SMC RSDQB20-200 Double Acting Stopper Cylinder 10MM 119493

( Brand: Smc ), ( Manufacturer Part Number: RSDQB20-200 ), ( Part Type: Stopper Cylinder )

Review SMC Double Acting Stopper Cylinder 10mm #119493

The **SMC RS-DQB20-200 Double Acting Stopper Cylinder (Model 119493)** is a high-performance pneumatic actuator designed for precision control in industrial automation, material handling, and packaging applications. Part of SMC s robust RS-DQB series, this double-acting cylinder delivers reliable linear motion with exceptional force and positioning accuracy, making it ideal for demanding environments where consistent performance is critical. With a **20 mm bore diameter** and a **200 mm stroke length**, this compact yet powerful cylinder is engineered to handle moderate to heavy loads with smooth, repeatable motion, ensuring efficient operation in automated systems. The **double-acting design** allows for controlled extension and retraction by supplying compressed air to either side of the piston, enabling precise stopping at predefined positions an essential feature for applications requiring synchronized movement or sequential operations. Constructed from high-quality materials, including a durable aluminum cylinder body and a robust piston rod with a **10 mm diameter**, this unit is built to withstand frequent cycling, vibration, and environmental challenges, offering long-term durability and minimal maintenance requirements. The **stopper mechanism** integrated into the design ensures the piston rod stops at a predetermined position when the air supply is cut off, eliminating the need for external limit switches and reducing system complexity. This feature is particularly advantageous in applications where precise positioning, such as clamping, indexing, or feeding operations, is necessary. The cylinder s **sealed construction** and robust end caps protect internal components from dust, moisture, and contaminants, making it suitable for cleanroom environments or applications exposed to harsh conditions. Additionally, the RS-DQB20-200 is compatible with SMC s extensive range of pneumatic accessories, including quick-connect fittings, cushioning units, and position sensors, allowing for seamless integration into existing automation setups. Whether deployed in food and beverage processing, automotive assembly, or general industrial machinery, this cylinder exemplifies SMC s commitment to precision engineering and reliability, delivering consistent performance with every cycle.

The **SMC RS-DQB20-200 double-acting stopper cylinder** (20 mm bore, 10 mm rod, part number 119493) is a pneumatic actuator commonly used in industrial automation, packaging, and material handling applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **High Precision and Repeatability**

The RS-DQB series from SMC is known for its high positional accuracy and repeatability, making it suitable for applications requiring consistent movement, such as indexing, clamping, or positioning tasks. The double-acting design ensures controlled extension and retraction, reducing overshoot or drift.

2. **Durability and Reliability**

SMC cylinders are built with robust materials, including hardened steel rods and corrosion-resistant coatings (e.g., zinc plating or chrome plating), which extend the lifespan of the actuator. The RS-DQB model is designed for heavy-duty applications, handling frequent cycles without excessive wear.

3. **Compact and Lightweight Design**

The 20 mm bore size makes this cylinder suitable for applications with limited space, such as in automated machinery or conveyor systems. Its lightweight construction reduces inertia, allowing for faster response times in dynamic applications.

4. **Double-Acting Operation**

Unlike single-acting cylinders, this model can be controlled independently in both extension and retraction phases. This feature allows for precise stopping positions, bidirectional force control, and the ability to hold loads in either position without external springs or gravity dependence.

5. **Compatibility with SMC Pneumatic Systems**

The cylinder integrates seamlessly with SMC s pneumatic components, including valves, regulators, and fittings, simplifying system design and maintenance. This compatibility reduces the need for additional adapters or third-party parts, lowering overall system costs.

6. **Standardized and Easy to Maintain**

SMC cylinders are widely available and supported by a global network of distributors and technical support. Maintenance is straightforward, with replaceable seals, cushions, and end caps available as spare parts. The cylinder s modular design allows for easy disassembly and cleaning.

7. **Versatile Mounting Options**

The RS-DQB series offers multiple mounting styles (e.g., trunnion, clevis, or flange) and rod end configurations (e.g., threaded, ball, or quick-release), making it adaptable to various mechanical setups without extensive modifications.

8. **Energy Efficiency**

Double-acting cylinders can be designed with efficient air consumption, especially when paired with SMC s energy-saving valves (e.g., flow control or quick-exhaust valves). This reduces operational costs in high-cycle applications.

9. **Safety Features**

The cylinder includes built-in cushioning (adjustable via the end caps) to reduce impact forces during stopping, prolonging the life of the cylinder and surrounding machinery. Some models may also include magnetic or mechanical limit switches for position feedback.

10. **Global Availability and Warranty Support**

SMC is a well-established brand with extensive documentation, training resources, and warranty coverage. This ensures long-term support and access to technical assistance, which is critical for mission-critical applications.

---

### **Cons**

1. **Limited Stroke Length**

The 200 mm stroke length may be insufficient for applications requiring longer travel distances. For such cases, a larger bore size (e.g., 25 mm or 32 mm) or a multi-stage cylinder would be necessary, increasing cost and complexity.

2. **Higher Cost Compared to Basic Cylinders**

While SMC cylinders offer high precision and reliability, they are generally more expensive than standard or generic pneumatic cylinders. For budget-sensitive applications, alternatives from lesser-known brands or non-branded cylinders might be considered, though with potential trade-offs in quality and support.

3. **Dependence on Pneumatic System Quality**

The performance of the cylinder is directly tied to the quality of the air supply (e.g., filtration, lubrication, and pressure regulation). Poor air quality can lead to premature wear on seals and internal components, negating the cylinder s durability advantages.

4. **Maintenance Requirements**

Although SMC cylinders are durable, they still require periodic maintenance, such as lubrication of seals, inspection of rod surfaces for corrosion, and replacement of worn components. Neglecting maintenance can lead to leaks, reduced efficiency, or failure.

5. **Limited Customization for Extreme Conditions**

While the RS-DQB20-200 is robust, it may not be suitable for extreme environments (e.g., high temperatures, corrosive chemicals, or high-vibration settings) without additional modifications or specialized coatings. For such conditions, SMC offers alternative series (e.g., RS-DQB with special seals or RS-DQB-H for high temperatures).

6. **Potential for Leaks**

Like all pneumatic cylinders, this model can develop leaks over time, particularly at the rod seals or piston seals. While SMC uses high-quality seals, leaks can occur if the cylinder is overloaded, misaligned, or subjected to contaminated air.

7. **Skill Dependency for Installation**

Proper installation, including alignment, lubrication, and connection to the pneumatic system, requires technical expertise. Incorrect installation can lead to premature wear, reduced performance, or even catastrophic failure. This may necessitate training or hiring skilled personnel.

8. **Noise and Vibration**

Double-acting cylinders can generate noise and vibration during operation, especially at high speeds or when stopping abruptly. While cushioning helps mitigate this, it may still be a consideration in noise-sensitive environments.

9. **Limited Rod Diameter Options**

The 10 mm rod diameter is standard for the 20 mm bore size, which may limit force output in applications requiring higher thrust. For greater force, a larger bore (e.g., 25 mm) would be needed, increasing the cylinder s size and cost.

10. **Compatibility with Non-SMC Components**

While SMC components are designed to work together, integrating this cylinder with non-SMC valves or fittings may require adapters or additional seals, adding complexity and potential failure points.

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### **Conclusion**

The **SMC RS-DQB20-200 double-acting stopper cylinder** is an excellent choice for applications requiring high precision, reliability, and compact size in pneumatic systems. Its double-acting design, durability, and compatibility with SMC s ecosystem make it ideal for automated machinery, packaging, and material handling tasks where consistent performance is critical. However, its limitations such as the fixed stroke length, higher cost, and dependence on system quality must be carefully considered. For applications with extreme environmental demands or longer strokes, alternative models or brands may be more suitable.

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### **Recommendation**

- Your application requires **high precision, repeatability, and bidirectional control** (e.g., clamping, indexing, or positioning).

- You are working within a **limited space** and need a compact, lightweight cylinder.

- You are already using **SMC pneumatic components**, as this ensures seamless integration and reduced system complexity.

- Your environment is **moderate in terms of temperature, vibration, and contamination**, as the standard model may not handle extreme conditions without modifications.

- You prioritize **long-term reliability and support**, as SMC s global network and warranty coverage provide peace of mind.

- You need a **longer stroke length** (e.g., >200 mm), in which case a larger bore size or multi-stage cylinder would be better.

- Your budget is **constrained**, and you can tolerate slightly lower precision or support from a less established brand.

- Your application involves **extreme temperatures, corrosive environments, or high vibration**, where a specialized SMC model (e.g., RS-DQB-H for heat) or a different brand may be more appropriate.

- You require **higher force output**, and the 20 mm bore is insufficient, necessitating a larger cylinder.

- Pair the cylinder with **SMC s flow control valves** to optimize speed and cushioning.

- Ensure your pneumatic system includes **proper filtration and lubrication** to extend the cylinder s lifespan.

- Consult SMC s technical documentation or a distributor for **application-specific recommendations**, as minor modifications (e.g., seal selection) can enhance performance.

- If maintenance is a concern, allocate time for **regular inspections and lubrication** to prevent leaks or wear.

Details:

SMC RSDQB20-200 DOUBLE ACTING STOPPER CYLINDER 20 X 10MM. MANUFACTURER PART NUMBER: RSDQB20-200.

part #: rsdqb20200 prices

• $25.00-$38.00

specifications hydraulicylind:

• brand: Smc
• mpn: Rsdqb20-200
• part type: Stopper Cylinder

general hydraulicylind:

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

shipping hydraulicylind:

• type: Calculated
• cost: $22.15
• class: Standard, Expedited, One-day
• carrier: FedEx, UPS, USPS
• service: FedEx Ground / FedEx Home Delivery, UPS Ground, USPS Priority Mail, FedEx Standard Overnight
• transit: 3-5 Days

offer hydraulicylind:

• availability: In Stock
• options: Ship-to-home
• started: June 12, 2026
• sold: 0
• quantity: 1
• best offers: True

returns hydraulicylind:

• policy: No Returns

payments hydraulicylind:

• credit card: Visa
• other
• wallet: Apple-pay

seller hydraulicylind:

• city: Clinton Township, Michigan
• rating: 99.9%
• # reviews: 22018

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