Fastech EZI-SERVO2-CL-20M-F

<Delivery Notice>

Fastec products are made to order, which may require an additional 2 to 4 weeks for production.

For this reason, cancellations or modifications are not possible once an order has been placed.

We will provide you with the confirmed production and delivery schedule after the order has been placed (manufacturing starts)

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The EZI-SERVOII-CL-20M-F is the ultra-miniature "Medium" version of the NEMA 8 (20mm) closed-loop stepper motor series. With a body length of only 28mm, it is designed for the most space-critical applications where even NEMA 11 motors are too large. Despite its tiny size, it features a built-in "F" Type (4,000 PPR) optical encoder, providing precise closed-loop control for handheld instruments, micro-robotics, and optical adjusters.

Key Features

• Ultra-Miniature Footprint: Featuring a 20mm flange and a short 28mm length, this is the smallest motor in the series, enabling automation in confined spaces previously thought impossible.

• Optimized Resolution: Equipped with the "F" Type encoder (4,000 pulses/revolution). This resolution provides 16,000 steps per revolution (in 4x mode), offering exceptional precision relative to the motor's size.

• Closed Loop System: Prevents loss of synchronization (step-out) by monitoring position in real-time, ensuring the motor reaches its target even under load fluctuations.

• No Hunting: Holds position perfectly steady without oscillation, which is critical for high-precision optical or sensor alignment tasks.

• Efficient Drive: Utilizes the same advanced vector control as larger models to maximize torque and minimize heat, even in this miniature form factor.

Technical Specifications 

Model : EZI-SERVO2-CL-20M-F

Motor Flange Size : 20 mm (NEMA 8)

Motor Length : Medium Type (Approx. 28 mm)

Input Voltage : 24 VDC ±10%

Current per Phase : 0.5 A

Holding Torque : Approx. 0.016 N·m

Encoder Resolution : 4,000 ppr ("F" Type)

Drive Method : Bi-polar constant current pentagon drive

Control Method : Closed-loop control (CC-Link compatible)

Operating Temp : 0 ~ 50°C (No freezing)

Weight (Motor) : Approx. 0.08 kg (80 g)