Dished Head Polishing Machine: Give Tank Heads a Clean, Uniform Finish Inside and Out, from Ø 500 to Ø 5000 mm

A dished head leaves the press and the flanging machine with scale, marks and a rough, uneven surface. For a tank that holds food, drink, chemicals or water, that surface is not good enough. It must be smooth to look right, to resist corrosion and, above all, to be cleaned easily. The SBFM Dished Head Polishing Machine (BPM) is built to do this job. It polishes the inside and outside of the dished covers that close the top and bottom openings of pressurized or unpressurized, thin or thick-walled, cylindrical containers.

Quick Product Facts

• Product: Dished Head Polishing Machine
• Product code: BPM
• Manufacturer: SBFM Machinery, Konya, Türkiye
• Category: Sheet Metal Forming
• Process: Polishing of the inside and outside of dished covers
• Head diameter: Ø 500 mm up to Ø 5000 mm
• Working depth: Up to 900 mm
• Accuracy: 0.25 µm, as stated in the product image

What Is a Dished Head Polishing Machine?

A dished head polishing machine finishes the surface of a curved tank cover. The head sits on a rotating table while a polishing arm, carried on a tall column, moves over the surface and follows its curve. Because the head turns and the tool travels along the profile, every area from the center to the knuckle receives the same treatment.

Polishing removes marks left by forming, welding and handling, and leaves a uniform surface. A machine makes it faster, more consistent and far less tiring for operators.

A Wide Range of Sizes and a Fine, Uniform Finish

The machine handles dished heads from Ø 500 mm up to Ø 5000 mm, so one machine can finish small process tanks and large storage tank heads alike. Its working depth reaches 900 mm, which covers deep dished profiles. The stated accuracy of 0.25 µm points to a very fine, even finish, which matters wherever a surface touches products that must stay clean. A smooth surface gives dirt and residues less to cling to, makes cleaning easier and helps stainless steel keep its natural resistance to corrosion.

Key Features and Benefits

• Inside and outside polishing of dished covers on one machine
• Ø 500 to Ø 5000 mm range for small and very large heads
• Working depth up to 900 mm for deep dished profiles
• Fine accuracy of 0.25 µm for a smooth, uniform surface
• Rotating table and column-mounted arm that follow the shape of the head
• Consistent results from the first head to the last
• Less manual work for safer, faster production

Materials You Can Polish

The machine is used mainly on stainless steel heads, and it also suits carbon steel, aluminum and other metals that need a smooth finish. The grade of the surface depends on the material, the abrasives you choose and the number of passes. Always confirm the finish level you need for your own material and application.

Applications

• Food, dairy and beverage tank heads
• Pharmaceutical and chemical process vessels
• Pressurized and unpressurized storage tanks
• Boiler, heater and hot water tank ends
• Water treatment and brewing equipment
• Decorative and architectural tank covers

Tips for a Perfect Finish

Prepare the head well before polishing. Remove weld spatter and deep marks first, then move to finer abrasives step by step instead of jumping from coarse to fine. Keep the pressure even and let the tool follow the curve without stopping in one place, because dwelling can overheat or mark the surface.

Part of a Complete Sheet Metal Forming Range

SBFM Machinery has built sheet metal forming machines in Konya since 1998. Our range covers the complete path of a tank head: hydraulic dishing presses with and without manipulators, flanging machines, and the polishing machines that finish them. A single partner can equip your workshop from raw plate to finished, polished heads.

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

• Head diameter range and working depth you need
• Material and the surface finish you require
• Whether you polish inside, outside or both
• Production volume and operator skill level
• Available floor space, ceiling height and power supply

Maintenance for Long Service Life

Keep the table, column and arm free of polishing dust and residue, and check the moving parts, bearings and guides regularly. A simple preventive routine keeps polishing consistent and reliable for many years.

Frequently Asked Questions

What head sizes can it polish? Dished heads from Ø 500 mm up to Ø 5000 mm, with a working depth of up to 900 mm.

Does it polish inside and outside? Yes. It is made to polish both the inside and outside of dished covers.

How do I choose the right model? Send us your head diameter, depth, material and required finish, and our engineers will recommend the right model.

Request a Quote on MachineWorld.biz

Ready to polish 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 polishing. Reliable production. Request a quote today.

It is used to polish inside and outside of dished covers that are used to close top and bottom holes of pressurized-unpressurized, thin-thick walled, cylindirical canisters.