Fastech EZI-SERVO2-CL-42L-B

<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)

<Discription>

The EZI-SERVOII-CL-42L-B is a high-performance closed-loop stepper motor system designed for precision compact equipment. The "L" (Long) designation means this motor has the longest stack length in the 42mm series, delivering maximum holding torque (~0.44 N·m) while maintaining the compact NEMA 17 footprint. This specific model features the "B" Type (20,000 PPR) high-resolution encoder, making it ideal for medical devices, small XY stages, and optical instruments requiring extremely fine positioning.

Key Features

• Ultra-High Resolution: Equipped with a 20,000 PPR (Pulse Per Revolution) encoder, offering superior precision (0.018° per step) compared to standard 10,000 PPR models.

• High Torque in Compact Size: The Long stack design optimizes magnetic flux to provide the highest torque available in the 42mm frame size.

• Closed Loop System: Continuously monitors the motor position to prevent step-out (loss of synchronization), ensuring reliability even under variable loads.

• No Hunting: Stops precisely without oscillation, which is critical for vision inspection systems and high-magnification optical applications.

• Heat Reduction: The drive automatically controls the current based on the load, minimizing heat generation compared to open-loop steppers.

Technical Specifications 

Model : EZI-SERVO2-CL-42L-B

Motor Flange Size : 42 mm (NEMA 17)

Motor Length : Long Type (Approx. 59 ~ 60 mm)

Input Voltage : 24 VDC ±10%

Current per Phase : 1.2 A

Holding Torque : Approx. 0.44 N·m

Encoder Resolution : 20,000 ppr ("B" Type)

Drive Method : Bi-polar constant current pentagon drive

Control Method : Closed-loop control

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

Weight (Motor) : Approx. 0.35 kg