Fastech EZI-SERVO2-CL-42L-A

<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-A is the high-torque model in the NEMA 17 (42mm) closed-loop stepper motor series. The "L" (Long) designation signifies that it has the longest magnetic stack in its class, delivering the maximum possible holding torque (approx. 0.44 N·m) within the compact 42mm footprint. It is equipped with the standard "A" Type (10,000 PPR) optical encoder, making it the reliable standard choice for precision instruments, medical devices, and 3D printers.

Key Features

• Maximum Torque in Class: The Long stack design allows this motor to generate significantly more torque than the Short (S) or Medium (M) versions, handling heavier loads in small spaces.

• Standard High Resolution: Features the 10,000 PPR (Pulse Per Revolution) encoder, providing 40,000 steps per revolution (in 4x mode). This "A" type resolution is standard for most industrial controllers.

• Closed Loop Reliability: Continuously monitors the motor position to prevent step-out (loss of synchronization), ensuring accurate positioning even during rapid starts and stops.

• No Hunting: Unlike servo motors, this system holds its position perfectly stable without oscillation, essential for high-magnification optical inspection.

• High Response: The high torque-to-inertia ratio allows for fast acceleration and settling times.

Technical Specifications 

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

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 : 10,000 ppr ("A" 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