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- MPL-A320H-SK72AA
- Servo Motor
- USA
- 100 mm
- 3.7 kg
- Xiamen, China
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Product Overview
The Allen Bradley MPL-A320H-SK72AA Servo Motor is a high-performance Kinetix MP-Series MPL low-inertia brushless AC servo motor designed for precision industrial motion control applications requiring fast response, accurate positioning, and reliable continuous-duty operation. As a member of the Rockwell Automation MP-Series MPL family, this servo motor is engineered for seamless integration with Kinetix servo drives, delivering precise closed-loop control of position, speed, and torque across a wide range of automated machinery.
The SK72AA configuration features a single-turn high-resolution absolute encoder, a SpeedTEC right-angle 180° rotatable DIN connector, a keyless shaft extension, and no holding brake. The keyless shaft design provides high concentricity and reliable torque transmission when used with precision locking assemblies, making it suitable for high-performance motion systems. The motor belongs to the 230 V AC MP-Series MPL family, features a 100 mm frame size, and is rated for a maximum speed of 3500 rpm.
Featuring a 100 mm frame size and an approximate weight of 3.7 kg, the MPL-A320H-SK72AA combines compact dimensions with excellent power density. Its low-inertia rotor enables rapid acceleration and deceleration while maintaining outstanding positioning repeatability and smooth torque output.
Typical applications include packaging machinery, robotics, CNC machining centers, semiconductor manufacturing equipment, electronic assembly systems, pharmaceutical production lines, material handling equipment, printing machinery, and automated production cells.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model | MPL-A320H-SK72AA |
| Product Series | Kinetix MP-Series MPL |
| Product Type | AC Servo Motor |
| Motor Type | Low-Inertia Permanent Magnet Brushless Servo Motor |
| Voltage Class | 230 VAC |
| Frame Size | 100 mm |
| Rated Maximum Speed | 3500 rpm |
| Feedback Device | Single-turn High-Resolution Absolute Encoder |
| Brake | No Brake |
| Shaft Type | Keyless Shaft Extension |
| Connector Type | SpeedTEC Right-Angle 180° Rotatable DIN Connector |
| Mounting Standard | IEC Metric Flange |
| Cooling Method | Natural Convection |
| Weight | Approximately 3.7 kg |
Function and Working Principle
The MPL-A320H-SK72AA converts electrical energy supplied by a compatible Kinetix servo drive into highly accurate rotary motion while continuously transmitting single-turn absolute encoder feedback for precise closed-loop control.
Typical Motion Control Architecture
Motion Controller
↓
Kinetix Servo Drive
↓
MPL-A320H-SK72AA Servo Motor
↓
Keyless Coupling
↓
Machine Axis
↓
Industrial Equipment
The integrated single-turn absolute encoder continuously reports shaft position to the servo drive, enabling accurate regulation of position, speed, and torque. The keyless shaft extension improves torque transmission accuracy, minimizes backlash, and simplifies coupling installation for precision mechanical systems.
Primary operating functions include:
- Precision positioning
- Closed-loop speed regulation
- Dynamic torque control
- High-speed indexing
- Rapid acceleration and deceleration
- Smooth low-speed operation
- Single-turn absolute position feedback
- Electronic cam synchronization
- Coordinated multi-axis motion
- High-precision keyless shaft power transmission
The low-inertia rotor minimizes settling time while improving machine productivity and positioning accuracy.
Role in Industrial Control Systems
Within industrial automation systems, the MPL-A320H-SK72AA serves as the precision motion actuator responsible for executing positioning commands generated by advanced motion controllers.
Typical automation architecture:
ControlLogix PLC
↓
Motion Control Module
↓
Kinetix Servo Drive
↓
MPL-A320H-SK72AA Servo Motor
↓
Precision Keyless Coupling
↓
Machine Axis
↓
Industrial Equipment
The servo motor delivers highly accurate and repeatable motion, enabling synchronized machine operation, high production efficiency, and reliable process control.
Industrial Applications
Packaging Machinery
Typical applications include:
- Cartoning machines
- Filling equipment
- Wrapping machines
- Labeling systems
- Pick-and-place equipment
Robotics
Suitable for:
- Industrial robot arms
- SCARA robots
- Delta robots
- Six-axis robotic systems
- Automated assembly cells
CNC Machinery
Frequently installed in:
- CNC machining centers
- Milling machines
- Precision lathes
- Laser cutting systems
- Grinding equipment
Semiconductor and Electronics Manufacturing
Ideal for:
- Wafer handling systems
- PCB assembly equipment
- Precision positioning systems
- Inspection machinery
- Cleanroom automation
Material Handling
Common applications include:
- Conveyor positioning
- Warehouse automation
- Automated storage systems
- Sorting equipment
- Palletizing machinery
Pharmaceutical and Food Processing
Widely used in:
- Packaging lines
- Filling systems
- Inspection equipment
- Conveyor automation
- Precision production machinery
Installation and System Integration
Before installation, engineers should verify:
- Kinetix servo drive compatibility
- Mechanical mounting dimensions
- Keyless coupling compatibility
- Shaft alignment
- Encoder cable connections
- Motor power wiring
- Protective grounding
- Mechanical load capacity
- Environmental conditions
- Motion controller configuration
Recommended Installation Procedure
- Disconnect system power.
- Securely mount the servo motor.
- Install the keyless locking assembly or coupling.
- Align the motor shaft with the driven mechanism.
- Connect the motor power cable.
- Connect the encoder feedback cable.
- Verify protective grounding.
- Restore system power.
- Configure motor parameters.
- Perform motor identification.
- Test motor rotation.
- Tune servo parameters.
- Verify positioning accuracy.
- Perform functional testing.
- Complete commissioning documentation.
Proper installation maximizes positioning accuracy and extends motor service life.
Compatible System Components
| Component | Function |
|---|---|
| Allen Bradley Kinetix Servo Drive | Servo motor control |
| ControlLogix PLC | Motion controller |
| CompactLogix PLC | Machine automation |
| MPL-A320H-SK72AA | Precision servo motor |
| Motion Control Module | Multi-axis synchronization |
| EtherNet/IP Network | Industrial communication |
| PanelView HMI | Operator interface |
| Keyless Locking Assembly | Torque transmission |
| Ball Screw Assembly | Linear positioning |
| Industrial Power Supply | System power |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| MPL-A320H-SK72AA | AC Servo Motor | Single-turn absolute encoder with keyless shaft |
| MPL-A320H-SK74AA | AC Servo Motor | Single-turn absolute encoder, keyless shaft, holding brake |
| MPL-A320H-SJ72AA | AC Servo Motor | Single-turn absolute encoder with keyed shaft |
| MPL-A320H-MK72AA | AC Servo Motor | Multi-turn absolute encoder with keyless shaft |
| Kinetix VP Series | AC Servo Motor | Advanced industrial motion control |
Key Advantages
- Compact 100 mm frame size
- Low-inertia rotor for rapid dynamic response
- Rated maximum speed of 3500 rpm
- Integrated single-turn high-resolution absolute encoder
- Precision keyless shaft extension
- SpeedTEC quick-connect 180° rotatable connector
- High positioning accuracy
- Seamless integration with Allen Bradley Kinetix servo drives
- Rugged industrial construction
- Suitable for continuous industrial operation
- Approximate weight 3.7 kg
Technical FAQs
What is the Allen Bradley MPL-A320H-SK72AA?
The MPL-A320H-SK72AA is a Kinetix MP-Series MPL low-inertia AC servo motor equipped with a single-turn high-resolution absolute encoder and a keyless shaft extension for precision industrial motion control.
What is its primary function?
Its primary function is to provide accurate closed-loop control of position, speed, and torque for industrial automation equipment.
What is the frame size?
The motor features a 100 mm frame size.
What is the approximate weight?
The servo motor weighs approximately 3.7 kg.
Does this model include a holding brake?
No. The MPL-A320H-SK72AA is supplied without a holding brake.
What is the advantage of a keyless shaft?
A keyless shaft provides excellent torque transmission, improved concentricity, reduced backlash, and simplified installation when used with precision locking assemblies.
Which drive systems are compatible?
It is designed for use with compatible Allen Bradley Kinetix servo drives and Logix-based motion control systems.
Which industries commonly use this servo motor?
Typical industries include packaging, robotics, semiconductor manufacturing, CNC machining, pharmaceutical production, food processing, material handling, electronics manufacturing, and automated assembly.
What type of feedback does the motor use?
The motor uses a single-turn high-resolution absolute encoder, providing immediate position feedback within one mechanical revolution.
Where is the servo motor typically installed?
It is commonly installed on robotic axes, CNC machines, conveyor positioning systems, packaging equipment, semiconductor machinery, and precision manufacturing equipment.
Conclusion
The Allen Bradley MPL-A320H-SK72AA Servo Motor is a compact, high-performance motion solution engineered for demanding industrial automation applications. Featuring a 100 mm frame size, a low-inertia rotor, a single-turn high-resolution absolute encoder, a keyless shaft extension, and a SpeedTEC quick-connect interface, it delivers exceptional positioning accuracy, rapid dynamic response, and dependable long-term operation.
With an approximate weight of 3.7 kg, the MPL-A320H-SK72AA integrates easily into advanced machine designs while providing reliable precision motion control. When combined with compatible Allen Bradley Kinetix servo drives, ControlLogix PLCs, motion controllers, and EtherNet/IP communication systems, it enhances machine productivity, improves positioning performance, and supports long-term industrial reliability.