📘 DDK SAN3-40 / SAN3-40M Stepper Motor

The DDK SAN3-40 / SAN3-40M is a high-precision stepper motor engineered for industrial automation, robotics, and motion control applications. Known for its reliability, smooth operation, and compact design, this motor provides consistent performance in demanding environments. The SAN3-40 series delivers high torque at low speeds, making it suitable for applications requiring precise positioning and controlled motion, including CNC machines, automated assembly lines, and lab automation equipment.

These stepper motors are designed to minimize vibration and noise while providing high repeatability and long operational life. The SAN3-40M variant includes additional mounting and mechanical options for easier integration into various mechanical systems. Both models are compatible with standard stepper drivers, ensuring flexible implementation in new or retrofit projects.

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📊 Technical Datasheet

Parameter	Specification
⚙️ Motor Type	Permanent magnet stepper motor
🔌 Phase Configuration	2-phase, bipolar
📏 Step Angle	1.8° per step (200 steps/rev)
⚡ Rated Voltage	3.5 VDC
🔋 Rated Current	1.5 A per phase
🏷 Holding Torque	40 N·cm (approx.)
⏱ Detent Torque	1.2 N·cm
🌡 Operating Temperature	-20 °C to +50 °C
❄️ Storage Temperature	-40 °C to +80 °C
🏗 Mounting	Face-mount with standard flange
⚖️ Weight	Approx. 0.35 kg
🔧 Shaft Diameter	6.35 mm

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⚡ Features & Benefits

• 🔄 High precision stepping, ensuring accurate positioning
• 🌍 Low vibration and noise, ideal for sensitive machinery
• 🧩 Compact and robust design, suitable for tight spaces and industrial use
• 🛠 Long operational life, with maintenance-free performance
• 🔌 Standard driver compatibility, facilitating integration into existing systems

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📝 Application Notes

The DDK SAN3-40 and SAN3-40M are widely used in automation, robotics, CNC machinery, medical devices, and lab instrumentation. They provide reliable step-and-position control in systems where precision and repeatability are critical. The high holding torque ensures consistent operation under load, while the modular mounting options simplify installation in complex assemblies. These motors are ideal for applications where space constraints and low-noise operation are essential.

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