Polishing Machines for Dished Ends: Finish Large Tank Heads from Ø 500 mm up to Ø 5000 mm

Forming a dished end is only half of the job. A head leaving the press still shows weld marks, scale and tool traces. SBFM polishing machines for dished ends are built for this finishing step. The product image shows a very wide range: Ø 500 mm up to Ø 5000 mm, so one polishing line can serve small vessel heads and very large tank heads.

Quick Product Facts

• Product: Polishing Machines for Dished Ends
• Manufacturer: SBFM Machinery, Konya, Türkiye
• Category: Other
• Head diameter range: Ø 500 mm to Ø 5000 mm (as stated in the product image)
• Working depth: up to 900 mm (as stated in the product image)
• Accuracy: 0.25 µm (as stated in the product image; confirm exact meaning with the manufacturer)
• Layout: Rotating table with a column-mounted arm, as visible in the photo

What Are Polishing Machines for Dished Ends?

A dished end, also called a tank head or dished head, closes the ends of pressure vessels, storage tanks, silos and boilers. Polishing machines for dished ends remove marks, blend the crown and knuckle areas and give the metal a uniform, even finish.

Doing this by hand on a large head is slow and hard to repeat. A dedicated machine holds the head on a rotating table while a polishing arm works the surface, giving a more consistent finish and less physical load on the operator.

How the Machine in the Photo Works

The photograph shows a dished end resting on a round rotating table, with a tall white column and a long swinging arm beside it. Based on this layout, the head turns while the arm carries the polishing tool across the surface, so the crown and knuckle can be reached without moving the heavy head by hand. The printed values in the image give a diameter range of Ø 500–5000 mm, a working depth of up to 900 mm and an accuracy of 0.25 µm. Please confirm with SBFM what the accuracy figure refers to; it is most likely a surface-finish value.

Key Features and Benefits

• Wide diameter range; one machine covers heads from Ø 500 mm up to Ø 5000 mm, as stated in the image.
• Deep working capacity; a working depth of up to 900 mm suits deep heads.
• Rotating table; the head turns under the tool, which supports an even finish around the full circumference.
• Column-and-arm design; the long arm reaches across the head so one setup can finish a large area.
• Fine finish capability; the stated 0.25 µm figure points to a high-quality surface target.
• Built in Konya; designed, machined, assembled and tested by SBFM.

Applications

• Pressure vessel and boiler heads with a clean outer surface.
• Stainless steel tank heads for food, dairy and beverage production.
• Pharmaceutical and chemical vessels where cleanability matters.
• Large storage tank and silo heads in carbon steel or stainless steel.
• Workshops finishing heads before delivery.

Tips for a Better Polished Finish

Prepare the head before polishing. Remove weld spatter and heavy scale first, then work through coarse to fine abrasives so each step removes the marks of the one before it. A lower roughness value (Ra) means a smoother, easier-to-clean surface. Keep the head centred and the pressure steady.

Part of a Complete Sheet Metal Forming Range

SBFM Machinery has built sheet metal forming machines in Konya since 1998. Alongside polishing machines for dished ends, our range includes plate bending machines, hydraulic dishing presses, flanging machines, profile and pipe bending machines, corrugated furnace machines and special corrugated and grooved rolls.

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

• Define the smallest and largest head diameters and depths you will polish.
• Note the material: carbon or stainless steel.
• Decide the surface finish your customers expect and discuss it with us.
• Plan floor space and crane access.
• Ask about abrasives and spare parts for your daily volume.

Maintenance for Long Service Life

Keep the rotating table and arm joints clean and lubricated as the manual advises. Replace worn abrasives early. Remove polishing dust from guides and cabinets and check the column base fasteners. A short daily check saves long stops.

Frequently Asked Questions

What head sizes can it polish? The product image states Ø 500 mm up to Ø 5000 mm with a working depth of up to 900 mm. Please confirm your exact head dimensions with SBFM.

What does 0.25 µm mean? It is printed as accuracy in the image. It most likely describes the achievable surface finish, but you should confirm its exact meaning with the manufacturer.

Can it polish stainless steel heads? Dished end polishing is commonly used for stainless steel. Ask SBFM about your material, thickness and required finish before ordering.

Request a Quote on MachineWorld.biz

Need a polishing solution for your dished ends? Contact us at +90 542 479 69 00 or export@MachineWorld.biz, or explore SBFM machines on MachineWorld.biz and request your quote today.

Smooth heads. Clean finish. Request a quote today.

Polishing Machines for Dished End by SBFM