Autonics A1K-S543W 5-Phase Dual Shaft Stepper Motor

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If this item is out of stock, the lead time may take up to 2 weeks. We will contact you individually with a status update after your order is placed.

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The Autonics A1K-S543W is the most compact 5-phase stepper motor in the 42mm series featuring a Dual Shaft (W) configuration. Designed with a 42mm frame size, it delivers a maximum stop torque of 1.3 kgf·cm (0.13 N·m). This "S" type model operates at a rated current of 0.75 A/Phase, making it an extremely energy-efficient choice for small-scale precision equipment. The dual shaft design enhances versatility by allowing the attachment of auxiliary devices such as vibration dampers, encoders, or manual handwheels to the rear shaft, making it ideal for applications where space is limited but rear-shaft functionality is required.

Key Features

• Compact Torque Output: Delivers a maximum stop torque of 1.3 kgf·cm (0.13 N·m), providing precise holding force in a small 42mm footprint.

• Dual Shaft Design (W): Equipped with shafts extending from both the front and rear, enabling the connection of accessories like dampers or encoders.

• Rated Current 0.75 A/Phase: Designed for 0.75 A/Phase operation ("S" Type), compatible with standard drivers for 42mm motors.

• Standard 42mm Frame: The 42mm square flange is compatible with NEMA 17 mounting standards, suitable for compact machinery.

• Precision 5-Phase Control: Supports a basic step angle of 0.72° (Full step) and 0.36° (Half step) for smooth and accurate positioning.

Technical Specifications

• Model: A1K-S543W

• Frame Size: 42 mm

• Shaft Type: Dual Shaft (W)

• Max. Stop Torque: 1.3 kgf·cm (0.13 N·m)

• Rated Current: 0.75 A/Phase (S Type)

• Rotor Inertia: 35 x 10⁻⁷ kg·m²

• Basic Step Angle: 0.72° / 0.36°

• Unit Weight: Approx. 0.23 kg

<Motor Specification>