Hydraulic Sheet Metal Folder

Hydraulic Sheet Metal Folder
Hydraulic Sheet Metal Folder

We manufacture a Hydraulic Sheet Metal Folder to bend sheet metal edges. Hydraulic Sheet Metal Folder is used in metalworking industries

A hydraulic sheet metal folder, also known as a folding machine, is a powerful and versatile machine used to create precise folds and bends in sheet metal using hydraulic pressure. These machines are widely used in the metal fabrication industry due to their ability to handle a wide range of sheet metal thicknesses and produce consistent results.

Key Components of a Hydraulic Sheet Metal Folder

A hydraulic sheet metal folder consists of several essential components that work together to achieve precise and efficient folding operations:

  1. Frame: The frame provides a sturdy base for the machine and supports the folding mechanism. It is typically made from heavy-duty steel or cast iron to withstand the immense forces involved in folding sheet metal.
  2. Hydraulic System: The hydraulic system is the heart of the machine, generating and supplying pressurized hydraulic fluid to the folding mechanism. It consists of a hydraulic pump, hoses, valves, and a hydraulic cylinder. The hydraulic cylinder applies high-pressure hydraulic fluid to the ram, providing the force required to fold the sheet metal.
  3. Ram: The ram is a movable component that applies downward force onto the sheet metal, forcing it against the folding beam. It is connected to the hydraulic cylinder and guided by rails to ensure precise movement and alignment during the folding process.
  4. Folding Beam: The folding beam is a stationary component that provides support and guidance for the sheet metal during folding. It is typically made from hardened steel or tool steel to withstand the abrasion and forces involved in bending.
  5. Wiping Bar: The wiping bar applies pressure along the folding line, ensuring a smooth and consistent fold without distortion or buckling. It helps to prevent gaps or uneven folds.
  6. Back Gauge: The back gauge, also known as the depth stop, controls the distance between the rear edge of the sheet metal and the folding line. It ensures consistent folding positions and prevents the sheet metal from slipping during the folding process, maintaining accuracy and consistency.
  7. Controls: The control panel allows the operator to set and monitor the folding process. Modern folding machines often feature advanced computer controls for precise and automated operation. These controls enable operators to set folding angles, folding speeds, and other parameters, ensuring consistent and repeatable results.

Common Applications of Hydraulic Sheet Metal Folders

Hydraulic sheet metal folders are widely used for a variety of applications in the metal fabrication industry:

  1. Creating folds and bends in sheet metal for various products: These components include enclosures, brackets, ducts, structural components, and various other sheet metal parts.
  2. Manufacturing metal parts for appliances: Hydraulic folders are used to create sheet metal components for appliances like refrigerators, washing machines, and dishwashers.
  3. Producing automotive components: These components include car body panels, brackets, frames, and other sheet metal parts used in automotive manufacturing.
  4. Creating custom-shaped sheet metal components: Hydraulic folders can bend sheet metal into unique and custom shapes for specific applications.
  5. Prototyping sheet metal designs: These machines are used to create prototypes of sheet metal components to evaluate form, fit, and functionality before full-scale production.
  6. High-volume production of sheet metal components: Hydraulic folders are designed for high-volume production, enabling efficient manufacturing of large quantities of sheet metal components for various industries.

Benefits of Hydraulic Sheet Metal Folders

Hydraulic sheet metal folders offer several advantages over other folding methods, making them a popular choice in metal fabrication:

  1. High Folding Capacity: Hydraulic folders can handle thicker sheet metal than manual or pneumatic folding machines, making them suitable for heavy-duty applications and folding thicker materials.
  2. Precision Folding: Hydraulic folders provide precise control over the folding angle, ensuring consistent and accurate folds, even for complex shapes. The hydraulic system, wiping bar, and back gauge contribute to precise folding results.
  3. High Production Rates: Hydraulic folders are designed for high-volume production, enabling efficient manufacturing of large quantities of sheet metal components. Their automation capabilities further enhance production efficiency.
  4. Automation and Efficiency: Modern hydraulic folders can be automated, reducing labor costs and increasing production efficiency. Automated controls allow for repetitive and consistent folding operations, reducing human error and improving productivity.
  5. Durability and Reliability: Hydraulic folders are built to withstand demanding industrial environments and provide reliable performance over extended periods. Their robust construction and components ensure long-lasting operation.

Safety Precautions for Operating Hydraulic Sheet Metal Folders

When operating hydraulic sheet metal folders, it is crucial to adhere to strict safety protocols to prevent injuries and accidents:

  1. Thorough Training: Operators must receive comprehensive training on the specific machine model, its operation, and safety procedures.
  2. Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety glasses, gloves, and hearing protection, to protect from flying debris, sharp edges, and noise.

Sheet Metal Folder

Sheet metal folding is a fundamental metalworking process that involves shaping sheet metal into various forms and angles using specialized machines or hand tools. It is a versatile technique used in various industries to create a wide range of products, from enclosures and brackets to architectural components and automotive parts.

Types of Sheet Metal Folding

  1. Manual Folding: This traditional method involves using hand tools, such as bending bars and hammers, to create simple bends in sheet metal. It is a cost-effective option for small-scale production or prototyping.
  2. Pneumatic Folding: This method employs compressed air to drive a hydraulic cylinder, which in turn applies force to a bending die or punch, bending the sheet metal into the desired shape. It is more efficient than manual folding and can handle thicker sheet metal.
  3. Hydraulic Folding: This method utilizes high-pressure hydraulic fluid to power a ram or punch, providing greater force and control over the bending process. It is suitable for bending thicker sheet metal and complex shapes.
  4. CNC Folding: This automated method utilizes computer numerical control (CNC) to precisely control the bending parameters, including the bending angle, speed, and force. It is used for high-volume production of intricate sheet metal components.

Common Sheet Metal Bending Applications

  1. Creating Enclosures and Brackets: Sheet metal folding is widely used to create enclosures and brackets for various applications, such as electrical enclosures, housings, and structural components.
  2. Manufacturing HVAC Components: Folding is essential in manufacturing HVAC components like ductwork, diffusers, and air conditioning units.
  3. Producing Automotive Parts: Sheet metal folding is a crucial process in producing various automotive parts, including body panels, bumpers, and structural components.
  4. Creating Home Appliance Components: Folding is used to manufacture various components for home appliances, such as refrigerators, washing machines, and dishwashers.
  5. Fabricating Architectural Elements: Sheet metal folding is employed to create architectural elements such as railings, facades, and signage.
  6. Prototyping Sheet Metal Designs: Folding is often used to create prototypes of sheet metal components for evaluation and refinement before full-scale production.

Factors Affecting Sheet Metal Folding

  1. Sheet Metal Material: The type and thickness of the sheet metal significantly impact the folding process. Thicker materials require higher forces and may require specialized tools or machines.
  2. Bend Angle: The desired bend angle determines the tooling and process parameters. Smaller bend angles require lower forces and may be suitable for manual or pneumatic folding, while larger angles may necessitate hydraulic or CNC folding.
  3. Bend Location: The location of the bend on the sheet metal can influence the folding process. Bends near the edges of the sheet metal may require additional support to prevent cracking or tearing.
  4. Corner Relief: Corner relief is often incorporated into sheet metal designs to prevent cracking or tearing during folding. This involves cutting small notches or slots at the corners of the bend line.

Safety Precautions for Sheet Metal Folding

When operating sheet metal folding machines or using hand tools, it is crucial to follow strict safety protocols to prevent injuries and accidents:

  1. Proper Training: Operators must receive comprehensive training on the specific machine or tool, its operation, and safety procedures.
  2. Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety glasses, gloves, and hearing protection, to protect from flying debris, sharp edges, and noise.
  3. Secure Work Area: Ensure the work area is free of obstacles and potential hazards. Secure any loose objects or hanging wires.
  4. Secure Sheet Metal: Properly secure the sheet metal to the machine or workpiece to prevent movement during the bending process.
  5. Maintain Proper Forming Angles: Do not exceed the recommended bending angles for the specific material and tooling.
  6. Avoid Kinking or Over Bending: Avoid kinking or over bending the sheet metal, as this can lead to cracks, tears, or deformations.
  7. Cleanliness and Lubrication: Keep the machine and tools clean and lubricated to ensure smooth operation and prevent damage to the sheet metal.
  8. Emergency Stop Procedures: Familiarize yourself with the emergency stop procedures and be prepared to activate them in case of any unexpected malfunctions or hazards.
  9. Regular Maintenance: Follow the manufacturer’s recommended maintenance schedule to ensure the machine and tooling are functioning correctly and safely.

By adhering to these safety precautions, individuals can safely operate sheet metal folding machines and hand tools to produce high-quality sheet metal components for various applications.

EMS Metalworking Machinery

We design, manufacture and assembly metalworking machinery such as:

  • Hydraulic transfer press
  • Glass mosaic press
  • Hydraulic deep drawing press
  • Casting press
  • Hydraulic cold forming press
  • Hydroforming press
  • Composite press
  • Silicone rubber moulding press
  • Brake pad press
  • Melamine press
  • SMC & BMC Press
  • Labrotaroy press
  • Edge cutting trimming machine
  • Edge curling machine
  • Trimming beading machine
  • Trimming joggling machine
  • Cookware production line
  • Pipe bending machine
  • Profile bending machine
  • Bandsaw for metal
  • Cylindrical welding machine
  • Horizontal pres and cookware
  • Kitchenware, hotelware
  • Bakeware and cuttlery production machinery

as a complete line as well as an individual machine such as:

  • Edge cutting trimming beading machines
  • Polishing and grinding machines for pot and pans
  • Hydraulic drawing presses
  • Circle blanking machines
  • Riveting machine
  • Hole punching machines
  • Press feeding machine

You can check our machinery at work at: EMS Metalworking Machinery – YouTube


  • Beading and ribbing
  • Flanging
  • Trimming
  • Curling
  • Lock-seaming
  • Ribbing
  • Flange-punching