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Category: Metal Processing
Product Code: BSM
HS Code:

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BSM series flanging machine for curved and non-curved lids used to close cylindrical metal containers

A dished head is only as good as its final edge. After a flat blank has been pressed into a dome, the knuckle radius and the straight flange must still be formed so that the head fits the shell perfectly and welds without gaps. This finishing stage is the job of the flanging machine. SBFM Machinery’s Flanging Machines, product code BSM, are designed for exactly this task: bending the end parts of curved or non-curved lids used to close the bottoms and ceilings of pressurised or non-pressurised, thin or thick walled, cylindrical metal containers.

What Is a Flanging Machine?

Flanging takes a pressed or flat plate and forms it to the size and shape required by the project specification. Industry sources explain that the process creates the knuckle radius and the straight flange of the head, which gives the cold-formed head its final shape. A well-made flange also saves time during assembly, because accurate edges mean good fit-up when the head is welded to the container shell.

Dishing and Flanging in One Solution

SBFM presents its machine as a Dishing and Flanging Bending Machine, a perfect solution for bending lid ends in both curved and non-curved forms. This flexibility is valuable for workshops that produce a mix of products, from shallow flat-type covers to deeply domed tank heads. The manufacturer also describes the machine as a Perforated Camber Bending and Flanging Machine that offers precise and reliable results while increasing production efficiency. In practice, it means one dependable machine can handle both the cambering and the edge-forming stages of lid production.

How the Flanging Process Works

The head is clamped on the machine so that it can rotate while forming rolls work along its edge. A knuckle roll and a flanging roll gradually bend the rim of the plate into the required radius and flange height. Industry sources note that a strong machine can complete the flange in a minimum number of passes, which limits thinning of the material, and that CNC gap control helps even less experienced operators achieve consistent results. Heads can be flanged with or without a central hole, and some machines include machining arms to chamfer the edge or adjust the head height.

Engineering Visible in the Product Photo

The product photograph shows a compact, light-grey machine on a long, sturdy base frame. A large black dished head rests on the lower table, secured around its centre with a yellow-and-black marked support. Above it, the upper structure carries the forming mechanism, while an operator control panel with a display screen and a signal light sits at the front. Next to the machine, a blue cabinet houses the power equipment, with cables and hoses routed neatly to the machine body. The layout suggests a self-contained working station that is simple to install, easy to operate and clearly organised for safety.

Key Features and Benefits

• Dedicated flanging for curved and non-curved lids and container ends
• Suitable for thin and thick walled, pressurised and non-pressurised applications
• Operator control panel with display screen for convenient machine control
• Sturdy base frame for stable, vibration-resistant operation
• Precise, repeatable results that improve production efficiency
• High quality, durable construction for long service life
• Compact working station layout with the power unit beside the machine

Why Accurate Flanging Matters

Every dished head becomes part of a welded structure, and many of these structures carry pressure, fuel, water or food products. An uneven flange or an inaccurate knuckle radius can cause welding problems, stress concentrations and costly rework. Accurate flanging protects the strength of the container, shortens assembly time and gives customers a cleaner, more professional finished product.

Working Together with the SBFM Dishing Press

Flanging machines are most productive when they are paired with a dishing press and a manipulator. The press forms the crown of the head, and the flanging machine then finishes the knuckle and the edge. Choosing both machines from the same manufacturer simplifies planning, spare parts and service, and it helps the whole line run smoothly from blank to finished head.

Applications and Industries

• Pressure vessels and air receivers
• Boilers, heat exchangers and hot water tanks
• Fuel, water and chemical tankers
• Storage tanks, silos and LPG tanks
• Food, dairy and brewery tanks
• Agricultural and greenhouse water tanks

Choosing the Right Flanging Machine

Begin with the material, plate thickness and the largest head diameter you plan to produce. Then consider whether your heads have central holes, which head shapes you need and how many parts you must finish each day. Ask about control options, tooling and safety features, and share your production plan with the manufacturer so the machine can be matched to your real workload.

About SBFM Machinery

SBFM Machinery focuses on sheet bending and flanging machines for tank, boiler and vessel production. Its promise is simple: high quality, durable machines that make your production processes easier.

Request a Quote

Looking for a reliable flanging machine for your workshop? Share your material, plate thickness, head diameter and daily output, and the SBFM team will help you choose the right BSM configuration. Call +90 (542) 479 6900 or use the Visit The Company button to contact SBFM Machinery today.

Dishing and Flanging Bending Machine is the perfect solution for bending the end parts of curved or non-curved lids used in the industry to close the bottoms and ceilings of pressurised or non-pressurised, thin or thick walled, cylindrical metal containers.

SBFM Machine we facilitate your production processes with our high quality and durable machines. 

Perforated Camber Bending and Flanging Machine offers precise and reliable results, increasing your production efficiency.