4V HM Orbital 4-Roll Plate Bending Machine
In the 4V HM orbital 4-roll plate bending machine from EBR METAL, hydraulic pistons move the bottom roll and the side rolls on an orbital path. A hydromotor and planetary gearbox drive the top roll, and a gear and cardan system drives the bottom roll.
The range has 22 models with working lengths from 1,550 to 4,100 mm. NC or CNC control is available.
• Working length 1,550–4,100 mm • Central rolls Ø150–260 mm • Orbital roll movement • NC or CNC optional
In the 4V HM orbital 4-roll plate bending machine from EBR METAL, hydraulic pistons move the bottom roll and the side rolls on an orbital path. A hydromotor and planetary gearbox drive the top roll, and a gear and cardan system drives the bottom roll.
The range has 22 models with working lengths from 1,550 to 4,100 mm. NC or CNC control is available.
- Working length 1,550–4,100 mm
- Central rolls Ø150–260 mm
- Orbital roll movement
- NC or CNC optional
How the 4V HM Works
The plate is held between the top and bottom rolls and moved by the rotating rolls. The side rolls are used both for pre-bending and for rolling, and usually both plate ends are pre-bent in turn without taking the plate out of the machine.
Depending on the model, its equipment and its capacity, the 4V HM rolls full circles, elliptical (oval) shapes and parts with different diameters, and cones with the conical bending device.
4V HM Product Gallery
4V HM General Features
- Welded steel frames
- Orbital movement of the bottom and side rolls on hydraulic pistons
- Top roll driven by a hydromotor and planetary gearbox; bottom roll by a gear and cardan system
- Full circles, elliptical shapes and varying radii
- Overload protection
- Three digital readouts for roll positioning
- Hydraulic drop-end
- Mobile control panel
- Manufactured in conformity with CE requirements
4V HM Standard Equipment
- SAE 1050 (CK45-50) forged or hot-rolled, induction hardened and polished rolls
- Conical bending device
- Hydraulic balancing system
- Double-speed working
4V HM Optional Equipment
- NC or CNC control
- Overhead crane for large diameters
- Hydraulic lateral side supports for large diameters
- Hydraulic plate ejector
- Ground rolls for special jobs
- Infinitely variable speed
- Electronic balancing system
NC Control
The NC control has a teach mode: the operator bends a part while the controller records each step, and the saved program repeats the same sequence on the next part.
4V HM Technical Specifications
| Model | Useful length (mm) | Without pre-bending, min dia = top roll x5 (mm) | Without pre-bending, min dia = top roll x1.5 (mm) | With pre-bending, min dia = top roll x5 (mm) | With pre-bending, min dia = top roll x1.5 (mm) | Central rolls dia (mm) | Side rolls dia (mm) | Motor power (kW) | Working speed (m/min) | Width (mm) | Length (mm) | Height (mm) | Approx. weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4V HM 1550x150 | 1550 | 7 | 4.5 | 4.5 | 3.5 | 150 | 130 | 4 | 1.5-6 | 960 | 3750 | 1100 | 2500 |
| 4V HM 1550x180 | 1550 | 9 | 7 | 7 | 5 | 180 | 150 | 5.5 | 1.5-6 | 1150 | 3900 | 1250 | 3250 |
| 4V HM 1550x200 | 1550 | 11 | 9 | 9 | 7 | 200 | 160 | 5.5 | 1.5-6 | 1150 | 3900 | 1250 | 3500 |
| 4V HM 1550x220 | 1550 | 12 | 10 | 10 | 8 | 200/220 | 160 | 5.5 | 1.5-6 | 1150 | 3900 | 1250 | 3600 |
| 4V HM 1550x245 | 1550 | 15 | 12 | 12 | 10 | 245 | 180 | 7.5 | 1.5-6 | 1600 | 3800 | 1470 | 4600 |
| 4V HM 2050x150 | 2050 | 6 | 4 | 4 | 3 | 150 | 130 | 4 | 1.5-6 | 960 | 4250 | 1100 | 2800 |
| 4V HM 2050x180 | 2050 | 8 | 6 | 6 | 4 | 180 | 150 | 5.5 | 1.5-6 | 1150 | 4400 | 1250 | 3765 |
| 4V HM 2050x200 | 2050 | 10 | 8 | 8 | 6 | 200/220 | 160 | 5.5 | 1.5-6 | 1150 | 4400 | 1250 | 3950 |
| 4V HM 2050x220 | 2050 | 11 | 9 | 9 | 7 | 220 | 160 | 5.5 | 1.5-6 | 1150 | 4400 | 1250 | 4080 |
| 4V HM 2050x245 | 2050 | 13 | 10 | 10 | 8 | 245 | 180 | 7.5 | 1.5-6 | 1600 | 4300 | 1470 | 5450 |
| 4V HM 2050x260 | 2050 | 16 | 13 | 13 | 10 | 260 | 200 | 7.5 | 1.5-6 | 1600 | 4300 | 1550 | 6100 |
| 4V HM 2550x180 | 2550 | 6 | 4 | 4 | 3 | 180 | 150 | 5.5 | 1.5-6 | 1150 | 4900 | 1250 | 3900 |
| 4V HM 2550x200 | 2550 | 8 | 6 | 6 | 4 | 200/220 | 160 | 5.5 | 1.5-6 | 1150 | 4900 | 1250 | 4550 |
| 4V HM 2550x220 | 2550 | 9 | 7 | 7 | 5 | 220 | 160 | 5.5 | 1.5-6 | 1150 | 4900 | 1250 | 4600 |
| 4V HM 2550x245 | 2550 | 10 | 8 | 8 | 6 | 245 | 180 | 7.5 | 1.5-6 | 1600 | 4800 | 1470 | 6170 |
| 4V HM 2550x260 | 2550 | 13 | 10 | 10 | 8 | 260 | 200 | 7.5 | 1.5-6 | 1600 | 4800 | 1550 | 6800 |
| 4V HM 3100x180 | 3100 | 5 | 3 | 3 | 2 | 180 | 150 | 5.5 | 1.5-6 | 1150 | 5450 | 1250 | 4300 |
| 4V HM 3100x200 | 3100 | 6 | 4 | 4 | 3 | 200/220 | 160 | 5.5 | 1.5-6 | 1150 | 5450 | 1250 | 5085 |
| 4V HM 3100x220 | 3100 | 8 | 6 | 6 | 4 | 220 | 160 | 5.5 | 1.5-6 | 1150 | 5450 | 1250 | 5200 |
| 4V HM 3100x245 | 3100 | 9 | 7 | 7 | 5 | 245 | 180 | 7.5 | 1.5-6 | 1600 | 5350 | 1470 | 6850 |
| 4V HM 3100x260 | 3100 | 10 | 8 | 8 | 6 | 260 | 200 | 7.5 | 1.5-6 | 1600 | 5350 | 1550 | 7685 |
| 4V HM 4100x260 | 4100 | 6 | 4 | 4 | 3 | 260 | 200 | 7.5 | 1.5-6 | 1600 | 6350 | 1550 | 8900 |
Plate bending capacities are given for 260 N/mm² plate yield strength.
Without pre-bending, flat plate ends may remain depending on the diameter.
Central rolls 200/220: top roll Ø200 mm, bottom roll Ø220 mm. Side roll diameters are listed separately.
Choosing the 4V HM
The 4V HM is the orbital model in the 4-roll range; the 4V HMK and 4V HMR use pyramidal-linear roll movement. Tank and silo shells, pressure-vessel parts and machinery bodies can be rolled on the 4V HM, depending on thickness, working length and diameter.
Send us the material and grade, the thinnest and thickest plate, the working length, the minimum inside diameter and whether the capacity must include pre-bending.
Request a Quote for the 4V HM
Send us the material type and grade, the thinnest and thickest sheet or plate, the maximum working length and the minimum inside diameter. A drawing or a photo of a sample part helps us propose a model and configuration.
Frequently Asked Questions About 4V HM
What does orbital roll movement mean?
On the 4V HM, hydraulic pistons move the bottom roll and the side rolls on an orbital path. On the 4V HMK and 4V HMR, they move in straight lines (pyramidal-linear).
Is the 4V HM available with CNC?
Yes. NC or CNC control is available as an option. NC teach mode can save a bending sequence for reuse.
What working lengths are available?
From 1,550 to 4,100 mm.
Can the 4V HM roll cones?
Yes. The conical bending device is standard.