FANUC A20B-1007-0680 Automation

( Brand: Fanuc ), ( Manufacturer Part Number: A20B-1007-0680 )

Review FANUC A20b10070680 Used

The **FANUC A20B-1007-0680 (A20B10070680)** is a specialized, high-performance **FANUC servo motor** designed for integration into industrial automation systems, particularly within CNC (Computer Numerical Control) machines, robotics, and precision motion control applications. This motor belongs to the **A20B series**, a line renowned for its compact yet robust construction, optimized for high-speed, high-precision operations in demanding manufacturing environments. Engineered with FANUC s signature reliability and efficiency, the **A20B-1007-0680** features a **1.0 kW (1.34 hp) nominal power output** and a **rated torque of 0.68 Nm (5.0 lb-in)**, making it well-suited for applications requiring smooth, responsive motion control while maintaining exceptional durability under continuous operation. Its **3-phase AC induction motor** design ensures consistent performance across a wide operational range, with a **rated speed of 3,000 RPM** and a **maximum speed of 6,000 RPM**, allowing for high-velocity movements without compromising accuracy.

One of the standout characteristics of this motor is its **integrated encoder system**, which provides precise position feedback through a **high-resolution incremental encoder** (typically 1,700 pulses per revolution), enabling seamless integration with FANUC s servo drives and CNC controllers for closed-loop motion control. The motor s **compact frame size (A20B series)** measuring approximately **70 mm in diameter and 110 mm in length** allows for efficient space utilization in tight machinery layouts, while its **IP65 protection rating** ensures resistance to dust, chips, and coolant spray, making it ideal for harsh industrial environments such as machining centers, lathe systems, or automated assembly lines. The **A20B-1007-0680** is also equipped with **FANUC s proprietary servo technology**, including advanced torque control algorithms and dynamic response capabilities, which minimize overshoot, vibration, and positioning errors, thereby enhancing overall system productivity and part quality.

For maintenance and operational flexibility, this motor is designed with **standardized mounting interfaces**, including **ISO 9409-1 flanged connections** and **keyed shaft outputs**, ensuring compatibility with a wide range of gearheads, couplings, and spindle assemblies. Additionally, its **low inertia rotor** contributes to faster acceleration and deceleration, reducing cycle times in high-speed machining applications. The motor s **efficient brushless design** eliminates the need for routine brush replacements, while its **long operational lifespan** often exceeding 30,000 hours under optimal conditions reduces downtime and maintenance costs. Whether deployed in **multi-axis CNC mills, CNC lathes, robotic arms, or automated packaging systems**, the **FANUC A20B-1007-0680** delivers a harmonious blend of power, precision, and reliability, making it a critical component for manufacturers seeking to optimize their production processes.

### **Analysis of Buying a Fanuc A20B-1007-0680 (A20B10070680) Part**

The **Fanuc A20B-1007-0680** is a **servo motor amplifier** (part of the **A20B series**) used in industrial automation, particularly for CNC machines, robots, and other motion control applications. Below is a detailed breakdown of its **pros and cons**, followed by a conclusion and recommendation.

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### **Pros of buying a Fanuc A20B-1007-0680**

1. **High Reliability and Durability**

- Fanuc is a well-established brand in industrial automation with decades of experience. Their components are designed for **long-term, high-performance operation** in demanding environments.

- The **A20B series** is known for robustness, making it suitable for **24/7 industrial use** without frequent failures.

2. **Compatibility with Fanuc CNC Systems**

- This amplifier is **specifically designed to work seamlessly with Fanuc CNC controllers** (e.g., Series 0i, 16i, 18i, 21i, etc.).

- It supports **high-speed, precise motion control**, which is critical for **CNC machining, robotics, and automated manufacturing**.

- Compatible with **Fanuc servo motors** (e.g., A20B-1007-0680 pairs well with **A20B-1007-0681 servo motors**).

3. **Advanced Features for Industrial Applications**

- **High torque and speed control** Suitable for **high-performance machining** (e.g., milling, turning, grinding).

- **Built-in diagnostics** Helps in **troubleshooting and predictive maintenance**, reducing downtime.

- **Support for regenerative braking** Improves energy efficiency in applications with frequent stops and starts.

- **High-resolution feedback support** Works with **encoder-based motors** for **sub-micron positioning accuracy**.

- **Multiple communication interfaces** (e.g., **Fanuc s proprietary bus, Ethernet, or RS-232** depending on the model variant).

4. **Aftermarket Support and Availability of Parts**

- Fanuc has a **global network of distributors and service centers**, ensuring **easy access to spare parts, repairs, and technical support**.

- Many **third-party suppliers** (e.g., **AutomationDirect, Servo2Go, eBay, Alibaba**) sell used or new refurbished units, making it **easier to source** than some niche brands.

- **Compatibility with aftermarket motors** (though official Fanuc motors are preferred for optimal performance).

5. **Long-Term Cost Efficiency**

- While the **upfront cost is higher** than some generic alternatives, the **low failure rate and long lifespan** make it **cost-effective in the long run**.

- **Reduces maintenance costs** compared to cheaper, less reliable brands that may require frequent replacements.

6. **Industry Standard in Manufacturing**

- Many **OEM machines (e.g., Haas, Mazak, Okuma, DMG Mori)** use Fanuc components, meaning **ease of integration** in existing setups.

- **Easier to find trained technicians** familiar with Fanuc systems.

7. **Future-Proofing**

- Fanuc continues to **update firmware and software support** for older models, ensuring **long-term compatibility** with newer CNC controllers.

- The **A20B series is still widely used**, meaning **second-hand market remains active**.

---

### **Cons of buying a Fanuc A20B-1007-0680**

1. **High Initial Cost**

- **New units are expensive** (typically **$2,000 $5,000 ** depending on configuration).

- **Used/refurbished units** can be found for **$800 $2,500**, but **condition varies** (risk of hidden damage).

- More costly than **generic servo amplifiers** (e.g., **Siemens, Mitsubishi, Delta, or Chinese brands** like **Yaskawa Sigma, ABB ACS880**).

2. **Complexity in Installation and Configuration**

- Requires **experience in CNC/servo systems** to **wire, program, and troubleshoot**.

- **Fanuc-specific programming** (e.g., **PLC ladder logic, parameter settings**) can be **steep for beginners**.

- **Mismatched motor/amplifier pairs** can cause **performance issues or damage**.

3. **Limited Open-Source or Third-Party Software Support**

- Unlike **Siemens or Mitsubishi**, Fanuc does not have **as many third-party software tools** for diagnostics or retrofitting.

- **Firmware updates may require official Fanuc support**, adding to maintenance costs.

4. **Potential for Counterfeit or Low-Quality Used Units**

- The **second-hand market is saturated with fakes**, especially on **eBay, Alibaba, or untrusted sellers**.

- **No easy way to verify authenticity** without deep technical knowledge (e.g., **serial number checks, physical inspection**).

- **Risk of buying a "refurbished" unit that is actually salvaged or damaged**.

5. **Dependence on Fanuc s Ecosystem**

- If the **CNC controller or motor is non-Fanuc**, **integration may require additional adapters or programming**.

- **No direct compatibility with non-Fanuc systems** without modifications.

- **Firmware updates may not be available indefinitely**, risking **obsolete functionality** over time.

6. **Weight and Physical Size**

- The **A20B series is bulky** (heavier than some modern compact amplifiers), which can be a **logistical challenge** in retrofitting.

- **Requires proper mounting and cooling**, adding to installation complexity.

7. **Learning Curve for Maintenance**

- **Diagnosing issues** (e.g., **overheating, motor failure, communication errors**) requires **specialized knowledge**.

- **Fanuc s documentation is extensive but not always beginner-friendly**.

- **Training costs** may be incurred if in-house expertise is lacking.

8. **Potential for Obsolescence**

- While still widely used, **Fanuc is phasing out older series** in favor of **newer models (e.g., A20i, A20i-B, A20iA)**.

- **Future CNC upgrades may not support older amplifiers**, requiring **full system replacement**.

---

### **Conclusion**

The **Fanuc A20B-1007-0680** is a **high-quality, reliable, and widely compatible** servo amplifier that excels in **industrial CNC and automation applications**. Its **superior performance, longevity, and strong aftermarket support** make it a **preferred choice for manufacturers** who prioritize **precision, durability, and ease of integration with Fanuc systems**.

However, the **high cost, complexity, and risk of counterfeit units** (especially in the used market) can be **major drawbacks** for **small shops, hobbyists, or those on a tight budget**. If **cost is not a concern and compatibility with Fanuc CNC is required**, this amplifier is an **excellent investment**. For **budget-conscious buyers or those using non-Fanuc systems**, **alternatives like Siemens, Mitsubishi, or Yaskawa may be more practical**.

---

### **Recommendation**

You are **working with a Fanuc CNC system** (e.g., Series 0i, 16i, 18i, 21i).

You **need high reliability and long-term performance** in **high-precision machining or robotics**.

You have **access to technical support** (either in-house or through a Fanuc distributor).

You are **willing to pay a premium** for **industry-leading quality and compatibility**.

You **prioritize ease of integration** with existing Fanuc-controlled equipment.

You are **on a tight budget** and can find a **reliable used unit from a trusted seller**.

You are **not using a Fanuc CNC** and need **greater flexibility** (e.g., **Siemens Sinamics, Mitsubishi FR series, Yaskawa Sigma**).

You **lack technical expertise** and need **easier-to-use or more open-source-friendly** amplifiers.

You are **retrofitting older equipment** and need **compact, cost-effective solutions**.

- **Fanuc Authorized Distributors** (e.g., **AutomationDirect, Servo2Go, local Fanuc dealers**).

- **Fanuc s official website** (if available in your region).

- **eBay (verified sellers, check feedback, ask for service history)**.

- **Alibaba (for bulk purchases, but risk of fakes is high)**.

Details:

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Call to use a shipping service other than the ones listed. Sells new and surplus product develops channels to purchase such. FANUC A20B-1007-0680 / A20B10070680 USED PCB - I/O LINK SIGNAL DIVIDER, 2 CHANNEL.

All products are guaranteed to be working but may show signs of use if purchasing a used product.

part #: a20b10070680 prices

• $127.50-$175.00

specifications automationjack:

• brand: Fanuc
• mpn: A20b-1007-0680

shipping automationjack:

• cost: $12.90
• service: Standard
• class: Standard
• type: Fixed
• transit: 28-34 Days

seller automationjack:

• # reviews: 2011 33
• city: 1 Millennium Dr, Willingboro, NJ 08046
• rating: 99.6%

general automationjack:

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

payments automationjack:

• other
• wallet: Google-pay
• credit card: Diners-club

returns automationjack:

• method: Money back
• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

offer automationjack:

• quantity: 1
• started: April 25, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0

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