SMC CDU16-5D Mount Cylinder 16MM 5MM M5X0.8 0.7MPA

( Brand: Smc ), ( Manufacturer Part Number: CDU16-5D ), ( Part Type: Mount Cylinder ), ( Cylinder Action: Double-acting ), ( Cylinder Type: Compact Cylinder )

Review SMC Free Mount Cylinder 16mm Bore 5mm Stroke Max

The **SMC CDU16-5D Mounting Cylinder** is a precision-engineered pneumatic actuator designed for reliable, high-performance linear motion applications in industrial automation, assembly lines, and material handling systems. This compact yet robust **16mm bore cylinder** delivers a consistent and repeatable stroke of **50mm**, making it ideal for applications requiring precise positioning, clamping, or indexing tasks. With a **5mm rod diameter**, it balances strength and maneuverability, ensuring smooth operation even in tight spaces where space efficiency is critical. The cylinder features a **M5 x 0.8 metric thread** on its mounting flange, allowing for secure and versatile installation on standard mounting surfaces, including panels, frames, or custom fixtures. Constructed from high-quality materials, this cylinder is built to withstand operational pressures up to **0.7 MPa (7 bar)**, providing a robust solution for moderate to light-duty pneumatic applications while maintaining durability over extended use.

The CDU16-5D incorporates SMC s signature **sealed rod design**, which minimizes contamination from dust, debris, or moisture, thereby enhancing the cylinder s longevity and reducing maintenance requirements. Its **single-acting configuration** (spring-return) simplifies system design by eliminating the need for external return springs or additional components, while still offering efficient energy consumption. The cylinder s **compact footprint** and lightweight construction make it well-suited for integration into automated machinery where space optimization is essential. Whether deployed in packaging equipment, medical devices, or automated testing systems, this cylinder ensures consistent performance with minimal wear, contributing to higher productivity and lower operational costs. For applications demanding reliability, precision, and ease of installation, the SMC CDU16-5D Mounting Cylinder stands as a versatile and dependable choice.

The **SMC CDU16-5D** is a pneumatic cylinder designed for industrial automation, offering precise control and reliability. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the SMC CDU16-5D Cylinder**

1. **High Precision and Repeatability**

The CDU series from SMC is known for its high positional accuracy, typically within 0.1 mm, making it suitable for applications requiring fine control, such as assembly lines, packaging, or testing equipment. The 0.7 MPa (7 bar) pressure rating ensures consistent force delivery, reducing variability in motion.

2. **Compact and Lightweight Design**

With a **16 mm bore diameter** and **5 mm rod diameter**, this cylinder is one of SMC s smallest in the CDU series, making it ideal for applications with limited space. Its lightweight construction (likely aluminum or steel alloy) reduces inertia, allowing for faster response times and lower energy consumption.

3. **M5 Threaded Mounting**

The **M5 threaded mounting** (with a 0.8 mm thread pitch) provides flexibility in installation, allowing for easy integration into custom or existing setups. This thread size is common in automation, ensuring compatibility with various mounting brackets, plates, or fixtures.

4. **Durability and Reliability**

SMC cylinders are built for industrial use, featuring sealed internal components to resist dust, moisture, and temperature fluctuations (typically rated for -10 C to 60 C). The **0.7 MPa pressure rating** is robust for most light-duty to medium-duty applications, though it may not handle extreme shock loads.

5. **Compatibility with SMC s Pneumatic System**

This cylinder is part of SMC s **CDU series**, which is designed to work seamlessly with their valves, regulators, and control systems. Users already invested in SMC s ecosystem will benefit from simplified integration and troubleshooting.

6. **Low Maintenance Requirements**

SMC cylinders are generally low-maintenance, with sealed rods and minimal wear points. The absence of external lubrication points reduces the risk of contamination in cleanroom or food-grade applications.

7. **Cost-Effective for Small-Scale Applications**

While not the cheapest cylinder on the market, its compact size and precision justify its cost for applications where space and accuracy are critical. It avoids the need for larger, more expensive actuators.

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### **Cons of the SMC CDU16-5D Cylinder**

1. **Limited Force Output**

With a **16 mm bore** and **0.7 MPa pressure**, the maximum force generated is relatively low (calculated as **Force Pressure Area 0.7 MPa ( (16/2) mm ) 140 N**). This makes it unsuitable for heavy-duty applications, such as pressing, clamping, or lifting significant weights. For such tasks, a larger cylinder (e.g., 25 mm or 40 mm bore) would be necessary.

2. **Pressure Rating May Be Too Low for Some Applications**

While 0.7 MPa is standard for many automation tasks, some applications (e.g., high-force assembly, material handling) may require **1.0 MPa or higher** pressure. Upgrading to a higher-pressure cylinder would increase cost and may require reinforcement of the mounting structure.

3. **Rod Diameter May Be Too Small for Robust Applications**

- **Bending under lateral loads** (if the cylinder is not perfectly aligned).

- **Higher susceptibility to wear** in dirty or abrasive environments.

- **Reduced stiffness**, potentially affecting precision in high-speed or high-acceleration applications.

4. **Limited Stroke Length Options**

The CDU16 series typically offers stroke lengths up to **50 mm** (exact options depend on the model). For applications requiring longer strokes, a different cylinder series (e.g., SMC s **CDU25** or **CDU40**) would be needed.

5. **No Integrated Position Feedback (Standard)**

This cylinder does not come with built-in position sensors. For precise control, external sensors (e.g., inductive proximity sensors, linear encoders) or a separate feedback system (e.g., SMC s **QSE series** valves with position feedback) would be required, adding complexity and cost.

6. **Potential for Leakage Over Time**

Like all pneumatic cylinders, seals degrade with use, especially in environments with contaminants (dust, oil, moisture). While SMC uses high-quality seals, regular maintenance (e.g., lubrication, seal replacement) may be needed to prevent air leaks, which can affect performance and efficiency.

7. **Limited Customization**

SMC s standard CDU16-5D cylinder offers few customization options beyond mounting and stroke length. For specialized applications (e.g., custom end-of-stroke buffers, integrated sensors), additional modifications or third-party accessories may be required.

8. **Dependence on SMC s Ecosystem**

While SMC s components are reliable, users heavily invested in non-SMC systems (e.g., Festo, Bosch Rexroth) may face compatibility issues or require additional adapters, increasing integration complexity.

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### **Conclusion**

The **SMC CDU16-5D** is an excellent choice for **precision, space-constrained, light-to-medium-duty pneumatic applications** where accuracy, compactness, and compatibility with SMC s system are priorities. It excels in tasks such as:

- **Assembly line operations** (e.g., part positioning, gentle clamping).

- **Testing and inspection** (e.g., probe movement, sample handling).

- **Packaging and labeling** (e.g., sealing, gluing, or light pressing).

- **Medical or food-grade automation** (where cleanliness and low maintenance are critical).

- **High-force applications** (e.g., heavy pressing, material handling).

- **Applications requiring long strokes** (beyond 50 mm).

- **Harsh environments** (e.g., extreme temperatures, high contamination).

- **Systems needing integrated position feedback** without additional sensors.

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### **Recommendation**

- Your application requires **high precision ( 0.1 mm repeatability)** in a **compact space**.

- The **force requirements are 140 N** (calculated at 0.7 MPa).

- You are already using **SMC s pneumatic components** and benefit from ecosystem compatibility.

- The **environment is clean or moderately controlled** (minimal dust/oil).

- You can **supplement with external sensors** if position feedback is needed.

- You need **higher force** (>140 N) Upgrade to a **CDU25 or CDU40** (e.g., CDU25-5D for 350 N at 0.7 MPa).

- Your application involves **long strokes** (>50 mm) Choose a **longer-stroke cylinder** (e.g., SMC s **CDU series with extended options**).

- The environment is **dirty or abrasive** Opt for a **larger rod diameter** (e.g., 8 mm) or a **sealed, heavy-duty cylinder** (e.g., SMC s **CDU series with reinforced rod**).

- You require **built-in position feedback** Pair with **SMC s QSE valves with position sensors** or a **linear encoder**.

- Cost is a major concern Evaluate **non-branded or lower-pressure cylinders** (e.g., 0.5 MPa) for simpler applications.

The **SMC CDU16-5D** is a **well-engineered, reliable cylinder** for its intended use case. Its strengths in precision and compactness make it a strong choice for niche automation tasks, but its limitations in force and stroke length should be carefully considered against your specific requirements. If your application aligns with its capabilities, it is a **solid, low-risk purchase** from a trusted manufacturer.

Details:

This is a surplus item. SMC Free Mount Pneumatic Cylinder. Available Carriers. Specifications: model #: CDU16-5D.

Type: Double acting. Ports: M5x0.8. Bore Diameter: 16mm. Stroke length : 5mm.

part #: cdu165d prices

• $30.00-$120.00

specifications hydraulicylind:

• brand: Smc
• mpn: Cdu16-5d
• part type: Mount Cylinder
• cylinder action: Double-acting
• cylinder type: Compact Cylinder

returns hydraulicylind:

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

seller hydraulicylind:

• # reviews: 43599
• city: Osseo, Minnesota
• rating: 100.0%

payments hydraulicylind:

• wallet: Paypal
• cash
• credit card: Diners-club
• other

shipping hydraulicylind:

• transit: 3-5 Days
• class: Standard, Expedited, One-day
• service: USPS First Class, USPS Priority Mail Padded Flat Rate Envelope, UPS Next Day Air
• carrier: USPS, UPS
• cost: $0.00
• type: Calculated

general hydraulicylind:

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

offer hydraulicylind:

• started: February 16, 2026
• quantity: 2
• sold: 0
• best offers: True
• availability: In Stock
• options: Ship-to-home

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