time comes to move, most of the work will already be done.
The goal should be to minimize the tasks that can only be performed while the machine is stopped.
Does the software also affect setup time?
Yes.
A simple and intuitive programming system—such as the VLB Group software used in our machines and developed entirely by our team—can significantly reduce the time needed to set up new parts.
The ability to work with digital geometries, save programs, and reuse settings makes it easier to switch between different reference systems.
The software can also help reduce errors before production begins.
When programming and process preparation are more efficient, the need for repeated adjustments to the machine is reduced.
Should the first piece be part of the optimization?
Yes.
The setup doesn’t necessarily end when the machine starts running.
If multiple test pieces are needed to achieve the correct geometry, that time still represents a loss of productivity and raw materials.
More precise programming, appropriate tools, and pre-validated parameters help reduce the number of tests required.
The goal should be to make the first part produced as close as possible to the final part.
Does repeatability help reduce the need for future preparations?
A machine with high repeatability makes production changeovers significantly easier.
If the movements and parameters are reproduced consistently, it is possible to return to a previous reference with fewer adjustments.
This is particularly important in companies that periodically produce the same parts.
Instead of rebuilding the entire process from scratch, the previously validated program can serve as a starting point for a new series.
When does it make sense to automate the process?
Automation can be particularly useful when production volume increases or when there are repetitive loading and unloading operations.
An automated solution can integrate:
- Robots
- Automatic feeding
- Loading systems
- Automatic download
- Transfer of Parts Between Operations
In these cases, in addition to reducing setup time, it is also possible to shorten wait times between cycles and reduce the need for manual intervention.
Does operator training also affect the setup?
No doubt about it.
Even on a technologically advanced machine, a well-trained operator can carry out production changes more quickly and consistently.
The training helps improve:
- Knowledge of the machine
- Preparing the Tools
- Using the Software
- Problem Identification
- Sequence of operations
Standardized procedures also help ensure that different operators prepare the product in the same way.
How can you tell if the setup is actually improving?
To optimize a process, you first need to measure it.
Some useful indicators include:
- Average setup time
- Number of shifts per shift
- Machine downtime
- Number of test pieces
- Waste during preparation
- The time between the last good installment in a series and the first good installment in the next one
By tracking these metrics over time, it becomes easier to identify opportunities for improvement and determine whether the changes implemented are yielding results.
Is minimizing setup time especially important for small series?
Yes.
In large production runs, setup time ends up being spread across thousands of parts.
When production consists of short series, the impact is much greater.
Imagine two situations:
A machine takes 30 minutes to set up production of 10,000 units.
Another one takes the same 30 minutes to produce just 100 pieces.
In the second scenario, the setup cost accounts for a much larger portion of the cost of each component.
That is why setup speed has become an increasingly important factor in industrial environments with a wide variety of products.
Technology and process must work together
Reducing setup time doesn’t depend solely on the machine.
The best results come when technology, organization, and work methods are considered together.
A modern machine can make the process much easier, but it is equally important:
- Standardize procedures
- Prepare tools in advance
- Organize References
- Save validated programs
- Training operators
- Track times
This combination makes it possible to increase productivity without necessarily increasing the number of units installed.
Conclusion
Reducing setup time on a tube bending machine is one of the most effective ways to increase equipment availability and improve production efficiency.
CNC programming, tool organization, advance preparation, operator training, and automation are some of the factors that can help reduce downtime between production runs.
In an industrial context increasingly focused on flexible production and multiple product variants, this capability can become a significant competitive advantage.
If you want to optimize your production process, learn more about VLB’s tube bending machines or contact VLB’s technical team to discuss the solution that best fits your production needs.
Written by: Vasco Barros
