Tube bending machines are indispensable equipment in countless industries, from automotive to aerospace, construction, energy, and furniture.
Thanks to the evolution of CNC technology and advanced electrical systems, producing highly complex tubular parts with millimeter precision, high repeatability, and lower energy consumption is now possible.
The VLB Group, a leader in manufacturing tube and plate forming solutions, offers a complete range of tube bending machines, from the EB, EB-HD, and EB-HD-UD series to ECO hybrid solutions.
Each series has been designed to meet the specific requirements of modern industry, ensuring innovation, productivity, and consistency.
This article explores the main series of tube bending machines, their technical characteristics, applications in different sectors, and strategic benefits for companies.
What are Tube Bending Machines and how do they work?
Tube bending machines are industrial equipment designed to shape metal tubes at different angles and bending radii without compromising the material’s structural strength
- Bending head – where the tube is shaped.
- Clamping and rotation systems – which ensure stability during operation.
- CNC axes – controlled by software, which allows for precise and repeatable movements.
- 3D simulation software – which anticipates collisions and optimizes production cycles.
See all VLB tube bending machines
Advantages of CNC Tube Bending Machines
- High precision.
- Consistency in mass production.
- Flexibility for different diameters and materials (steel, copper, aluminum, stainless steel).
- Less material waste.
- Reduced maintenance costs.
- Integration with robotic cells for 24/7 automatic production.
VLB Group Tube Bending Machine Series
1. EB Series (Fully Electric CNC Bending Machines)
- Diameter: 6 to 83 mm.
- Up to 11 fully electric axes.
- Booster system for radii up to 1D.
- Optimized energy consumption.
Applications: Automotive, metal furniture, HVAC.
Learn more about the EB Series
2. EB Series – Heavy Duty (HD)
- Diameter: 18 to 150 mm.
- Up to 11 electric axes.
- High robustness for large tubes.
- Ideal for large-scale production.
Applications: Energy, naval, heavy industry.
Learn more about the Heavy Duty Series
3. EB Series – Heavy Duty UD (Up-Down)
- Diameter: 6 to 220 mm.
- Up to 13 fully electric CNC axes.
- Vertical/horizontal movement on the positioner.
- Improved ergonomics for large productions.
Applications: Defense, aerospace, shipbuilding.
Learn more about the EB Heavy Duty UD Series
4. EB-RH Series — 360° Rotating Head
- Diameter: up to 83 mm.
- 11 electric CNC axes.
- Bending head with full radial rotation.
- Allows left and right bending in an automatic cycle.
Applications: Automotive, aerospace, HVAC.
Learn more about the EB-RH Series
5. EB-LR Series — Left/Right Direction
- Diameter: up to 32 mm.
- 8 CNC axes.
- Capacity for radii up to 1D.
- Ideal for parts with multiple curvatures.
Applications: Furniture, industrial components, technical ducts.
Learn more about the EB-LR Series
6. EB-CB Series — For Copper, Aluminum, and Stainless Steel
- Diameter: 4 to 22 mm.
- 6 to 7 CNC axes.
- Operates directly from coils.
- Integrates operations such as straightening, forming, bending, and cutting.
Applications: HVAC, refrigeration, household appliances.
Learn more about the EB-CB Series
7. ECO Series — Hybrid (Automatic and Semi-Automatic)
- Diameter: up to 92 mm.
- 3 CNC axes (angle, rotation, and distance).
- Combines electric and hydraulic drives.
- Intuitive touchscreen programming.
Applications: Agriculture, construction, shipbuilding.
Learn more about the ECO Series — Automatic
Learn more about the ECO Series — Semi-Automatic
Comparative Table of Tube Bending Machines
| Series | Type | Max. Diameter | Nº of Axis | Applications |
| EB | Electric CNC | 83 mm | 11 | Automotive, HVAC |
| EB HD | Electric CNC | 150 mm | 11 | Energy, shipbuilding |
| EB HD UD | Electric CNC | 220 mm | 13 | Defense, aerospace |
| EB-RH | Electric CNC | 83 mm | 11 | Automotive, HVAC |
| EB-LR | Electric CNC | 32 mm | 8 | Furniture, prototypes |
| EB-CB | Electric CNC | 22 mm | 6-7 | HVAC, refrigeration |
| ECO | Hybrid | 92 mm | 3 | Construction, agriculture |
Applications of Tube Bending Machines by Sector
Automotive Industry
- Exhaust systems.
- Chassis structures.
- Roll cages for competition.
Aerospace Sector
- Lightweight and resistant ducts.
- Complex tubular structures.
HVAC and Refrigeration
- Coils.
- Heat exchangers.
- Technical piping.
Construction and Energy
- Tubular profiles for metal structures.
- Supports for solar panels.
Metal Furniture
- Structures for chairs, tables, and shelves.
Frequently Asked Questions (FAQ) about Tube Bending Machines
1. What is a CNC tube bending machine?
It is computer-controlled equipment that allows metal tubes to be bent with precision, repeatability, and less material waste.
2. What is the difference between an electric and a hybrid bender?
- Electric: all axes are electrically driven (faster and more efficient).
- Hybrid: combines electric and hydraulic drives, ideal for applications that require extra force.
3. Can I integrate these machines into an automated line?
Yes, all VLB tube bending machines can be integrated into robotic cells and automatic loading/unloading systems.
4. How durable are these machines?
With proper maintenance, the service life can exceed 15 years of continuous production, maintaining the original precision.
5. Which industries use tube bending machines the most?
Automotive, aerospace, HVAC, construction, energy, and metal furniture.
6. Where can I find detailed technical information?
On the official VLB Group website: www.vlb-group.com
VLB Group tube bending machines are complete solutions for industries that demand innovation, precision, and continuous productivity.
Whether for high-volume production or highly complex parts, the EB, EB-HD, EB-HD-UD, and ECO series offer the ideal technology for every need.
Choosing the right machine not only increases your company’s competivity, but also ensures quality and consistency in every project.
Want to know more about all VLB-Group solutions?
See here – Tube and Sheet Metal Forming Machines: Innovation, Precision, and Productivity in Industry
Written by: Carlos Gonçalves
