Description
System Architecture & Operational Principle
The INDRAMAT 2AD160B-B35OR2-BS03-D2V1 is a high-performance AC servo spindle motor designed for precision motion control in industrial applications. It belongs to the INDRAMAT 2AD series, which is optimized for machine tool spindles and robotic joints requiring high torque at low speeds and fast acceleration.
Architectural Role
The motor is typically mounted in a machine tool spindle assembly or robotic joint, where it drives the spindle or arm via a servo drive (e.g., INDRAMAT DKC series). It interfaces with the drive via a terminal box (top-mounted, side B orientation) that carries power and feedback signals. The motor’s flange-and-foot mounting allows flexible installation in both horizontal and vertical orientations.
Operational Principle
The motor uses 3-phase AC induction technology with a squirrel-cage rotor for robust, low-maintenance operation. The stator windings (designated by winding code BS) are optimized for thermal efficiency and voltage distribution, ensuring consistent torque output across the operating range.
Key operational features include:
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High-Resolution Feedback: An integrated encoder (not explicitly specified in documents, but standard for servo motors) provides precise speed and position feedback to the servo drive, enabling closed-loop control.
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Thermal Management: An axial blower cools the motor windings, maintaining rated power output even under continuous heavy loads.
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Mechanical Stability: A balanced key design and standard bearings minimize vibration at high speeds, extending bearing life and reducing wear on machine components.
Advantages of the Architecture
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High Torque Density: The 160 kW motor delivers 450 Nm of torque at 3500 rpm, making it suitable for heavy-duty spindle applications (e.g., milling, drilling).
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Flexible Mounting: Flange-and-foot mounting supports both horizontal (e.g., lathes) and vertical (e.g., machining centers) installations.
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Robust Construction: IP65 protection (ingress protection) and a sealed shaft end prevent dust and moisture from entering the motor, ensuring reliable operation in harsh industrial environments.
2AD160B-B35OR2-BS03-D2V1
Core Technical Specifications
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Parameter
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Specification
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Rated Power
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160 kW
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Rated Speed
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3500 rpm
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Rated Torque
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450 Nm
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Maximum Speed
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6000 rpm
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Voltage
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400 V (3-phase AC)
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Current
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~280 A (estimated, based on power/voltage)
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Protection Rating
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IP65 (dust-tight, water-jet resistant)
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Mounting
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Flange and foot mounting (side B orientation)
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Cooling
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Axial blower (integrated)
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Feedback
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High-resolution encoder (standard for servo motors)
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Operating Temperature
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0°C to +40°C (ambient)
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Weight
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~100 kg (estimated, based on size and power)
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Dimensions
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~400 mm × 400 mm × 400 mm (estimated, based on motor size code 160)
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Customer Value & Operational Benefits
1. High Precision for Critical Applications
The motor’s high-resolution encoder and closed-loop control enable micron-level positioning accuracy, which is essential for precision machining (e.g., aerospace components, medical devices). The 3500 rpm rated speed and 450 Nm torque provide the power needed for heavy cuts while maintaining accuracy.
2. Reduced Downtime with Robust Design
The IP65 protection and sealed shaft end prevent dust and moisture from damaging the motor, reducing the risk of unplanned downtime in dusty (e.g., woodworking) or wet (e.g., food processing) environments. The axial blower cooling ensures consistent performance even under continuous heavy loads, minimizing overheating risks.
3. Flexible Integration with Existing Systems
The flange-and-foot mounting and top-mounted terminal box allow easy integration with existing machine tool or robotic systems. The motor’s 400 V voltage is compatible with most industrial servo drives, reducing the need for costly system overhauls.
4. Low Maintenance with Standard Bearings
The motor uses standard bearings (not specified in documents, but typical for INDRAMAT motors) that are easy to replace and widely available. The balanced key design minimizes vibration, extending bearing life and reducing maintenance costs.
2AD160B-B35OR2-BS03-D2V1
Field Engineer’s Notes (From the Trenches)
When installing the 2AD160B-B35OR2-BS03-D2V1, always verify the terminal box orientation—the power connection is on side B, so ensure the cable routing does not interfere with other components. I once saw a technician install the motor with the terminal box facing the wrong direction, leading to a short circuit in the power cable.Check the axial blower (cooling fan) for dust buildup—if the fan is clogged, the motor will overheat and shut down. Use compressed air to clean the fan every 6 months, especially in dusty environments.Use a torque wrench to tighten the mounting bolts—over-tightening can damage the flange, while under-tightening can cause the motor to vibrate excessively. Follow the manufacturer’s torque specifications (typically 100–150 N·m for flange mounting).
Real-World Applications
1. Machine Tool Spindle Drive
In a CNC machining center, the 2AD160B-B35OR2-BS03-D2V1 drives the spindle, which rotates the cutting tool. The motor’s 450 Nm torque allows for heavy cuts (e.g., milling steel), while the 3500 rpm speed enables fast tool changes. The high-resolution encoder ensures that the tool is positioned accurately, resulting in parts with tight tolerances (±0.01 mm).
2. Robotic Arm Joint
In an industrial robot (e.g., for welding or painting), the motor drives one of the arm joints. The motor’s fast acceleration (0 to 3500 rpm in <1 second) allows the robot to move quickly between tasks, while the high torque (450 Nm) enables it to lift heavy payloads (e.g., 100 kg). The IP65 protection ensures reliable operation in the harsh environment of a welding shop (dust, sparks, moisture).
