SEW-EURODRIVE DFT71D4 Gear Motor

 

• General Overview

• Compact, high-efficiency gear motor for industrial automation and material handling.

• Combines SEW-EURODRIVE’s durable helical gear unit with a three-phase AC motor.

• Renowned for reliability, smooth operation, and energy efficiency.

---

• Mechanical Design

• Gear type: Helical gear unit (F series — parallel shaft helical gearbox).

• Mounting options: Foot-mounted, flange-mounted, or shaft-mounted versions.

• Housing: High-strength cast iron for durability and vibration resistance.

• Lubrication: Factory-filled with long-life lubricant for low maintenance.

• Cooling: Surface-cooled design with external fan (TEFC).

---

• Motor Specifications

• Model: DFT71D4.

• Motor type: 3-phase AC asynchronous motor.

• Frame size: 71 (IEC standard).

• Power rating: Approx. 0.37 kW (½ HP).

• Poles: 4-pole design.

• Speed: ~1,400 rpm at 50 Hz (synchronous 1,500 rpm).

• Voltage: Standard 230/400 V ±10%, 50 Hz (optional 460 V, 60 Hz).

• Efficiency class: IE1 or IE2 (depending on configuration).

• Insulation class: F.

• Protection class: IP55 (standard).

---

• Gearbox Performance

• Gear ratios: Typically from 3.4 : 1 up to over 250 : 1.

• Output speed: Adjustable from ~5 rpm to 400 rpm depending on ratio.

• Output torque: Up to approximately 200 Nm (varies with ratio).

• Orientation: Parallel shaft arrangement for compact installation.

---

• Features and Benefits

• High efficiency and low noise.

• Robust construction for continuous duty (S1).

• Modular design for easy integration and customization.

• Low maintenance and long service life.

• Suitable for conveyors, mixers, packaging, and automation systems.

---

• Options and Accessories

• Brake motor option (BE..).

• Encoder for speed feedback.

• Thermal protection (PTC thermistor).

• Special paints or coatings for harsh environments.

• Mounting kits and shaft configuration variants.

---

• Typical Applications

• Conveyor systems.

• Material handling equipment.

• Food and beverage machinery.

• Packaging and labeling lines.

• Small industrial and automation drives.