4 Roll Plate Bending Machines
Category:
Product Code: 4R SBS
HS Code:
Hydraulic 4-Roll Plate Bending Machine: Pinch, Pre-Bend and Roll Perfect Cylinders in One Setup
Every tank shell, pressure vessel and wind tower section starts as a flat plate. Turning that plate into a true, round, weld-ready shape is where time, material and quality are won or lost. The SBFM Hydraulic 4-Roll Plate Bending Machine (4R SBS) is built for exactly this job. It bends thin or thick sheet metal plates to the desired curvature and is ideal for full circles, semicircles, cones, ovals and radius shapes.
Quick Product Facts
- Product: Hydraulic 4-Roll Plate Bending Machine
- Product code: 4R SBS
- Manufacturer: SBFM Machinery, Konya, Türkiye
- Category: Metal Processing
- Process: Hydraulic roll bending of plates into cylinders, cones, ovals and arcs
- Roll arrangement: Four rolls: top, bottom and two side rolls
- Pre-bending: Both plate edges in the same setup
What Is a 4-Roll Plate Bending Machine?
A 4-roll plate bending machine, also called a four-roller plate roll, shapes flat plate by passing it between four rolls. The top and bottom rolls pinch and drive the plate, while the two side rolls move to set the curvature. Because the rolls are positioned hydraulically, force is applied smoothly and can be adjusted precisely, so one machine can work on light plate and heavy plate alike.
Compared with a three-roll machine, the additional roll changes the whole workflow. The plate stays clamped from the first millimeter to the last, which gives better control, tighter diameters and a rounder finished part.
Pre-Bending and Pinching in a Single Setup
On a three-roll machine the plate ends often stay flat and must be pre-bent in a press or by turning the plate around. On the SBFM 4-roll machine the plate is held firmly between the top and bottom rolls while the side roll bends the leading edge. The plate is then reversed and the other edge is bent the same way. The firm pinch also keeps the plate square and stops it from slipping, so flat ends stay short, material waste falls and the seam closes cleanly for welding.
Key Features and Benefits
- Four-roll design with pinch action for accurate squaring and non-slip feeding
- Pre-bending of both edges in one setup, leaving much shorter flat ends
- Hydraulic roll movement for smooth, adjustable force on thin and thick plate
- Versatile shapes: full circles, semicircles, cones, ovals and radius forms
- Robust welded body that stays stable and accurate under heavy load
- Repeatable results from job to job through precise roll positioning
- Easy operation that helps operators learn quickly and work safely
Materials You Can Bend
The machine rolls carbon steel, stainless steel, aluminum and other bendable plate materials. Maximum thickness and width depend on the model and on the yield strength of the material. Always confirm capacity for your own material, thickness and plate width.
Applications
- Pressure vessels, boilers and storage tanks
- Wind tower sections and steel structure components
- Large-diameter pipes and cylinders made from rolled plate
- Shipbuilding and heavy fabrication
- Silos, hoppers, chimneys and ducting
- HVAC, food and chemical process equipment
Tips for Perfect Rolling
Good rolling is a mix of the right machine and the right method. Pre-bend both edges first so the finished cylinder has no flat spots. Allow for springback, the slight return of the plate after bending, by rolling a little beyond the target and checking with a template. Bend gradually in several passes instead of forcing the radius at once.
Part of a Complete Sheet Metal Forming Range
SBFM Machinery has built sheet metal forming machines in Konya since 1998. Alongside plate bending machines, our range includes hydraulic dishing presses, flanging 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
- Maximum plate thickness, width and material grade
- Smallest cylinder diameter you need to roll
- Whether you need cone bending and oval shapes
- Control level and production volume
- Available floor space and power supply
Maintenance for Long Service Life
Keep the rolls clean, check the 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 rolling accurate and reliable for many years.
Frequently Asked Questions
What can the machine do? It bends thin and thick sheet metal plates into full circles, semicircles, cones, ovals and radius shapes.
Why choose four rolls instead of three? Four rolls pinch the plate and pre-bend both edges in one setup, so you get shorter flat ends and no need to turn the plate.
How do I choose the capacity? Send us your plate thickness, width, material and smallest diameter, and our engineers will recommend the right model.
Request a Quote on MachineWorld.biz
Ready to roll 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 rolling. Reliable production. Request a quote today.
Hydraulic 4-Roll Plate Bending Machine
4 Roll Plate Bending Machine is one of the hydraulic roller machines used in the industry for bending thin or thick sheet metal plates at the desired inclination. This machine is ideal for forming full circle, semicircle, conical, oval and radius shapes.