Digital Control with Siemens Touchscreen Display
With the Siemens touchscreen display you can set the following parameters:
- Maximum upstroke and downstroke of the hydraulic cylinder
- Pressure maintenance time on the lower platform
- Work pressure
- Decompression time
- Piece counter
- Prestop ascent/descent: function that allows you to stop the ascent or descent before reaching the quota, thus eliminating errors caused by speed and cavitation due to the weight of the mould. It guarantees an accuracy of 0.1mm.
- Alarm management
There is the possibility of storing 100 different programs with a progressive number.
You can choose between manual and automatic modes.
In automatic mode the cylinder rises automatically.
The stroke is read using a wire encoder.
The pressure is read using a transducer installed on the hydraulic control unit.
Air/oil Heat Exchanger
The air/oil heat exchanger is used to cool hydraulic circuit of the press and uses ambient air as a cooling source, which is conveyed onto the circuit via a fan.
It serves to prevent overheating of the hydraulic circuit and to maintain a constant oil temperature, thus avoiding damage to the hydraulic system and seals.
It is a particularly recommended accessory when the press needs to work continuously or for long production cycles.
When we install the heat exchanger we also mount the decompression valve to safeguard the cooling system.
On large tonnage presses we also mount the exchanger with recirculation and separate motor, for greater cooling effectiveness.
Stem Anti-Rotation Device
The anti-rotation device of the cylinder rod is a safety system which prevents twisting of the rod and therefore serves to keep any molds fixed to the cylinder in line.
This system is a sort of metal jaw with two holes: the stem is inserted inside the larger hole, while the guide rod slides through the smaller hole.
Remote Controller
Radio control with double buttons to operate the hydraulic press without the constraint of a fixed control panel or a pendant control panel with cable.
The radio control manages the ascent and descent of the cylinder, as well as its transversal movement. It also regulates the transversal and longitudinal displacement of the upright.
If the hydraulic press is equipped with lifting cylinders on the work surface, it also allows you to manage their movement.
Pendant Push-Button Panel
Pendant control panel with cable with double button operation to be pressed simultaneously.
It is a very useful accessory for hydraulic straightening presses, because it allows the operator to move freely around the machine and to closely control the pressing phases, which would not be possible with the fixed control with levers and buttons or with the pushbutton panel on the pedestal.
The pendant control panel manages the ascent and descent of the cylinder, as well as its transversal movement. It also regulates the transversal and longitudinal displacement of the upright.
If the hydraulic press is equipped with lifting cylinders on the work surface, it also allows you to manage their movement.
Lift Cylinders
The lifting cylinders are installed on the platform of the hydraulic press and have the function of lifting the sheet metal to allow the operator to position support shims underneath.
Once these shims have been placed, the cylinders are lowered and the metal piece can be straightened.
Subsequently, when the sheet metal processing is finished, the lifting cylinders allow the material to be raised and thus facilitate its handling.
The cylinders have a diameter of 25mm with a stroke of 80mm and each of them can lift up to 5 tons.
The customer can choose whether to install 6, 8, 10 cylinders or a higher number on request.
They are moved with the lever control on the hydraulic control unit (basic version) or with the pendant pushbutton panel or with the radio control.
Laser Scanning of Sheet Metal
The hydraulic straightening press, PMM model, can be equipped with the sheet metal laser scanning function.
This option consists of a laser that is installed next to the hydraulic cylinder. The laser beam measures the distance that separates it from the sheet metal placed on the press table and this information allows the operator to understand which points of the sheet metal need to be straightened.
The measurement values are displayed in real time on the display located on the baler portal.