Spiral Bending Machines

What are spiral bending machines?

Spiral bending machines are specialized systems designed to form rebar bars into spirals, rings, circles, or semicircles with high precision. They are widely used in bridge, tunnel and concrete construction where strength, accuracy and repeatability are critical. With an adjustable winding pitch and compatibility with multiple diameters, they deliver excellent flexibility and throughput.

Working principle and control

A bending mechanism rotates the bar around a mandrel/template to create the required spiral. Control can be manual, semi-automatic or automatic. Advanced models feature a digital control panel to program diameter, number of turns and pitch.

Applications

Used in infrastructure projects and rebar shops for retaining walls, columns, and structural elements for bridges and tunnels requiring spiral reinforcement for added strength.

Key advantages

• Precision – accurate diameters and angles, reliable repeatability.
• Flexibility – handles various diameters and steel grades.
• Adjustable pitch – set ring spacing to project needs.
• High productivity – fast output for large volumes.
• Robust build – suits heavy-duty operation.
• Easy maintenance – convenient access to core components.

Models and capacities

Available in electromechanical and hydraulic versions, with capacity up to Ø50 mm rebar and minimum internal spiral diameter starting from Ø200–220 mm. Selection depends on steel strength, target diameter and throughput.

Safety and best practices

Operate by trained staff with PPE. During setup or service, keep the machine disconnected from power. Preventive maintenance ensures safe, long-life operation.

Why choose a professional spiral bender?

Professional spiral benders deliver accuracy, speed and long-term reliability, boosting efficiency and quality while reducing labor costs across projects.