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Frame design:
The GHB series is an economical line of user-friendly press brakes, with structural stability, high profitability and bending precision. It is suitable for those customers that do not need high bending tolerances.
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.
The unidirectional mechanical deflection compensation mechanism adopts a unique specially processed wedge block. Each set of wedge blocks is designed according to the deflection of the upper and lower beam. The CNC calculates the required compensation amount according to the load force when the workpiece is bent, and automatically controls the relative movement of the wedge block to effectively compensate for deflection. The mechanical compensation system, as well as the hydraulic one, is certainly a great help for the operator during bending operation; it is reliable, precise and is not subject to any oil leakage.
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 anti-collision rear fingers have two major design features:
The fingertip can be replaced in case of wear out; this is a solution economically convenient for customers who do not need to replace the entire finger.
If the finger is subject to large impact force, it will automatically pop out, thus avoiding damage to the overall mechanism and affecting the positioning.
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 Italian ESA CNC control features the following characteristics:
● 10 “color multi-touch screen;
● 2D work piece graphics programming and die editing;
● 2D graphic display of machine tool frame, workpiece and mold;
● Manual 2D graphic identification of the best bending sequence(option);
● 2 USB port for memory stick;
HAWE hydraulic system: the hydraulic control system of the bending machine is composed of a SAKB pressure control block and two independent filling valves to ensure accurate and efficient operation of the CNC bending machine. All valves (except the filling valve) are integrated into one control unit. The bending force flow is controlled by proportional technology. In this way, the operating speed (approaching, working and returning) and the required pressure can be controlled.
※ Applicable to models with bending force up to 2000KN.
※ PIH and PSH valves provide very fast and accurate control by simultaneously energizing the solenoid coils at both ends of the solenoid valve.
※ Other options (such as hydraulic clamping module or proportional hydraulic deflection compensation) can be connected to the hydraulic system module interface.
※ The system complies with effective accident prevention regulations and has been certified by the Type Inspection Certificate No. 13028.
※ 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.
EZ type (available for GHM and GHB 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
● Can be upgraded to wireless foot switch
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.
Standard intermediate clamp with quick release lever for fast tool change. Suitable for vertical loading/unloading of tools. No need to slide the tools laterally.
Self-centering type. Available for 60-90 mm dies.
