Three Roller Pipe Bending Machine

A three-roller pipe bending machine is a specialized type of section bending machine designed to bend pipes, tubes, and other profiles using three rollers to apply pressure. This type of machine is commonly used in industries like construction, automotive, shipbuilding, and metal fabrication, where precise and smooth curves are required in pipes or profiles.

Key Components:

Three Rollers:

• Top Roller: This is usually the adjustable roller that moves vertically (up and down) to control the bend’s radius.
• Bottom Rollers: These are fixed and rotate the pipe or profile through the machine while applying bending force.
• Electric or Hydraulic Power System: The machine can be powered by an electric motor or hydraulic system to move the rollers and provide the force needed to bend the pipe. Frame/Structure: A heavy-duty steel frame that holds the rollers in place and supports the machine during operation.
• Control Panel: Allows the operator to adjust the roller positions, bending speed, and pressure. Guide Rollers: Some machines are equipped with side guide rollers to help maintain the shape of the profile and ensure the bend is consistent.

Types of Three-Roller Pipe Bending Machines:

• Manual: These machines are operated by hand, typically for small-scale or light-duty applications.
• Electric: Powered by an electric motor, these machines are more powerful and are used for larger pipes and more frequent bending tasks.
• Hydraulic: These use hydraulic power to move the top roller and provide force, suitable for bending larger diameter pipes or thicker materials.
• CNC: Computer-controlled versions that allow for precision bending and automation, often used in industrial applications where high accuracy and repeatability are needed.

Working Principle:

• The pipe or profile is placed between the three rollers.
• The two lower rollers rotate the pipe while the upper roller applies pressure downward to bend the pipe into a curve or arc.
• By adjusting the position of the top roller, the operator can control the tightness of the bend.
• The machine can produce different radii and angles depending on the settings of the rollers.

Bending Process:

• Loading the Pipe: The pipe or tube is placed between the three rollers, usually with the outer two rollers positioned at the desired spacing based on the pipe size.
• Adjusting the Rollers: The top roller is adjusted downward to begin bending the pipe while the two lower rollers rotate the pipe forward.
• Bending: As the pipe moves through the machine, the top roller continues to press the pipe, gradually forming the bend.
• Completing the Bend: The process continues until the desired angle or curve radius is achieved.

Applications:

• Construction: Bending structural pipes for building frameworks, handrails, and curved beams., roll bars, and other curved components.
• Shipbuilding: Bending pipes and sections used in ship hulls and frames.
• Furniture: Used to form curved pipes and tubes for chairs, tables, and other metal furniture pieces.
• Aerospace: Bending precision pipes and profiles for aircraft parts.