| Bending force | Bending length | Throat depth | Max. stroke | Daylight | Approaching | Working | Return | Main servo |
| speed | speed | speed | motor power | |||||
| KN | mm | mm | mm | mm | mm/s | mm/s | mm/s | KW |
| 600 | 2100 | 300 | 250 | 450 | 200 | 0-15 | 165 | 6.7 |
| 600 | 2600 | 300 | 250 | 450 | 200 | 0-15 | 165 | 6.7 |
| 1250 | 3100 | 500 | 300 | 500 | 200 | 0-12 | 200 | 18 |
| 1250 | 4100 | 500 | 300 | 500 | 200 | 0-12 | 200 | 18 |
| 1850 | 3100 | 500 | 300 | 500 | 175 | 0-12 | 165 | 22 |
| 1850 | 4100 | 500 | 300 | 500 | 175 | 0-12 | 165 | 22 |
| 1850 | 5100 | 500 | 300 | 500 | 150 | 0-12 | 165 | 22 |
| 1850 | 6100 | 500 | 300 | 500 | 150 | 0-12 | 165 | 22 |
Frame design:
The GHT series represents the top of the range of press brakes produced by G-Press as they are characterized by advanced technological solutions deriving from previous experiences with an historic Italian partner. It has a complete configuration that guarantees high speed and accuracy which can meet the bending requirements of the most demanding customers.
In order to ensure that the machine can still maintain good rigidity and accuracy after long time use, the structure has been designed considering 2.5 times the theoretical frame deformation inertia, and has passed the stress analysis and fatigue resistance test.
Process:
The frame is a bolt connection structure in Q345 type material and have following specifications:
? Bolts which connects square tube and side plates;
? Pins, to ensure rigidity and stability as square tube and the side plate are not subject to displacement in the long term.
The”G-CS”system is equipped with high-precision pressures gauges which are installed in the upper and lower beam of the machine to detect the deformation of the relevant beam during the bending process. KEYENCE PLC receives and processes the data fed back and then controls the action of the pressure proportional valve and independent oil pump to ensure the compensation during the entire bending process thus perfectly achieving “the consistency of the bending angle within the full length of the work piece”.
With REFLEX System, the natural “Yawning” effect of “C” frames is eliminated.
The actual position of the upper beam is measured by two linear encoders installed on the auto-balanced lever and “C” shaped sub-frames that are independent from the main frame; as such the system corrects the deformation during bending.
Thanks to this system it is possible to achieve up to 1-micron accuracy in ram positioning as well as ensure a great repeatability and consequently guarantee angle consistency.
The back gauge system is another important part of the press brake as a guarantee of dimensional accuracy of the bending product. The 2 axes (X-R) back gauge of the standard GHB series ensures the most flexible, precise and high-speed positioning of almost all complex bending work pieces, thanks to the guide design which foresees the use of double sliders to ensure the accuracy.
The X-R axes motion is controlled by a double gear reducer system which is considered a “smart” design and has allowed to make a more compact version.
The motor offer excellent acceleration and are ideally suited for high speed and precision press brakes:
● High feed smoothness
● Large torque range
● High maximum speed
● High-resolution encoder
Benefits:
● High travel speed in the downward and backward movement
● High energy savings
● Longer service life for pump, oil, filter and all related components
Path-time diagram of the upper cylinder of a press brake.
The Netherlands DELEM CNC control features the following characteristics:
● 2D and 3D graphical touch screen programming;
● 3D visualisation in simulation and production;
● 17” high resolution color TFT;
● Full windows application suite;
● Bend sequence calculation;
● USB, peripheral interfacing;
● Open system architecture;
● Sensor bending & correction interface
The control unit of the pump controlled bending machine is a kind of servo pump control system of the bending machine, which adopts the combination control of servo motor and bidirectional internal gear pump. The speed of the servo motor is controlled by the numerical control system, the output oil flow of the oil pump is accurately controlled, and the two cylinders of the bending machine are controlled synchronously. The accurate control of the position of the slider can be realized, the downward speed is faster, the work efficiency is higher, and the installation is simple, Energy saving and environmental protection.
Advantage:
1. The use of servo motor makes the system low energy consumption in the working gap, the energy saving rate reaches 70%, which can realize the real energy saving.
2. The noise of the machine is much lower, and the noise value is no more than 60 dB when the machine is running at the highest speed.
3. The consumption of oil is 70% less than that of the model.
4. Higher work efficiency, 30% higher than that of the same model.
※ Real-time tracking of the current position of the back gauge finger when bending.
※ The LED light strip on the top beam indicates the actual position of the “back gauge finger” allowing the operator to quickly align the workpiece during the bending process, thus improving bending efficiency
※ The LED light strip provides warning and protection signs by changing color according to the three press brake working conditions: approaching speed (yellow LED light), working mode (red LED light) and return (green LED light).
Manual sliding front support arms.
available for GHT and GHL series
G-Press foot pedal is in accordance to CE safety requirements; its features are as follows:
● Double safety switch which allows machine descent only if foot is totally inside
the pedal;
● 3-position safety design
● With shielded snake skin hose cable
Main Technical Features:
● Laser protection, Multi beam Receiver
● Protective areas: Front, middle and rear
● The safety level is CAT.4 and SIL3
● Detection Case protection degree: IP 65
● Laser classification: class 1 M
● Response time: 5 ms
● Operating temperature 0°C~50°C
● Mounted on the upper beam
● Change Speed Point: 5mm + Stopping Space
● The maximum protective distance: 15M
● LED indicators show various states
Consists of light guards mounted to the side frame which stops the machine if a human steps inside.
G-PLC is a safety module developed by our company. Downstream and upstream dual channel mode is used to ensure machine safety; it also integrates the upper and lower fixtures, ordinary light barriers, dual pedal interface and it can be expanded for more functions.
The indicators on the module provide great convenience for maintenance. It is equipped with an interface that allows direct communication with the software to locate the fault quickly and intuitively reduce downtime.
The G-Press hydraulic system is equipped with a fin heat exchanger (see photo) which improves the effect by at least 10-20 times, compared to the traditional brass tube or other heat exchanger.
1.Application
Electric control and power supply cabinets of CNC machine tools
Communication equipment
SPC exchange
Measuring instruments
2. Functions and Features
● Two separate air circulation systems can prevent dust, oil mist and moisturefrom entering the enclosure.
● Temperature and humidity inside the enclosure can be effectively controlled toprevent early aging and failure of electrical components. Humidity inside theenclosure can be controlled at 40% or so.
● The full-featured controller is easy to use. Temperature can be adjusted as thecase may be.
● Various protection functions and passive alarm terminals are available to sendfault signals to CNC system.
● Advanced PTC heating elements are utilized to ensure automatic temperaturerise at low temperature.
● There are different installation methods, including wall-mounted, embeddedand door-mounted, For each installation method, there are multiplespecifications available for your choice.
G-Press upper hydraulic clamping system allows to change tooling horizontally or vertically. Tools are self-seated and aligned automatically within seconds when pressing the button of a separated hydraulic power pack. All these features guarantees the operator a safe, fast and efficient bending process. G-Press hydraulic top tool clamping top bearing capacity 180T/M, shoulder bearing capacity 250T/M.
With Ty-adjustment function allows you to adjust in Y direction every 200 mm which makes it possible to fully compensate for unavoidable – cumulative – processing tolerances in the press brake, G-Press hydraulic bottom tool clamping bearing capacity 200T/M.
