Flanging Machines (Without Center Hole)
Category: Metal Processing
Product Code: BSMD
HS Code:
Flanging Machine Without Center Hole (BSMD): Precision Flanging for Solid Dished Ends and Flat Covers
Every pressure tank, boiler and silo is only as strong as its heads. When those heads are solid discs with no center opening, you need a flanging machine built specifically for the job. The BSMD flanging machine, part of the Bison series by SBFM Machinery, spins and bends the edge of flat or dished blanks to the exact radius you specify, producing clean, weld-ready flanges with outstanding repeatability.
Quick Product Facts
- Product: Flanging machine for dished ends without center hole
- Product code: BSMD (Bison series)
- Manufacturer: SBFM Machinery, Konya, Türkiye
- Models: BISON F3012 up to BISON F5050
- Plate thickness: up to 12–50 mm in carbon steel, 8–32 mm in stainless steel (AISI 304/316)
- Plate diameter: from 800 mm up to 5000 mm
- Flange radius: from 25 mm up to 800 mm
- Drive power: from 30 kW up to 120 kW
What Is a Flanging Machine Without Center Hole?
Dished ends are formed in two stages. A dishing press first gives the blank its crown shape, and a flanging machine then forms the knuckle and the straight flange around the edge. Many machines need a hole in the middle of the blank to hold it in position. A flanging machine without center hole, by contrast, grips the blank securely without drilling or cutting anything, so the head stays solid, intact and ready for use in sealed vessels.
How the BSMD Works
The blank is positioned and clamped, then rotated while hydraulic force presses a forming roll against its edge. The edge is spun and bent over a die with the required radius until the flange reaches its final angle. Because the whole circumference is formed gradually and evenly, the result is a smooth knuckle, accurate flange height and consistent diameters, with far less rework than manual methods.
Key Features and Benefits
- Adjustable for different plate thicknesses, so one machine covers a wide range of jobs
- Programmable flanging angle and curl from the control panel for repeatable results
- Hydraulic or mechanical drive options to match your production needs
- CNC-controlled versions for the highest accuracy and reduced operator dependence
- Automatic feeding and changing systems that raise processing efficiency
- Integrated safety measures that protect operators during every cycle
- Robust welded structure designed for long service life in industrial plants
Model Range and Technical Capacity
The Bison series is built to cover everything from light workshop heads to heavy industrial vessels. Selected models include:
- BISON F3012: up to 12 mm, plates Ø800–3000 mm, 30 kW
- BISON F3020: up to 20 mm, plates Ø1000–3000 mm, 45 kW
- BISON F5025: up to 25 mm, plates Ø1200–5000 mm, 55 kW
- BISON F5040: up to 40 mm, plates Ø1500–5000 mm, 90 kW
- BISON F5050: up to 50 mm, plates Ø1700–5000 mm, 120 kW
Capacities are calculated for steel of 24 kg/mm² grade, and machine dimensions are approximate, so confirm details for your own material before ordering.
Industries and Applications
These machines are developed for the needs of pressure tanks, boilers, food silos, energy plants, petrochemical equipment, aerospace and shipyard applications. Typical products include:
- LPG and LNG tank heads
- Fuel oil and liquid fuel tanks
- Food and beverage processing vessels
- Autoclaves and industrial reactors
- Boiler and pressure vessel ends
Why Choose a BSMD Flanging Machine?
The right flanging machine protects both quality and profit. Precisely formed edges mean tighter welds, fewer leaks and less grinding. A solid head with no center hole keeps its full strength, which matters for pressure-rated equipment. Repeatable control reduces scrap, and a wide capacity range lets one machine serve many customers and product lines. For tank head manufacturers, that adds up to faster deliveries and a stronger reputation.
Designed, Built and Tested for Reliability
Quality begins with engineering. The machines are designed in 3D CAD with structural analysis, cut on CNC plasma equipment, welded, machined and assembled in-house. Before delivery, every machine is tested: the electrical panel and valves first, then piston movements and hydraulic leakage, and finally a trial run with real material to confirm flawless operation.
How to Choose the Right Model
- Maximum plate thickness and material, including stainless steel
- Largest and smallest plate diameters you will process
- Required flange radius and angle
- Control level, from standard to CNC with automatic feeding
- Daily production volume and available floor space
Maintenance and Support
Regular checks of hydraulic oil, filters, hoses, forming rolls and the clamping system keep a flanging machine accurate for years. A simple preventive maintenance plan reduces unplanned stops and protects flange quality. When you request your quote, ask about spare parts, commissioning and technical support so your line is ready from the first day.
Frequently Asked Questions
Can the machine flange stainless steel? Yes. Each model lists a separate capacity for stainless steel grades such as AISI 304 and 316.
Do I need a dishing press as well? Usually yes. A dishing press forms the crown, and the flanging machine completes the head, so the two are often paired in one line.
Can I get a quote for a specific size? Absolutely. Send your plate diameter, thickness and material, and we will recommend the right model.
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Bombe edge bending machine (Without holes) is a machine that performs the bending process of its edges without drilling holes into plates or plates. This machine shapes the edges of metal sheets to provide the desired slope, angle or bend. It is usually developed in the metal processing industry and in accordance with various industrial products.