Flanging Machine for Center-Hole-Free Dished Ends: Clean, Strong Edges for Every Tank Lid

A tank is only as good as its lids. Whether a cylindrical container holds water, gas, fuel or food, its top and bottom must be closed by a cover whose edge is formed exactly right, or the joint will never seal and weld cleanly. The SBFM Flanging Machine for Center-Hole-Free Dished Ends (BSMD) is built for this task. It bends the edge of dished or flat covers that close the top and bottom openings of pressurised or unpressurised, thin-walled or thick-walled cylindrical containers.

Quick Product Facts

  • Product: Flanging Machine for Center-Hole-Free Dished Ends
  • Product code: BSMD
  • Manufacturer: SBFM Machinery, Konya, Türkiye
  • Category: Sheet Metal Forming
  • Process: Edge flanging of dished and flat covers
  • Workpiece: Dished or flat covers without a center hole
  • Typical containers: Pressurised or unpressurised, thin or thick-walled cylindrical tanks

What Is a Dished End Flanging Machine?

A dished end is the curved lid at the top or bottom of a cylindrical tank. After the plate has been dished, its outer edge must be turned into a flange, a short, bent rim that lets the end fit and weld onto the tank shell. A flanging machine does this by pressing forming rolls against the edge while the lid turns, bending it to the required radius in a smooth, controlled way.

The BSMD handles covers that have no hole in the center. The middle of the lid stays solid, and the machine works only on the edge, which makes it ideal for closed tank ends.

Flat and Dished Covers on One Machine

The machine can flange both dished and flat covers, so a workshop does not need separate equipment for different lid styles. Hydraulic force moves the forming head and presses the rolls against the edge, which delivers an even flange from the first lid to the last. Because the edge is formed gradually, thinning stays low and cracks and folds are avoided, even on thin-walled lids. A uniform flange means a tight fit-up with the shell, less correction before welding and a stronger, leak-resistant finished tank.

Key Features and Benefits

  • Dished and flat covers flanged on the same machine
  • Center-hole-free workpieces with only the edge formed
  • Hydraulic forming force for smooth, repeatable flanges
  • Pressed, rolled edge that keeps thinning and defects low
  • Rigid, welded frame that keeps the forming head stable
  • Thin and thick walled containers supported within model capacity
  • Easy operation that helps operators learn quickly and work safely

Materials You Can Flange

The machine works with plate in carbon steel, stainless steel, aluminum and other formable metals. Maximum diameter and thickness depend on the model and on the material, and harder grades need more force and larger radii. Always confirm capacity for your cover diameter, thickness and material before ordering.

Applications

  • Heads for water, fuel and storage tanks
  • Lids for pressurised and unpressurised vessels
  • Boiler, heater and hot water tank ends
  • Gas cylinders, cannisters and drums
  • Silos, hoppers and process tanks
  • Food, chemical and HVAC equipment

Tips for Perfect Flanges

Good flanging begins with an accurate blank, because the flange can only be as even as the outline. Keep the plate and rolls clean of scale to protect the surface. Form the flange gradually in several passes instead of forcing the full radius at once, and check height and radius against a template. Allow for springback, the slight return of the metal after forming.

Part of a Complete Sheet Metal Forming Range

SBFM Machinery has built sheet metal forming machines in Konya since 1998. Alongside flanging machines, our range includes hydraulic dishing presses, plate bending machines, profile and pipe bending machines, polishing machines for dished heads and special corrugated and grooved rolls. A single partner can equip your workshop from shells to tank heads, rings and pipes.

Why Choose SBFM Machinery?

Machines are designed, cut, welded, machined, assembled and tested in our own facilities, and our quality policy rests on customer satisfaction. We believe we grow together with our customers, so we listen first and recommend the model that fits your work, not simply the largest one. Technical guidance and spare parts help keep your machine productive for years.

How to Choose the Right Machine

  • Cover diameter range and plate thickness
  • Dished covers, flat covers or both
  • Container type: pressurised or unpressurised
  • Control level and production volume
  • Available floor space and power supply

Maintenance for Long Service Life

Keep the forming rolls clean, check hydraulic oil level and filters, and inspect hoses and fittings for leaks. Lubricate bearings and guides as described in the manual and protect the machine from scale and chips. A simple preventive routine keeps flanging accurate and reliable for many years.

Frequently Asked Questions

What can the machine do? It bends the edge of dished and flat covers used to close the ends of cylindrical tanks.

Does the cover need a hole in the center? No. The machine is made for center-hole-free covers; only the edge is flanged.

How do I choose the capacity? Send us your cover diameter, material and thickness, and our engineers will recommend the right model.

Request a Quote on MachineWorld.biz

Ready to flange with confidence? Contact us at +90 542 479 69 00 or export@MachineWorld.biz, or explore SBFM machines on MachineWorld.biz and request your quote today.

Precise flanging. Reliable production. Request a quote today.

It bends edge of dished or flat covers which are used  to close top and bottom holes of  pressurised or unpressurised, thin or thick walled, cylindirical cannisters.