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Stöber PE-ME
servo gear
- Planetary gearbox – economic series
- Rated torque to 160 Nm
- 3:1 – 100:1 / 8 – 10 arcmin






With the new design of the ServoFit® PE planetary gear unit, STÖBER is adding special versions for automation and robotics functions to its servo gear unit range. In line with the reputation of the helical gearing specialist, this new gear units is also equipped with this system.
With its helical gearing, the PE planetary gear unit represents a first in its product and price category. When compared with the spur gear units previously in standard use, it is clear that the helical gearing ensures very low noise levels and high smoothness of operation. Plus there is the high housing stability provided by the ingenious monobloc construction with integral motor adapter for mounting of standard servo motors.
The market launch of the ServoFit® PE planetary gear unit covers sizes PE2 to PE5, all being available in single and two stage versions up to i = 100. The two stage units also feature the monobloc housing.
Palletizer with Trio Motion Controller, Estun servo and Stöber gears
Flexible programmable 4-axis palletizer robot. Heart in this application is the Trio Motion Controller where the 4 axis robot with 4 Estun servo drives is controlled via a coordinate transformation. The fast EtherCAT connection between the Trio MC4N-ECAT controller and the Estun Pronet-EC drives ensures accurate and simple communication. In addition to the Trio Motion Controller, mechanical components are also used, such as a slewing ring bearing for the rotation movement and a rack and pinion for the horizontal movement. Each servo shaft is equipped with a Stöber planetary gearbox or angle worm gearbox.
Advantages of solution
- Cost effective products of Estun and Trio Motion Technology
- Reliable and fast commissioning with EtherCAT
- Cost effective installation with EtherCAT bus
- Flexible and easy to programm with Trio Motion Perfect and RPS Kinematics
- Complete package of products by ATB Automation:
- Calculation and selection of the servomotors and gears
- Training and support of the motion controller, HMI and servodrives
Handling system diamonds with Estun, Stöber and HSB
ATB Automation has been brought in for automation of diamond order picking in a warehouse. Orders are processed by the HSB XYZ system, taking the diamonds via a barcode system from the shelves in the safe. The large XYZ system also places new diamonds to stock. Right next to the safe is a smaller second xyz system. This system loads the orders into and out of containers to and from the big xyz system in the safe.
The linear system consists of HSB-Beta Z linear axes with toothed belts. The large system in the safe has a range of 2500 x 2300 mm in the horizontal plane and 1790 mm in the vertical plane. The maximum velocities and accelerations that are achieved are 1 m/s and 2 m/s2.
Estun servo drives
The servo system is from the Chinese supplier Estun. The ProNet-EC servo drives are equipped with an EtherCAT bus system. This bus is used for control by a pc equiped with TwinCAT. The compact Estun EMJ servo motors are equiped with Stober PE ME planetary gearboxes and Stöber KL MQ bevel gear units.
ATB Automation: More than componten
The calculations and the selection of the components for an optimal XYZ drive system has been made by the sales engineer of ATB Automation. The supplier of the complete automatic warehouse took care of the commissioning and tuning of the system in close collaboration with one of the ATB Automation software engineers.
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Flexible mounting system
The Stober ServoFit® gearboxes are available with a flexible system adapter and couplings for many servomotor
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Assembly servomotor at ATB Automation
Assembly of the servo motor is simple. If desired, this can be carried out at the workshop of ATB Automation.