1. Large Diameter Hollow Rotary Table

Large Diameter hollow bore to penetrate the output table equipped HG Series ensure flexibility and convenience in the design of equipment when installing complex wiring and piping.

Model Name	Size of Plinth[mm]	Hollow bore Diameter[mm]
HG60	60mm	Ø20
HG100	100mm	Ø29
HG130S	130mm	Ø56
HG170S	170mm	Ø85

2. High Accurate Gear Driven

Since it is driven directly by the gear with extremely low backlash, it can perform precise positioning with ± 10arcsec of Repeatability and Lost Motion with less than 2 arcmin. In addition Belt-Pulley is not used, so there is no need to adjust the tension of the belt, so maintenance is easy and operation cost can be reduced.

3. High Rigidity / High Load

Cross roller bearing with high rigidity is integrated with a hollow rotary table to maximize the stiffness of the actuator by being able to receive loads in all directions such as thrust load and moment load.

※ In case of HG170S model
· Maximum permissible axial load : 4000N
· Maximum permissible moment : 200N·m

4. Simple Configuration of Homing Function

The home sensor is available as an option to easily configure the homing operation that is often needed in the rotary table. All the parts needed for homing output are provided, saving the effort to design, assemble and procure parts when the home sensor installation is needed.

5. Supporting Various Field Network

Ezi-Robo HG is a unit that combines Ezi-SERVO, a high performance closed loop step drive. Ezi-SERVO drives that support field networks such as EtherCAT, Ethernet and CC-Link can be connected to master controllers such as PC/PLC through corresponding field networks. In case of Ezi-SERVOⅡ Plus-E products, motion library(DLL) for Windows 7/8/10 can be provided.

6. Fast Response

Similar to conventional stepping motors, Ezi-SERVO instantly synchronizes with command pulses providing fast positional response. Ezi-SERVO is the optimum choice when zero-speed stability and rapid motions within a short distance are required. Traditional servo motor systems have a natural delay called settling time between the command input signals and the resultant motion because of the constant monitoring of the current position.

7. No Gain Tuning

In general servo systems, gain adjustment is essential for performance improvement. It takes a lot of time to adjust the gain and it causes problems depending on the type of load. However Ezi-SERVO is a servo system that does not require gain adjustment by using characteristics of stepping motor. Ezi-Robo HG is a Tuning Free Actuator that does not need gain adjustment even in sudden load change or rapid acceleration because it is driven by Ezi-SERVO.

8. No Hunting

Since Ezi-SERVO utilizes the characteristics of the stepping motor, there is no hunting problem in general servo system. Therefore hunting does not occur because it stops completely after motor stopping.