A stepper motor with a frame size of 13 mm. This contributes to making medical devices, measuring instruments, and other equipment even smaller and lighter.

Standard Type
Harmonic Geared Type
AAA Battery
[NEW] Standard Type With Encoder
[NEW] Harmonic Geared Type With Encoder

 

 

The Same Length as an AAA Battery and Mass Only 21 to 39 g

Motor Type	Length (L)	Mass	Frame Size (M)
Standard Type	30.5 mm	21 g	13 mm
Harmonic Geared Type	41.5 mm	33 g
Standard Type With Encoder	46 mm	27 g
Harmonic Geared Type With Encoder	57 mm	39 g
AAA Battery	44.5 mm	Approx. 11 g	φ10.5 mm

Encoder Main Specifications

It is equipped with a magnetic encoder that is resistant to dust, condensation, and vibration. Despite its extremely compact size with a frame size of only 13 mm, it enables high accuracy positioning and the detection of position data via the encoder.

Standard Type with Encoder	Type Standard Type With Encoder Harmonic Geared Type With Encoder Gear Ratio － 30 50 100 Resolution 200/400/1000 P/R Angular Accuracy ±0.36° Output Signals Phase A, Phase B, Phase Z (3ch) Output Circuit Type* Voltage Output/Open-Collector Output Encoder Operating Temperature −10 to 100°C
Harmonic Geared Type with Encoder

* Line driver output not offered

 

Motor Position Detection is Possible

By comparing the command position with the feedback position, it is possible to detect abnormalities such as loss of synchronization. Because the detection accuracy (±0.36°) is guaranteed, it can be used safely for position detection purposes.

Return-to-Home is Possible Without Adjusting the Sensor’s Position

The step "0" position, encoder, and Z-phase signal position of the motor are adjusted by Oriental Motor and shipped assembled. It can be used as a home sensor (a sensor mounted on the motor shaft that detects the home position within a single rotation).

This makes it easier to use the Z-phase output signal and TIM output signal* together to improve the repeatability of the return-to-home function.

*The signal output from the driver for each step "0" position (stable point). This signal outputs every 7.2° rotations of the motor output shaft from the home.

When the Timing of Z-phase Output is Not Fixed		When the Timing of Z-phase Output is Fixed New Encoder (Magnetic type)
Since the output timing of the Z-phase signal is not fixed, it is difficult to use it as a substitute for the home sensor, and it is also difficult to use it together with the TIM signal.		It outputs Z-phase signals with a width of ±3.6° centered on the step "0" position (stable point).

Examples of Use Index Table
By using this in place of home sensors such as photomicro sensors, you can achieve highly repeatable return-to-home.

When Not Using a Motor With Encoder		When Using a Motor With Encoder
The sensor position must be adjusted so that the external sensor signal and the TIM signal are output simultaneously.		The Z signal and the TIM signal have been adjusted to be output simultaneously.

Improved repeatability ensures more precise positioning operation of test tubes, preventing issues such as missed grips or collisions when a robotic hand grasps them.

High Torque

20 kg Load Can Be Transported

[Selection Conditions] Speed: 10 mm/s Acceleration/deceleration time: 0.1 s Screw Diameter: 8 mm Lead: 10 mm

 

Despite being small with a frame size of 13 mm, this stepper motor has the same torque and strength as the standard type with a mounting angle of 28 mm. It’s suitable for applications requiring high torque in limited space.

Frame Size mm	Mass g	Gear Ratio	Maximum Holding Torque N·m	Radial Load N	Axial Load N
13	33	100	0.15	28	40
28	200	-	0.19	25	5

Examples of Use Desktop Dispensers
By using the harmonic geared type, two more syringes can be added to the same workspace, doubling throughput.

Desktop Dispensers

Standard Type Frame Size 28 mm	Harmonic Geared Type Frame Size 13 mm

High Accuracy

Due to non-backlash, the output shaft moves and stops with very high accuracy relative to the motor command position. It is suitable for applications and mechanisms that require precise positioning and stopping at specific distances or locations, such as in the medical and semiconductor industries.

• Lost Motion [arcmin]:
  1.5 (0.025°) or less (±2 mN·m)
• Angular Transmission Accuracy [arcmin]:
  10 (0.167°) or less

High Resolution

Gear ratios of 30, 50, and 100 are available. The lineup of high gear ratio products enables precise movements in applications such as precision stages.

Gear Ratio	Basic Step Angle
30	0.06°
50	0.036°
100	0.018°

 

Flat Torque Characteristics up to High Speeds - Standard Type

It is suitable for applications requiring long positioning distances, such as ball screw mechanisms, and for applications where motors are operated at high speeds.

Speed - Torque Characteristics (Reference values) fs: Maximum Starting Frequency

Motor: PKP203D06A2 (Single shaft) / PKP203D06B2 (Double shaft)

It is suitable for applications requiring compact, high accuracy positioning, such as semiconductors, medical devices, robotics, humanoid hands, and animatronics.

Precision Stages	SIM Transfer Process	Desktop Automated Culture Equipment
Desktop Dispensers	Robotic Hands	Optical Mirrors, Lens Drive