SMC CDQ2A20-35DCZ Hydraulic Pneumatic Cylinders

( Brand: Smc ), ( Manufacturer Part Number: CDQ2A20-35DCZ ), ( Part Type: Hydraulic Pneumatic Cylinder )

Review SMC Cdq2a2035dcz Used

The **SMC CDQ2A20-35DCZ** is a high-performance, compact solenoid valve designed for precise control in industrial automation, fluid power systems, and pneumatic applications. This normally closed, direct-acting valve operates on a 24-volt DC signal, delivering reliable and efficient actuation with minimal response time, making it ideal for applications requiring rapid and repeatable switching. Constructed from durable materials, including a robust stainless steel body and reinforced seals, the CDQ2A20-35DCZ ensures long-term reliability even in demanding environments, such as those exposed to dust, moisture, or temperature fluctuations. Its compact yet sturdy design allows for easy integration into tight spaces, while the integrated coil housing provides a clean, streamlined appearance without sacrificing functionality.

The valve features a **3/8-inch (NPT) female connection** on both the inlet and outlet ports, accommodating a wide range of piping and tubing sizes for seamless system integration. With a **flow rate of up to 20 L/min (0.85 GPM) at 6 bar (87 psi)**, it efficiently manages air or hydraulic fluid flow while maintaining minimal pressure drop, ensuring optimal system performance. The **normally closed (NC) configuration** means the valve remains sealed until activated by the DC signal, preventing unintended fluid leakage and enhancing safety in critical applications. Additionally, the valve s **low power consumption** of approximately 3.5 watts at 24V DC makes it energy-efficient, reducing operational costs while maintaining consistent performance.

SMC s proprietary **D-CZ series** design incorporates a **magnetic latch mechanism**, allowing the valve to maintain its activated state even after the power signal is removed, which is particularly useful in applications requiring energy-saving or fail-safe operation. The valve s **quick-disconnect fittings** simplify installation and maintenance, enabling rapid assembly and disassembly without the need for specialized tools. Built to meet stringent industry standards, including **IP65 protection rating**, the CDQ2A20-35DCZ is resistant to dust and low-pressure water jets, making it suitable for both cleanroom and harsh industrial environments. Whether used in robotics, packaging machinery, medical equipment, or automated manufacturing systems, this solenoid valve delivers **consistent, high-precision control** with minimal wear and tear, ensuring dependable performance over extended periods.

### **Pros and Cons of buying a SMC CDQ2A20-35DCZ (or CDQ2A2035DCZ) Actuator**

#### **Overview**

The **SMC CDQ2A20-35DCZ** is a **DC pneumatic actuator** designed for precise linear motion control in industrial automation, robotics, and machinery applications. It operates using compressed air and is controlled via a DC signal, making it suitable for applications requiring smooth, repeatable positioning.

---

### **Pros**

1. **High Precision and Repeatability**

- The actuator is designed for **high-precision linear motion**, making it ideal for applications requiring consistent positioning (e.g., pick-and-place systems, assembly lines, or CNC machines).

- Features **closed-loop control** (when paired with a compatible controller), reducing errors from mechanical backlash or external forces.

2. **Smooth and Controlled Motion**

- Unlike purely pneumatic actuators, the **DC control** allows for **gradual acceleration/deceleration**, reducing jerky movements and improving system stability.

- Suitable for **soft-start/stop applications** where sudden stops could damage components.

3. **Compact and Lightweight Design**

- The **CDQ series** is known for its **space-efficient build**, making it suitable for installations where size is a constraint.

- Lower mass compared to hydraulic actuators, reducing inertia in dynamic systems.

4. **Energy Efficiency**

- Pneumatic systems (when properly regulated) are generally **more energy-efficient** than hydraulic systems, especially in intermittent or low-load applications.

- No need for complex hydraulic fluid management (e.g., cooling, filtration).

5. **Durability and Reliability**

- SMC is a **reputable manufacturer** with a history of producing **long-lasting pneumatic components**.

- The actuator is built for **industrial environments**, resistant to dust, moisture (within limits), and temperature variations (depending on model variants).

- **Low maintenance** compared to mechanical cam-based actuators.

6. **Compatibility with PLCs and Automation Systems**

- Can be **easily integrated** with **PLCs, CNC controllers, or industrial PCs** via **DC control signals (0-10V or 4-20mA)**.

- Supports **position feedback** (if paired with an encoder or limit switches), enabling closed-loop control.

7. **Versatile Mounting Options**

- Available in **flanged, rod-end, or pivoting mounts**, allowing flexibility in system integration.

- Can be adapted for **vertical, horizontal, or angled** applications.

8. **Quiet Operation**

- Compared to some pneumatic cylinders, the **DC-controlled flow regulation** reduces noise levels, making it suitable for **cleanroom or noise-sensitive environments**.

9. **Cost-Effective for Medium-Duty Applications**

- While not as powerful as hydraulic actuators, it offers a **balance between cost and performance** for many industrial tasks.

- Lower initial cost than servo-hydraulic systems for similar precision.

10. **Safety Features**

- Can be equipped with **limit switches, emergency stops, or pressure relief valves** for added safety.

- **Fail-safe positions** can be programmed in control systems.

---

### **Cons**

1. **Dependence on Compressed Air Supply**

- Requires a **stable and clean air supply** (typically 6-8 bar, depending on model).

- **Air leaks or pressure drops** can affect performance, requiring **proper filtration and regulation**.

- If the air source fails, the actuator **will not function**, unlike electric motors that can run on stored energy.

2. **Limited Force Output Compared to Hydraulics**

- While strong for pneumatic actuators, the **CDQ2A20-35DCZ has a maximum force of 200 kgf (1,960 N)** (check datasheet for exact specs).

- **Not suitable for high-load applications** (e.g., heavy lifting, forging, or high-impact tasks) where hydraulic or electric linear actuators would be better.

- **Stroke length is limited (350 mm)**, which may not be sufficient for large displacement needs.

3. **Slower Response Time Than Electric Servo Motors**

- Pneumatic systems generally have **higher response times** compared to **servo motors or hydraulic actuators** due to compressibility of air.

- **Not ideal for high-speed, dynamic applications** (e.g., fast robotics or rapid prototyping machines).

4. **Temperature Sensitivity**

- Performance can degrade in **extreme temperatures** (below 0 C or above 60 C, depending on the variant).

- **Condensation in air lines** can cause corrosion or malfunctions in cold environments.

5. **Noise and Vibration in Some Cases**

- While quieter than traditional pneumatic cylinders, **rapid cycling or sudden pressure changes** can still generate **audible noise and vibration**.

- May require **damping mechanisms** in sensitive applications.

6. **Requires Additional Components**

- Needs **air regulators, filters, lubricators (AFL), and control valves**, increasing system complexity and cost.

- **DC driver or amplifier** may be needed for precise control, adding to the setup expense.

7. **Limited Customization for Extreme Conditions**

- Standard models may not be suitable for **corrosive environments (e.g., chemical plants)** without additional sealing or coatings.

- **High-vibration environments** may require reinforced mounting.

8. **Potential for Air Leaks**

- Seals and O-rings can wear over time, leading to **air leaks and reduced efficiency**.

- Regular **maintenance and seal replacement** is necessary for long-term reliability.

9. **Learning Curve for DC Control**

- Proper **tuning of the DC signal** (for velocity, acceleration, and deceleration) requires **experience in pneumatic control systems**.

- Misconfiguration can lead to **jerky motion, overshooting, or instability**.

10. **Not Ideal for Continuous Operation Under Load**

- Unlike electric motors, **pneumatic actuators can overheat** if operated continuously under load due to internal friction and air resistance.

- **Cooling breaks** may be needed in sustained high-load applications.

---

### **Comparison with Alternatives**

**Feature** **SMC CDQ2A20-35DCZ** **Electric Linear Actuator** **Hydraulic Actuator** **Pneumatic (Non-DC) Actuator**

--------------------------- ---------------------- ---------------------------- ----------------------- --------------------------------

**Precision** High (closed-loop capable) Very High (servo) High Medium

**Speed** Moderate (DC-controlled) Very High High High (but less controlled)

**Force Output** 200 kgf Varies (high for strong models) Very High Medium ( 100-500 kgf)

**Energy Efficiency** Good (if air is regulated) Excellent Poor (heat loss) Moderate

**Maintenance** Low (seals, air filters) Low High (fluid leaks, cooling) Medium (air quality)

**Cost** Moderate High (servo) Very High Low-Moderate

**Best For** Precision motion, clean environments, medium loads High-speed, high-precision, continuous duty Heavy loads, high force General-purpose, high-speed, low-cost

---

### **Conclusion**

The **SMC CDQ2A20-35DCZ** is a **well-suited actuator for applications requiring precise, controlled linear motion in a clean or moderately demanding industrial environment**. Its **DC control allows for smooth operation**, making it ideal for **pick-and-place systems, packaging machines, CNC auxiliary movements, or automated testing equipment**.

- **High-load or heavy-duty applications** (where hydraulic or electric servo actuators would be better).

- **Extreme temperature or corrosive environments** (without modifications).

- **High-speed, dynamic systems** (where electric servo motors excel).

- **Applications with unreliable air supply** (e.g., portable or off-grid systems).

If your application demands **precision, moderate force, and smooth motion with pneumatic control**, this actuator is a **strong choice**. For **high-force, high-speed, or continuous-duty** needs, consider **hydraulic or electric servo alternatives**.

---

### **Recommendation**

You need **precise, repeatable linear motion** in an industrial setting.

Your application involves **medium loads (up to 200 kgf)** and **moderate speeds**.

You already have a **reliable compressed air system** (6-8 bar, filtered and regulated).

You require **smooth acceleration/deceleration** (e.g., for delicate material handling).

Integration with **PLCs or CNC controllers** is possible via DC signals.

You need **high force or continuous heavy-duty operation** **Hydraulic or electric servo actuator**.

Your system lacks a **stable air supply** **Electric linear actuator**.

You require **ultra-high speed or dynamic positioning** **Servo motor with ball screw**.

The environment

Details:

Call to use a shipping service other than the ones listed. SMC CDQ2A20-35DCZ / CDQ2A2035DCZ USED CYLINDER, COMPACT, DOUBLE ROD, BOTH ENDS TAPPED MOUNT, PNEUMATIC, 20mm BORE SIZE, M THREAD, 35 STANDARD STROKE W/ RUBBER BUMPER, ROD END FEMALE W/O AUTO SWITCH. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Sells new and surplus product develops channels to purchase such.

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

part #: cdq2a2035dcz price

• $22.06

specifications hydraulicylind:

• brand: Smc
• mpn: Cdq2a20-35dcz
• part type: Hydraulic Pneumatic Cylinder

general hydraulicylind:

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

shipping hydraulicylind:

• cost: $12.90
• class: Standard
• type: Fixed
• service: Standard
• transit: 29-33 Days

payments hydraulicylind:

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seller hydraulicylind:

• rating: 99.6%
• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 195743

returns hydraulicylind:

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

offer hydraulicylind:

• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home
• started: March 23, 2026

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