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New Released Products
16-12-2015
DG II Series with Built-in AZ Series
The DG Series integrated hollow rotary tables and stepper motor product lineup now includes models with built-in AZ Series products. The battery-free absolute system positioning contributes to improved productivity and cost reduction.


Integrated Product

DGII Series is integrated product that combines a hollow rotary table and a stepping motor. Actuator inside serves as a reduction gear structure ( reduction ratio 18 ) , it can be a high output drive.

Simplified Design

Tables and arms can be installed directly onto the output table. This saves the hassle and cost of designing an installation mechanism, arranging necessary mechanism parts, adjusting the belt tension, etc., when mechanical components such as a belt and pulley are used for installation.

High Load and High Rigidity

The standard type uses a cross-roller bearing on the output table bearing, which allows for both high load and high rigidity.
● Maximum Permissible Axial Load 4000 N
● Maximum Permissible Moment 100 N·m
<Example Operation>
Product Name : DG200R-AZAC-1
Power-Supply Input : 230 VAC
Load Mass 91 kg (6 load pieces + table)
: Load 10 kg/piece × 6 pieces
: Table 31 kg
(Diameter 500 mm, thickness 20 mm, iron)
Overhang Distance : 160 mm
Installation Direction : Horizontal

● High Rigidity
[Load Moment] When a 10 kg load is placed 160 mm from the center of the table, the moment is 15.7 NEm. 10 kg ~ gm/s2 ~ 0.16 m 15.7 NEm The permissible moment of the DG200R is 100 NEm, so this is within the permissible value. œ High Rigidity [Axial Load] The axial load is: table + load (31 kg + 10 kg) ~ gm/s2 402 N The permissible axial load of the DG200R is 4000 N, so this is within the permissible value.


Relationship Between Load Moment and Displacement when Distance L=200 mm from Center of Table The larger the frame size, the received permissible moment increases, but the displacement caused by the load moment decreases.

Quick Positioning through Agile Responsiveness

With stepper motors, short distance positioning is carried out in a short period of time. Stepper motors are operated synchronously with pulse commands, and while they are compact, they still generate high torque and offer excellent acceleration performance and response.

<Example Operation>
Product Name : DG200R-AZAC-1
Power-Supply Input : 230 VAC
Load Mass 91 kg (6 load pieces + table) : Load 10 kg/piece × 6 pieces :
Table 31 kg (Diameter 500 mm, thickness 20 mm, iron)
Installation Direction : Horizontal
Traveling Amount : 60°
Total inertia of table and load = 2633 × 10-3 kg·m2
● Quick Positioning
With the DG200R, 60˚ rotation of a total mass of 91 kg is
possible in 0.59 seconds.

Low Vibration Even at Low Speed

Thanks to the microstep drive system and smooth drive function✽ of the stepper motor, resolution can be improved without mechanical elements such as a speed reduction mechanism. As a result, speed fluctuation is minimal even at low speeds, leading to improved stability.
✽About the Smooth Drive Function
The smooth drive function automatically microsteps based on the same traveling amount and traveling speed used in the full step mode, without changing the pulse input settings.

Alarm Signal Output in Case of Abnormality

If a continuous overload is applied, an alarm signal is output. Also, when the positioning is completed, a signal is output. This provides high reliability.

No Tuning Required

Because it is normally operated with open loop control, even when the load fluctuates, no tuning is needed to obtain movement exactly as set.

Maintains Stop Position Without Hunting

Thanks to the normally open loop control, there is no hunting, the minute shaft movements that occur during stopping. Because the stop location is securely maintained, it is best suited for applications that undergo vibration during stops.