SMC CDNAWFN40-150-D Lock Cylinder Sensors 40MM LOT/2

( Brand: Smc ), ( Manufacturer Part Number: CDNAWFN40-150-D ), ( Part Type: Lock Cylinder Sensor ), ( Mounting Style: Foot/flange ), ( Stroke: 150mm ), ( Rod End Thread: 5/16 ), ( Port Size: G1/8 ), ( Position Sensors: Smc D-b64, Included ), ( Quantity: 2 ), ( Bore Diameter: 40mm ), ( Action Type: Double Acting ), ( Country Of Origin: Cylinder ), ( Lock Type: Bi-directional Air/spring Power Lock ), ( Rod Configuration: Double Rod ), ( Lock Unit Model: Cna40d-ua ), ( Fluid Medium: Compressed Air ), ( Sensor Connector: M8 ), ( Max Operating Pressure: 1.0 Mpa / 145 Psi )

Review SMC 40mm Bore Lock Cylinder Sensors Used Lot/2

The **SMC CDNAWFN40-150-D 40mm Lock Cylinder Sensor** is a high-performance, industrial-grade proximity sensor designed for precise and reliable detection in demanding automation and manufacturing environments. Part of SMC s robust **CDN series**, this sensor features a **40mm cylindrical housing** with a durable, corrosion-resistant construction, making it ideal for applications where compact size and rugged durability are essential. The **normally open (NO) or normally closed (NC) switching output** (depending on configuration) provides versatile control options, allowing seamless integration into PLCs, relays, or other automation systems. With an **operating range of 150mm (5.9 inches)**, this sensor delivers consistent and repeatable detection over a broad distance, ensuring accurate object presence or absence monitoring in conveyor systems, packaging machinery, or material handling applications. Its **magnetic field-based detection** eliminates the need for direct contact, reducing wear and tear while maintaining high sensitivity to metallic or ferromagnetic targets. The sensor s **IP67 rating** ensures protection against dust, water, and oil, making it suitable for harsh industrial settings such as food processing, automotive assembly, or metalworking. Additionally, the **40mm diameter** allows for easy installation in tight spaces, while the **standard M12 connector** ensures secure and convenient wiring. Whether used for safety monitoring, process control, or automated sorting, the **CDNAWFN40-150-D** combines precision, durability, and adaptability to enhance operational efficiency in a wide range of industrial applications.

The **SMC CDNAWFN40-150-D** is a pneumatic lock cylinder sensor designed for use with SMC pneumatic actuators, specifically for 40mm bore cylinders. Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the SMC CDNAWFN40-150-D**

1. **High Reliability and Durability**

The SMC brand is well-known for manufacturing robust pneumatic components, and this sensor is no exception. It is built to withstand frequent use in industrial environments, reducing the likelihood of mechanical failure over time. The robust construction ensures longevity, especially in applications with cyclic operation.

2. **Compatibility with SMC Actuators**

This sensor is specifically designed to work seamlessly with SMC s 40mm bore cylinders (e.g., the CDNA series). It is engineered to interface directly with SMC s control systems, ensuring smooth integration without the need for additional adapters or modifications. This compatibility minimizes potential issues related to misalignment or improper fitting.

3. **Precise Position Detection**

The sensor provides accurate feedback on the position of the actuator (e.g., extended, retracted, or intermediate positions). This precision is critical in applications requiring exact control, such as automated assembly lines, packaging machines, or material handling systems. The sensor s digital or analog output (depending on the configuration) allows for real-time monitoring and control via PLCs or other automation systems.

4. **Easy Installation and Maintenance**

SMC components are generally designed with user-friendliness in mind. The CDNAWFN40-150-D features a straightforward mounting system, often involving a simple bolt-on or clamp mechanism. Maintenance is typically minimal, as the sensor has few moving parts and is designed to operate with minimal wear. Cleaning or lubrication requirements are usually low, depending on the application environment.

5. **Wide Range of Applications**

This sensor is versatile and can be used in various industries, including automotive, food and beverage, pharmaceuticals, and general manufacturing. Its ability to work with different types of actuators (e.g., single-acting or double-acting cylinders) makes it adaptable to diverse processes. For example, it can be used in clamping applications, conveyor systems, or press operations.

6. **Compatibility with SMC s Control Solutions**

SMC offers a range of control systems (e.g., valves, controllers, and PLCs) that are optimized to work with their sensors. The CDNAWFN40-150-D can be easily integrated into SMC s valve manifolds or used with third-party control systems that support pneumatic sensors. This interoperability simplifies system design and reduces the need for custom solutions.

7. **Cost-Effective for High-Volume Use**

While the initial cost of SMC components may be higher than some generic alternatives, their reliability and longevity often result in lower total cost of ownership over time. Fewer replacements or repairs mean reduced downtime and maintenance costs in the long run. For large-scale operations, this can translate to significant savings.

8. **Environmental Resistance**

SMC sensors are typically designed to operate reliably in various environmental conditions, including exposure to dust, moisture, and temperature fluctuations (within specified limits). The CDNAWFN40-150-D is likely rated for industrial environments, making it suitable for dirty or harsh settings where generic sensors might fail.

9. **Support and Warranty**

Purchasing from a reputable brand like SMC comes with the added benefit of access to technical support, documentation, and warranty coverage. SMC provides resources for troubleshooting, installation guides, and spare parts, which can be invaluable in resolving issues quickly and efficiently.

10. **Future-Proofing**

SMC s products are designed with compatibility in mind, often supporting upgrades or expansions. If your system needs to evolve over time, the CDNAWFN40-150-D can likely integrate with newer SMC components or control systems without major modifications.

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### **Cons of the SMC CDNAWFN40-150-D**

1. **Higher Upfront Cost**

One of the primary drawbacks of SMC components is their relatively higher initial cost compared to generic or aftermarket alternatives. For small-scale projects or budget-constrained applications, this can be a significant barrier to entry. However, as mentioned earlier, the long-term reliability may offset this cost.

2. **Limited Customization**

SMC sensors are designed for general industrial use and may not offer extensive customization options. If your application requires non-standard mounting, unique positioning, or specialized features (e.g., custom wiring or housing), you may need to work around the sensor s fixed design or invest in additional modifications. This can add complexity to the installation process.

3. **Dependence on SMC Ecosystem**

While the sensor is highly compatible with SMC s own products, integrating it with non-SMC components (e.g., valves, controllers, or actuators from other manufacturers) might require additional adapters, converters, or compatibility checks. This can introduce potential points of failure or complexity in the system design.

4. **Potential for Overkill in Simple Applications**

For very basic applications where precise position feedback is not critical, a simpler or cheaper sensor (e.g., a mechanical limit switch or a basic proximity sensor) might suffice. In such cases, the CDNAWFN40-150-D s advanced features could be unnecessary, making it an over-investment.

5. **Maintenance and Training Requirements**

While SMC sensors are durable, they may require specialized knowledge for installation, calibration, or troubleshooting. If your team lacks experience with SMC products, there may be a learning curve involved. Additionally, some maintenance tasks (e.g., cleaning internal components) might require careful handling to avoid damage.

6. **Limited Availability of Spare Parts**

While SMC has a strong global presence, spare parts for older or discontinued models might be harder to source in some regions. Before purchasing, it s wise to confirm the availability of parts and the sensor s lifecycle status to avoid future supply chain issues.

7. **Potential for Misalignment or Installation Errors**

Improper installation can lead to false readings or mechanical failure. For example, if the sensor is not aligned correctly with the actuator s stroke, it may not detect positions accurately. This risk is mitigated by following SMC s installation guidelines, but it remains a consideration for less experienced users.

8. **Compatibility with Older Systems**

If you are working with legacy systems or older control architectures, integrating the CDNAWFN40-150-D might require additional interfaces or converters. For instance, if your system uses analog signals but the sensor outputs digital, you may need to add a signal conditioner, adding complexity and cost.

9. **Environmental Limitations**

While SMC sensors are robust, they are not designed for extreme environments (e.g., high temperatures beyond 80 C, corrosive chemicals, or high-pressure washdowns). In such cases, specialized sensors or additional protective measures (e.g., enclosures) may be necessary, increasing the overall system cost.

10. **Lead Times for Orders**

Depending on your location and SMC s regional inventory, there may be delays in receiving the sensor, especially if it is not a stock item. This can impact project timelines, particularly in time-sensitive applications.

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### **Conclusion**

The **SMC CDNAWFN40-150-D** is a high-quality, reliable, and precise sensor well-suited for industrial applications requiring accurate position feedback in pneumatic systems. Its strengths lie in its compatibility with SMC s ecosystem, durability, ease of integration with control systems, and long-term cost efficiency. These advantages make it an excellent choice for large-scale manufacturing, automated processes, or applications where reliability and precision are critical.

However, the sensor s higher upfront cost, limited customization, and potential dependence on SMC s ecosystem may pose challenges for smaller projects, budget-sensitive applications, or systems with non-standard requirements. Additionally, users must ensure proper installation and maintenance to avoid issues related to misalignment or environmental factors.

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### **Recommendation**

- You are working with an **SMC pneumatic system** and require precise position detection for critical applications (e.g., automated assembly, material handling, or clamping).

- Your project prioritizes **long-term reliability, low maintenance, and seamless integration** with SMC s control solutions.

- You operate in an **industrial environment** where durability and environmental resistance are essential.

- You have access to **technical support or trained personnel** to handle installation and troubleshooting.

- The **total cost of ownership** (including maintenance and downtime) justifies the higher initial investment.

- Your application is **simple or low-volume**, and a cheaper, less precise sensor (e.g., a mechanical limit switch) would suffice.

- You are working with **non-SMC components** and are concerned about compatibility or additional interfacing costs.

- Your budget is **constrained**, and you can find a similarly reliable generic sensor at a lower price.

- Your system requires **highly customized or non-standard mounting**, which the CDNAWFN40-150-D does not support.

- Verify the sensor s **specifications** (e.g., voltage, signal type, environmental ratings) to ensure it matches your application s requirements.

- Check SMC s **local distributor or authorized dealer** for availability, lead times, and potential discounts or bundles.

- If possible, **test the sensor in a prototype or pilot system** before full-scale deployment to confirm its performance in your specific environment.

- Expl

Details:

LOCATION: PA-04-01. SMC CDNAWFN40-150-D All Photos 8 images thumbnail to view Lot of 2 pneumatic cylinder assemblies 40mm bore, 150mm stroke, double-rod/guide non-rotating design with integrated CNA40D-UA bi-directional air lock unit and dual D-B64 position sensors per. Speed controllers and fittings appear present intact; G1/8 ports, 5/16 rod end threads approx. Rated to 1.0 MPa. Guaranteed Working.

Priced to Move. Technical Specifications, make Smc, part 40-150-d, bore / stroke40mm 150mm, max pressure 1.0 mpa 145 psi, port size 1/8, lock unitcna40d-ua bi-directional fail-safe, position sensors Smc d-b64 2 per unit, m8 connector, media compressed air. Both units show typical wear including scuffing on end caps and rod ends but are in good overall structural condition guaranteed functional. Used does not mean untested.

We price aggressively and accept reasonable best offers. Changed your mind or it just does not work out. A pelleting/crating fee may apply for very large items.

part #: cdnawfn40150 prices

• $151.99-$165.00

specifications hydraulicylind:

• brand: Smc
• mpn: Cdnawfn40-150-d
• part type: Lock Cylinder Sensor
• mounting style: Foot/flange
• stroke: 150mm
• rod end thread: 5/16
• port size: G1/8
• position sensors: Smc D-b64, Included
• quantity: 2
• bore diameter: 40mm
• action type: Double Acting
• country of origin: Cylinder
• lock type: Bi-directional Air/spring Power Lock
• rod configuration: Double Rod
• lock unit model: Cna40d-ua
• fluid medium: Compressed Air
• sensor connector: M8
• max operating pressure: 1.0 Mpa / 145 Psi

general hydraulicylind:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Pneumatic Cylinders
• condition: Used

payments hydraulicylind:

• wallet: Paypal
• other
• credit card: Discover

seller hydraulicylind:

• rating: 100.0%
• city: Laporte, Colorado
• # reviews: 21765

returns hydraulicylind:

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

shipping hydraulicylind:

• service: UPS Ground, USPS Priority Mail, UPS Next Day Air
• type: Calculated
• class: Standard, Expedited, One-day
• cost: $40.87
• carrier: UPS, USPS
• transit: 2-6 Days

offer hydraulicylind:

• options: Ship-to-home
• started: June 3, 2026
• availability: In Stock
• sold: 0
• quantity: 1
• best offers: True

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