Three-phase 57 Series (1.2°) Closed-loop Stepper Motor

Product Overview

Three-phase 57 series closed-loop stepper motor, selected with high-quality raw materials and high-grade permanent magnet silicon steel sheets, equipped with a 1000-line high-precision encoder, completely overcoming the step loss problem of open-loop stepper motors. It significantly improves the motor's high-speed performance, reduces motor heating and vibration, enhances machining speed and accuracy, and lowers machine power consumption. It facilitates the upgrade of traditional stepper drive solutions, with cost reductions exceeding 50% compared to servo motors. Motor length ranges from 77mm to 123mm, torque range: 1N.m to 3N.m, motor shaft diameter 8mm.

Features

Motor Type: Three-phase closed-loop stepper motor Step Angle: 1.2° Frame Angle: 57 Holding Torque: 1.0~3.0 N.m Rated Current: 3.5~4.0 A Encoder: Built-in 1000-line encoder

Product Overview Supporting Products Data Download

Technical Parameters

Model	Step Angle (°)	Body Length (mm)	Holding Torque (N.m)	Phase Current (A)	Rotational Inertia (g.cm²)	Motor Weight (Kg)	Encoder Line Count (PPR)
LC57H355	1.2	77	1.0	3.5	300	1.0	1000
LC57H380	1.2	102	2.0	3.5	500	1.4	1000
LC57H3100	1.2	123	3.0	4.0	700	1.8	1000

The above are representative products only and can be customized according to customer requirements!

Outline Dimensions and Motor Wiring Diagram (Unit: mm)

Motor Shaft Output Description

Model	Shaft Diameter D (mm)	Shaft Extension (mm)	Shaft Length (mm)
LC57H355	Φ8	Flat 0.5x15	21
LC57H380	Φ8	Flat 0.5x15	21
LC57H3100	Φ8	Flat 0.5x15	21

Main Application Areas

Suitable for various motion control automation equipment and instruments, such as electronic processing and inspection, semiconductor packaging, laser cutting and welding, laser typesetting, packaging machinery, engraving machines, marking machines, cutting machines, garment plotters, CNC machine tools, automated assembly equipment, etc. It is the preferred choice for users seeking low noise, superior high-speed performance, and competitive cost-effectiveness.

LCDA357H Three-phase 57 Closed-loop Stepper Driver

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Model

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3 Phase 57 closed-loop motor

Closed-loop stepper motor (3-phase)

Stepper Motor Series

PDF Drawing

Data Download

LC57H355 Floor Plan