In-place compensation
Load the tube, run the bend program, and compensate for the actual material without first making a throwaway test part for every setup.
CNC tube bending
Turn CAD tube designs into repeatable bends.
Three-axis automation for the Baileigh RDB-250, with a workflow designed around accurate parts and less trial-and-error.
Bending automation
Reduce scrap test parts and repeatable setup work.
The ARMA CNC Tube Bender kit works with the Baileigh RDB-250 to add three-axis CNC automation. Model tube and pipe projects in CAD and fabricate them quickly and accurately with a CAD-driven bending workflow.
It is intended as an affordable automation tool for individual builders, medium-sized businesses, and industrial manufacturers working with complex tube structures.
Designed for
- Repeatable round-tube and pipe bending
- Chassis, roll-cage, exhaust, and structural tube projects
- Builders moving from manual bend tables to CNC programs
- Shops that want to connect bending with ADS notching and fit-up
Compensation and accuracy
Account for the material you are actually bending.
Different stock materials can have different springback rates. The ARMA workflow is designed to measure and compensate in place instead of relying only on preset correction values.
CAD-aware geometry
ADS compensates for radial growth and the way tube length changes through a bend, helping the finished part match the software-generated design.
Approximately 0.1 degrees
Current product information places bending accuracy approximately in the range of 0.1 degrees, depending on material, setup, and operation.
Operating range
Round tube and pipe from 1 to 2 inches.
The bender is designed to bend metal tube and pipe from 1 inch to 2 inches diameter with wall thickness up to 3/8 inch. Square tubing is not supported by this product.
| Base machine | Baileigh RDB-250 programmable tubing bender with the table option. |
|---|---|
| Automation | ARMA three-axis CNC automation kit. |
| Tube range | 1 to 2 inches diameter. |
| Wall thickness | Up to 3/8 inch, subject to material and setup. |
| Supported profile | Round tube and pipe. Square tubing is not supported. |
| Customer supplies | Compatible RDB-250, table option, computer, tube stock, and required shop utilities. |
Connected tube fabrication
Design, notch, bend, and assemble from one model.
ADS can generate notch profiles for intersecting tubes, including tabs on one part and corresponding slots in the connecting part. The result helps parts fit in the correct location and reduces the jig scaffolding needed for complex structures.
Define the structure
Model the tube-frame geometry in ADS or import compatible third-party CAD geometry.
Generate notches and bends
Create bend programs, bend markers, notches, tabs, slots, and part information from the same project.
Fit the welded structure
Use the prepared tube parts to make alignment clearer and reduce manual trial-and-error during assembly.
Compatibility note: The kit requires a customer-supplied Baileigh RDB-250 with the table option and a customer-supplied computer. Confirm the base-machine configuration and your tube material with ARMA before ordering.
Planning a bending workflow?
Tell us your tube size, material, current bender, and expected part quantities.