New MG Italian Plate Rolls for plate from 10mm to HUGE! 3 or 4 Roll Machines with DRO or CNC.
Affordable European quality ISO 9001 Certified with a wide range of capacities and options.
Machine type MH 4 rolls
The MH series 4 roll plate bending machine has been refined over the years through extensive research and development and is considered one of the finest plate rolling machines available on the market worldwide. The 4 roll machine is the easiest, quickest, rolling machine to operate thanks to its ability to pinch the plate between the 2 central driven rolls, prebend the leading edge, and rolling the body of the part along with the trailing edge all in one direction and in one pass. There is no chance to lose the position of the plate due to being pinched at all times during the rolling cycle, which makes the 4 roll the only machine perfectly suited to be controlled by a NC or CNC control.
When rolling with a 4 roll machine one of the most important aspects is the ability to maintain a perfect parallel of the lower central pinching roll. The lower roll on the MH 4 roll is raised and lowered by rotating an eccentric bar located beneath the lower roll. Since both ends of the roll are being lifted by this one piece eccentric bar it is impossible for the lower roll to be moved out of parallel. Other manufacturers are using a series of complex and expensive hydraulic circuits and multiple encoders to control oil flow to 2 separate cylinders pushing upwards to keep a theoretical parallel. The ability to hold the roll parallel is lost if anyone of these separate components fail. Side roll parallelism is also maintained by a torsion bar system which connects both ends of the roll together, again eliminating the need for extra encoders and hydraulic circuits with higher failure rates.
The planetary movement
The 2 central driven rolls are rotated by hydraulic motors and high efficiency planetary gearboxes coupled to the rolls. This along with the rolls being mounted in low friction sealed bearings greatly reduces the torque lost by clutches and synchronization systems used on other machines. The side rolls are raised and lowered on planetary swing guides with updated geometry which eliminates the far less efficient rectilinear gib and way systems. This allows us to power the hydraulic pumps with a smaller more efficient electric motor which can represent a substantial yearly energy savings without sacrificing machine power or speed.
Our machines have been designed to work many years without maintenance. This also thanks to the well-known strength of our hydraulic systems. Furthermore, special manual distributors and valves allow us to have infinite variable speeds on all movements. Such a characteristic is very important in some phases of bending.
3 Rolls AK type machines
Electro-welded frames.
Three powered rolls with hydraulic motors installed on them.
Planetary roll movements and rolls parallelism control by massive torsion bars.
- High quality forged steel.
- Induction tempered and hardened.
- Polishing after hardening.
- Special version rolls for particular needs upon request.
- Bearings are pre-lubricated and protected by special washer which don't need any lubrication for the entire life of the machine
- Hydraulic motors together with epicycloidal gear boxes mounted on rolls
- No secondary transmission
- Maximum available coupling in every working circumstance, providing the best solution of transmission without losing power.
- Planetary movement bending rolls
- Rolls mounted on rods that turn on per-lubricated bearings
- Removal of friction and, consequently, less installed power and high precision for the whole of the machine life
- Control of parallelism by massive torsion bars
- No more problems caused by parallelism hydraulic or electro-hydraulic control
- Possibility of tilting the rolls for conical working and return to the initial position in a few second.
The planetary movement of the bending rolls designed with new variable geometry allow our machines to bend diameters below 1.1 times the top roll diameter.
This characteristic allows performances up to 30% higher on large diameters compared to our direct competitors.
Our machines have been designed to work many years without maintenance. This also thanks to the well-known strength of our hydraulic systems. Furthermore, special manual distributors and valves allow us to have infinite variable speeds on all movements. Such a characteristic is very important in some phases of bending.
Delivery, commissioning, training and ongoing support Australia wide.
Please call for additional information.