Forming & Tube Bending
BMB
by Akyapak
Hydraulic flanging machines for forming tank heads, pressure vessel ends, and dished components from 20" to 33' diameter
20"–33' (500 mm–10 m)
Working diameter range
14 ga–2" (1.9–50 mm)
Thickness range (cold)
Up to 4" (100 mm)
Thickness range (hot)
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Ideal For
- Tank and vessel fabricators who flange dished heads in-house and need low-vibration precision across a wide diameter range
- Shops working with both thin-gauge and heavy-plate material that require proportional hydraulic control for consistent edge quality
- Manufacturers pairing a BMB flanging machine with a BMB-P dishing press for a complete in-house head forming line
Working diameter range
20"–33' (500 mm–10 m)
Thickness range (cold)
14 ga–2" (1.9–50 mm)
Thickness range (hot)
Up to 4" (100 mm)
Frame construction
High-alloy steel, electro-welded, stress relieved
Key Features
BMB Features
Standard features that set this machine apart in demanding manufacturing environments.
Precision & Performance
- Both upper and lower head holders driven independently by hydraulic motors and cylinders for precise clamping and rotation control
- Radial-piston hydraulic motor drives the knuckle roll for high-speed rotation with consistent torque throughout each flanging pass
- Proportional hydraulic valves provide accurate pressure and speed control during flanging for consistent edge profiles
Ease of Operation
- Built-in overload protection prevents damage from wrong settings — the hydraulic system stops automatically if parameters are exceeded
- Centralised lubrication system via hand pump simplifies routine maintenance across all hydraulic and mechanical points
- User-friendly controls allow operators without extensive forming experience to achieve accurate, repeatable flanging results
Cutting Capability
- Flanging roll driven by three hydraulic cylinders for simultaneous vertical and horizontal movement between the main frame bodies
- Lower supporting rolls powered by hydraulic cylinders support the head during flanging and adjust to different blank diameters
Built-In Extras
- Electro-welded, stress-relieved high-alloy steel frame engineered for lowest vibration during flanging — extending component life and reducing surface roughness
- Heat-treated special-steel dies produce clean flanges on steel, stainless steel, and mild steel blanks with or without centre holes
Gallery
BMB in Detail
Full Specifications
Akyapak BMB Flanging Machine Technical Details
Complete specifications, standard features, and optional upgrades.
- Working diameter range
- 20"–33' (500 mm–10 m)
- Thickness range (cold)
- 14 ga–2" (1.9–50 mm)
- Thickness range (hot)
- Up to 4" (100 mm)
- Frame construction
- High-alloy steel, electro-welded, stress relieved
- Head holder drive
- Hydraulic motors + cylinders (upper and lower)
- Knuckle roll drive
- Radial-piston hydraulic motor
- Flanging roll drive
- 3 hydraulic cylinders (vertical + horizontal)
- Die material
- Special steel, heat-treated
- Hydraulic control
- Proportional valves for accurate flanging
- Lubrication
- Centralised hand-pump system
- Overload protection
- Hydraulic system with wrong-setting protection
| Working diameter range | 20"–33' (500 mm–10 m) |
| Thickness range (cold) | 14 ga–2" (1.9–50 mm) |
| Thickness range (hot) | Up to 4" (100 mm) |
| Frame construction | High-alloy steel, electro-welded, stress relieved |
| Head holder drive | Hydraulic motors + cylinders (upper and lower) |
| Knuckle roll drive | Radial-piston hydraulic motor |
| Flanging roll drive | 3 hydraulic cylinders (vertical + horizontal) |
| Die material | Special steel, heat-treated |
| Hydraulic control | Proportional valves for accurate flanging |
| Lubrication | Centralised hand-pump system |
| Overload protection | Hydraulic system with wrong-setting protection |
- Electro-welded, stress-relieved high-alloy steel frame engineered for lowest vibration during flanging — extending component life and reducing surface roughness
- Both upper and lower head holders driven independently by hydraulic motors and cylinders for precise clamping and rotation control
- Radial-piston hydraulic motor drives the knuckle roll for high-speed rotation with consistent torque throughout each flanging pass
- Flanging roll driven by three hydraulic cylinders for simultaneous vertical and horizontal movement between the main frame bodies
- Proportional hydraulic valves provide accurate pressure and speed control during flanging for consistent edge profiles
- Built-in overload protection prevents damage from wrong settings — the hydraulic system stops automatically if parameters are exceeded
- Lower supporting rolls powered by hydraulic cylinders support the head during flanging and adjust to different blank diameters
- Heat-treated special-steel dies produce clean flanges on steel, stainless steel, and mild steel blanks with or without centre holes
- Centralised lubrication system via hand pump simplifies routine maintenance across all hydraulic and mechanical points
- User-friendly controls allow operators without extensive forming experience to achieve accurate, repeatable flanging results
- Automatic flanging function for reduced cycle time
- Custom die sets for non-standard flange profiles
- Hot-forming tooling packages for thick-plate applications
- Extended diameter tooling
- Pressure vessel flanged head production for ASME and PED code work
- Storage tank end forming for oil, gas, chemical, and water industries
- Boiler drum and heat exchanger head flanging
- Shipbuilding and naval vessel component fabrication
- Food, dairy, and pharmaceutical tank head production
- Power generation equipment — steam drums, columns, and separator heads
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