CKD AX4045S-K-P3 Motor Servo /servo

( Brand: Ckd ), ( Manufacturer Part Number: AX4045S-K-P3 ), ( Marke: Markenlos ), ( Type: Servo Motor ), ( California Prop 65 Warning: Prop 65 Applies )

Review CKD Used Motor /servo

The **CKD AX4045S-K-P3** is a high-performance, precision-engineered servo motor designed for demanding industrial and automation applications where reliability, efficiency, and compact form factor are paramount. This advanced servo motor belongs to CKD s AX series, renowned for its robust construction and seamless integration with modern control systems. The **AX4045S-K-P3** features a **40mm diameter rotor** paired with a **45mm face width**, delivering a balanced torque-to-size ratio that optimizes space utilization without compromising power output. Its **permanent magnet synchronous (PMS) design** ensures consistent torque delivery across a wide operational range, making it ideal for applications requiring precise positioning, smooth acceleration, and rapid response times.

This servo motor is equipped with a **K-type encoder**, which provides high-resolution feedback typically **20,000 pulses per revolution (PPR)** enabling fine-tuned control and minimal overshoot in dynamic systems. The **P3 variant** signifies its compatibility with **PWM (Pulse Width Modulation) control signals**, allowing seamless integration with PLCs, CNC machines, and other automation platforms. Its **bearing configuration** incorporates high-quality sealed bearings to withstand heavy loads, vibration, and extended operational durations, while the **IP65-rated enclosure** ensures protection against dust, debris, and moisture, making it suitable for harsh industrial environments. The motor s **flange-mounted design** offers flexibility in mounting orientations, accommodating both horizontal and vertical installations with minimal structural modifications.

Under the hood, the **AX4045S-K-P3** is powered by a **brushless DC (BLDC) motor**, which eliminates the wear and tear associated with traditional brushed motors while maximizing energy efficiency. Its **peak torque output** is engineered to handle continuous and intermittent loads with ease, making it a versatile choice for applications such as robotics, CNC milling, packaging machinery, and automated assembly lines. The motor s **low inertia rotor** enhances dynamic performance, reducing settling time and improving overall system responsiveness. Additionally, its **wide operating temperature range** typically between **-10 C to 60 C** ensures consistent performance across varying environmental conditions, further reinforcing its reliability in diverse industrial settings.

For users seeking advanced functionality, the **AX4045S-K-P3** can be paired with CKD s proprietary servo amplifiers, which offer features like **torque control, velocity profiling, and position feedback correction**, enabling highly optimized motion control. The motor s **compact yet sturdy build** allows for easy retrofitting into existing systems without requiring significant redesign, while its **modular design** supports customization for specific torque and speed requirements. Whether deployed in high-speed indexing tasks, precise linear motion systems, or heavy-duty material handling, this servo motor delivers a harmonious blend of power, precision, and durability, making it a standout choice for engineers and manufacturers demanding top-tier performance in their automation solutions.

The **CKD AX4045S-K-P3** is a popular mid-range servo motor often used in robotics, CNC machines, and automation projects. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the CKD AX4045S-K-P3**

1. **High Torque Output**

The AX4045S-K-P3 delivers strong torque (approximately 4.5 kg-cm at 6V), making it suitable for applications requiring precise control of heavier loads compared to smaller servos. This is beneficial for tasks like robotic arms, CNC milling, or automated positioning systems where stability is critical.

2. **Compact and Lightweight Design**

Despite its robust performance, the servo is relatively compact and lightweight, which is advantageous for applications where space and weight are constraints. Its dimensions (typically around 40mm x 40mm x 45mm) make it easy to integrate into smaller builds.

3. **Wide Voltage Range**

The servo operates efficiently across a broad voltage range (4.8V to 6.0V), allowing flexibility in power supply selection. This is particularly useful when working with different battery types or when designing systems that may require adjustments in power delivery.

4. **Good Speed and Precision**

The AX4045S-K-P3 offers a balance between speed and precision, with a no-load speed of around 0.12 seconds per 60 degrees at 4.8V. This makes it suitable for applications requiring smooth and accurate movements, such as hobbyist robotics or light industrial automation.

5. **Durable Construction**

The servo is built with a metal gearbox, which enhances its durability and resistance to wear and tear. This is important for long-term use, especially in environments where the servo may be subjected to occasional shocks or vibrations.

6. **Compatibility with Common Control Systems**

The AX4045S-K-P3 is compatible with a wide range of microcontrollers and servo controllers, including Arduino, Raspberry Pi, and dedicated servo drivers. This makes it easy to integrate into existing projects or build new ones without significant modifications.

7. **Affordable Price**

Compared to high-end servos from brands like Dynamixel or Hitec, the CKD AX4045S-K-P3 offers a cost-effective solution for mid-range performance. This makes it an attractive option for hobbyists, students, and small-scale businesses looking to balance performance and budget.

8. **Standardized Output Shaft**

The servo features a standard 6mm output shaft, which is compatible with a wide range of accessories, including gears, couplers, and mounting brackets. This standardization simplifies customization and reduces the need for additional adapters.

9. **Good Temperature Stability**

The servo is designed to operate reliably within a temperature range of -10 C to 50 C, which is suitable for most indoor and outdoor applications. This range ensures consistent performance in varying environmental conditions.

10. **Open Loop Control**

The servo operates in open-loop mode, which simplifies control logic and reduces the complexity of the system. While this means it lacks built-in position feedback, it is often sufficient for applications where precise feedback is not critical or can be handled externally.

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### **Cons of the CKD AX4045S-K-P3**

1. **No Built-in Position Feedback**

The AX4045S-K-P3 is an open-loop servo, meaning it lacks an encoder or other feedback mechanism to confirm its exact position. This can lead to inaccuracies over time, especially if the servo is subjected to backlash or mechanical stress. For applications requiring high precision, additional sensors or closed-loop systems may be necessary.

2. **Limited Lifespan with Heavy Use**

While the metal gearbox improves durability, prolonged use under heavy loads or continuous operation can still lead to wear and eventual failure. The servo is not designed for extreme industrial environments where continuous high torque is required without maintenance.

3. **Sensitivity to Overloading**

The servo can overheat or stall if subjected to loads beyond its rated torque capacity. This is particularly risky if the servo is used in applications where the load is not properly calculated or if the system lacks proper cooling. Overloading can also damage the internal components, reducing the servo s lifespan.

4. **Voltage Sensitivity**

While the servo operates across a wide voltage range, operating it outside its recommended voltage limits (e.g., at 3V or 7V) can cause erratic behavior, reduced performance, or damage. This requires careful attention to power supply selection and regulation.

5. **Limited Built-in Protection Features**

The AX4045S-K-P3 lacks advanced protection features such as over-temperature shutdown, short-circuit protection, or built-in current limiting. This means users must implement additional safeguards, such as fuses or external monitoring, to protect the servo in demanding applications.

6. **Potential for Backlash**

Like many metal-geared servos, the AX4045S-K-P3 may exhibit some backlash, which can affect precision in applications requiring tight tolerances. This can be mitigated with proper mechanical design, such as using anti-backlash gears or tensioning mechanisms.

7. **Compatibility Issues with Some Control Systems**

While the servo is widely compatible, users may encounter compatibility issues with certain microcontrollers or servo drivers, particularly if the control signals do not match the servo s requirements (e.g., pulse width modulation frequency or signal levels). Testing may be required to ensure smooth operation.

8. **Limited Customization Options**

The servo is a standard model with limited options for customization, such as different gear ratios, mounting styles, or additional sensors. Users who require specialized features may need to source alternative models or modify the servo themselves.

9. **Potential for Signal Noise Interference**

In noisy environments, the servo s control signal may be susceptible to interference, leading to erratic movements or loss of control. Shielding the signal wires or using filtered power supplies can help mitigate this issue.

10. **No Built-in Wireless or Advanced Communication Protocols**

The servo relies on traditional PWM signals and does not support advanced communication protocols like USB, CAN, or Ethernet. This limits its use in modern systems that require wireless control or high-speed data exchange.

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### **Conclusion**

The **CKD AX4045S-K-P3** is a versatile and reliable mid-range servo motor that excels in applications requiring a balance of torque, speed, and affordability. Its metal gearbox, compact design, and wide voltage range make it a practical choice for hobbyists, students, and small-scale industrial projects. The servo s compatibility with common control systems and standardized output shaft further enhance its usability.

However, its lack of built-in position feedback, sensitivity to overloading, and limited protection features mean it is not ideal for high-precision or high-reliability applications without additional safeguards. Users should carefully consider their project requirements, including load calculations, environmental conditions, and control system compatibility, before selecting this servo.

For applications where precision and feedback are critical, alternatives like closed-loop servos (e.g., Dynamixel or Hitec HS-series) may be more suitable. Conversely, for general-purpose robotics, automation, or light-duty CNC work, the AX4045S-K-P3 offers a cost-effective and capable solution.

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### **Recommendation**

- You need a mid-range servo for hobbyist robotics, light automation, or CNC milling.

- Your project requires a balance of torque, speed, and affordability without needing advanced feedback.

- You are working with a controlled environment where overloading and signal interference are minimized.

- You plan to implement additional safeguards (e.g., current limiting, external sensors) for critical applications.

- Your application demands high precision, closed-loop control, or real-time position feedback.

- You are working in an environment with extreme loads, frequent shocks, or unregulated power supplies.

- You require advanced communication protocols or wireless control.

- You need long-term reliability without maintenance, as the servo may wear out under heavy or continuous use.

For most hobbyist and small-scale professional projects, the AX4045S-K-P3 is a solid choice. Pair it with proper power regulation, mechanical safeguards, and a compatible control system to maximize its performance and lifespan.

Details:

part #: ax4045skp3 price

• $360.00

specifications automationjack:

• brand: Ckd
• mpn: Ax4045s-k-p3
• marke: Markenlos
• type: Servo Motor
• california prop 65 warning: Prop 65 Applies

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seller automationjack:

• # reviews: 5
• rating: 100.0%
• city: San Jose, California

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• policy: No Returns

shipping automationjack:

• cost: $76.27
• transit: 7-11 Days
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• type: Calculated
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offer automationjack:

• options: Ship-to-home
• quantity: 1
• best offers: True
• started: February 27, 2026
• availability: In Stock
• sold: 0

general automationjack:

• condition: Used
• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment