Gefran Solution for Mobile Hydraulics

         

Gefran offers solutions that perform specific functions in the field of Mobile Hydraulics. Gefran linear displacement transducers, displacement sensors, and indicators are ideal for a wide variety of applications: from steering systems through to stability control and to suspensions.

Flexibility
Gefran displacement transducers are based on potentiometric and magnetostrictive technology and provide various performance levels according to application requirements. All of the products:
    • Include a high protection level (IP67 - IP68)
    • Resist high pressures (350-700 bar for cylinder models)
    • Heavy-duty, ready to install in harsh environments or outdoors, and include high resistance to vibration and shock
    • Powered with low voltage 10...30 Vcc

Installation of a linear displacement transducer in hydraulic cylinders: Gefran offers 3 solutions

 Display
The use of simple displays or graphic terminals allows integration with more advanced control systems.

 Checking pressure in hydraulic circuit
TK transmitters monitor oil pressure in the hydraulic circuit for checking vehicle load and stability.

 Roll-over prevention
The synergy of displacement transducers inside (IC, RK) or outside (PC67, PMA) the cylinder with pressure transmitters (TK) guarantees total working control of the bucket to maintain tilt even during load handling. Load control guarantees greater stability and safety.

 Steering system
RK displacement transducers are ideal for installation inside single-action cylinders normally used with hydrostatic steering units. The sensor is designed to guarantee resistance against vibration and shock typical in this application.

 Stability control
Suspension cylinders are an integral part of a sophisticated, electronically controlled system that guarantees vehicle flexibility and stability based on applied weights, work load, and ground conditions. RK and IC transducers are designed to provide precise and positive control in this type of application.

 Load handling control
The use of increasingly complex control systems to check vehicle position and movement of each joint requires the use of transducers with advanced interfaces, such as CANopen, available on all Gefran magnetostrictive transducers.

Lift	Agriculture

Gefran products for Mobile Hydraulics world

Displacement transducers
RK / RK-A / RK-C / IK4 / RK XL0319
     • Magnetostrictive technology                                        • Potentiometric technology
       Standard stroke: 50...4000 mm                                       Standard stroke: 50...1000 mm
       Protection up to IP68                                                       Protection up to IP67
       Resistance to vibrations up to 20g                                 Resistance to vibrations up to 20g
       Shock resistance up to 100g                                          Shock resistance up to 50g

Pressure transducers
The Gefran pressure sensor most appropriate for mobile hydraulic applications is the TK series with M12 (IP67) connector: pressure intervals usually range from 200 to 500 bar (3000 to 7500 psi).
     • Excellent accuract (0,25%)
     • High protection level (IP67)
     • Stability at high temperatures
     • Reliability

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GEFRAN offers a wide range of components for automating primary processes in the wood industry, as well as complete solutions, from sensor to actuator, for work processes and coupling of materials, surface finishing, painting, and storage:
- displacement, force, pressure transducers for precise positioning of mechanisms (size settings, cutting, etc.) and machine parameter control systems.
- sensors, controllers, programmers and actuators for all processes with heating phases (spreading, gluing, drying, bending, edging, etc.), and for programmed control of ambient parameters (humidity and temperature) in seasoning systems.
- positioners and level indicators for sanders.
- configurable indicators to display (on the machine or control panel) other parameters such as input/rpm’s, pieces produced, etc.
Choosing GEFRAN means giving added value to your system in terms of production flexibility, precision and repeatability, guaranteed by components that can sustain a high number of cycles under harsh conditions.

GEFRAN SOLUTIONS FOR METALWORKING

GEFRAN offers a wide range of automation components for metalwork plants and machines, from melting to heat treatments, from deformation to surface finishing to cutting systems: - displacement, force, pressure transducers for precise positioning of mechanisms (for example, press rollers, tools) and machine parameter control systems - sensors, controllers, programmers and solid-state actuators for heat control and the running of temperature profiles (for example, in electric or gas furnaces for heat treatment of metals, washing and drying systems) - level indicators and positioners (for rollers, benders, sanders, etc.) - maximum/minimum alarm units for safety devices - configurable indicators to display (on the machine or control panel) other parameters such as input/rpm’s, pieces produced, etc. - phase angle power solid-state relays to control voltage on transformer primaries (for example, in the furnace industry, welding, etc.). - Gefran-Siei Servo drives for metal sheet cutting lines, including special software application for transversal cutting systems equipped with Feeder or Flying Shear.

» Feeder

FEEDER ROLL
The Feeder Roll is equipped with QL and HQL asynchronous motors (IP54 version) or HQLa asynchronous motors (IP23S version) complete with incremental encoder.
In highly dynamic applications, the Feeder Roll may be equipped with an SBM brushless motor and XVy-EV servo drive.
The motor is powered by an XVyA-EV servo drive that receives the encoder on the metric wheel as well as the motor encoder.
The Feeder control system is fully integrated in the drive
The drive is connected to the machine PLC via CANbus, GDnet, DeviceNet or Modbus.

BLADE FLYWHEEL MOTOR
The Flywheel Motor is powered by an AGy-EV drive. The drive is connected to the machine PLC via CANbus, DeviceNet or Modbus.


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» Flying Shear


CARRIAGE MOTOR
The Carriage is equipped with QL and HQL asynchronous motors (IP54 version) or HQLa asynchronous motors (IP23S version) complete with incremental encoder.
The motor is powered by an XVyA-EV servo drive that receives the encoder on the metric wheel as well as the motor encoder.
In highly dynamic applications, the carriage may be equipped with an SBM brushless motor and XVy-EV servo drive.
The Flying Shear control system is fully integrated in the drive.
The drive is connected to the machine PLC via CANbus, GDnet, DeviceNet or Modbus.

BLADE FLYWHEEL MOTOR
The Flywheel Motor is powered by a drive in the AGy-EV series. The drive is connected to the machine PLC via CANbus, DeviceNet or Modbus.


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In constant contact with its customers when creating and designing applications, Gefran now satisfies their specific needs by providing a new, extremely useful and effective tool.