SMC CRB1BW50-270S Pneumatic Rotary Vane Actuator 50MM

( Brand: Smc ), ( Manufacturer Part Number: CRB1BW50-270S ), ( Part Type: Pneumatic Actuator ), ( Product Condition: New Other ), ( Max Pressure: 1 Mpa ), ( Reference Sku: 1709553 )

Review SMC Pneumatic Rotary Vane Actuator 50mm 270 Used

The **SMC CRB1BW50-270S** is a high-performance pneumatic rotary vane actuator designed for precision motion control in industrial automation applications. This robust, compact unit delivers smooth and reliable rotational movement with an impressive 270-degree arc, making it ideal for positioning tasks where partial or full rotation is required. Engineered with SMC s signature quality and precision, the CRB1BW50-270S features a **50mm bore diameter**, providing ample force output for a wide range of applications, including valve actuation, indexing systems, and automated assembly processes. Its **rotary vane design** ensures minimal friction and wear, contributing to extended operational life and consistent performance even under demanding conditions. The actuator is equipped with a **standard 1/4-inch NPT air inlet**, allowing for easy integration with existing pneumatic systems, while its **compact footprint** optimizes space utilization in tight machinery layouts. Built to withstand harsh environments, the CRB1BW50-270S is constructed from durable materials, including corrosion-resistant coatings and reinforced housing, ensuring durability in industrial settings. Its **smooth, low-noise operation** is achieved through precision-machined components and optimized vane geometry, reducing energy consumption while maintaining high efficiency. Additionally, the actuator includes **adjustable end-of-travel stops** for precise positioning control, allowing operators to fine-tune the rotation range to match specific application requirements. Whether used in packaging machinery, material handling systems, or automated testing equipment, the SMC CRB1BW50-270S delivers dependable performance with minimal maintenance, making it a versatile and cost-effective solution for industries demanding reliable pneumatic actuation.

### **Pros and Cons of buying a SMC CRB1BW50-270S Pneumatic Rotary Vane Actuator (50mm, 270 )**

1. **High Torque and Reliability** The 50mm bore size provides substantial rotational force (up to 270 Nm at 6 bar), making it suitable for heavy-duty applications such as industrial automation, packaging machinery, or valve actuation.

2. **Wide Rotation Range (270 )** The 270 rotation allows for precise positioning, which is ideal for applications requiring partial or full rotational movement (e.g., clamping, indexing, or pivoting mechanisms).

3. **Compact and Space-Efficient Design** The vane actuator is more compact than traditional rotary cylinder designs, making it easier to integrate into tight spaces without sacrificing performance.

4. **High-Speed Operation** Pneumatic actuators generally offer faster response times compared to hydraulic or electric alternatives, improving cycle times in automated processes.

5. **Low Maintenance** SMC actuators are known for durability and minimal maintenance requirements, reducing downtime and operational costs over time.

6. **Compatibility with SMC s Ecosystem** If you already use SMC components (valves, regulators, etc.), this actuator integrates seamlessly with their pneumatic systems, ensuring compatibility and ease of control.

7. **Precision and Repeatability** The vane design provides smooth, consistent rotation with minimal backlash, which is critical for applications requiring repeatable positioning.

8. **Energy Efficiency** Pneumatic systems are generally more energy-efficient than hydraulic ones, especially in intermittent or cyclic operations.

9. **Explosion-Proof and Safety Certifications** SMC offers models that meet safety standards (e.g., ATEX, IECEx), making them suitable for hazardous environments.

10. **Customizable Mounting Options** The actuator can be mounted in various orientations (flange, foot, or base), offering flexibility in system design.

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1. **Limited Continuous Rotation** Unlike continuous-rotation actuators, this model only provides 270 of movement, which may restrict its use in applications requiring full 360 rotation.

2. **Dependence on Compressed Air Supply** Pneumatic systems require a reliable air compressor and filtration system. Power outages or air supply failures can halt operations.

3. **Noise and Vibration** Pneumatic actuators can generate noise and vibration, which may be problematic in noise-sensitive environments or require additional soundproofing.

4. **Temperature Sensitivity** Extreme temperatures (very high or low) can affect pneumatic performance, potentially requiring additional cooling or heating solutions.

5. **Higher Initial Cost Compared to Electric Alternatives** While pneumatic systems are cost-effective in the long run, the upfront cost of compressors, valves, and piping may be higher than electric actuators for some applications.

6. **Leakage Risks** Over time, seals and connections may wear out, leading to air leaks that reduce efficiency and increase maintenance needs.

7. **Limited Torque at Low Pressures** If the system pressure drops below the recommended range (e.g., below 4 bar), the actuator may struggle to deliver sufficient torque, affecting performance.

8. **Not Ideal for High-Precision Positioning** While repeatable, pneumatic actuators may lack the fine control of servo electric or hydraulic systems for ultra-precise applications.

9. **Space for Air Lines and Fittings** Additional piping and fittings required for pneumatic operation may occupy extra space, which could be a constraint in compact systems.

10. **Potential for Condensation** In humid environments, moisture in the air supply can cause condensation inside the actuator, leading to corrosion or performance issues if proper filtration and drying are not implemented.

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### **Conclusion**

The **SMC CRB1BW50-270S** is a robust, high-performance pneumatic rotary vane actuator well-suited for industrial applications requiring **reliable, high-torque rotation within a 270 range**. Its compact design, compatibility with SMC s pneumatic ecosystem, and low maintenance make it a strong choice for **automation, packaging, material handling, and valve actuation** where speed and durability are prioritized.

However, it may not be the best fit for applications needing **continuous rotation, ultra-high precision, or extreme environmental conditions** without additional safeguards. If your system already relies on pneumatic power and you require **efficient, heavy-duty rotational movement**, this actuator is a solid investment. For applications where **electric or hydraulic alternatives offer better precision, silence, or space efficiency**, those may be preferable despite higher long-term costs.

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### **Recommendation**

- You need a **high-torque, 270 rotary actuator** for industrial automation.

- Your system already uses **SMC pneumatic components**, ensuring seamless integration.

- **Speed and reliability** are critical, and you can accommodate the **noise and space requirements** of pneumatic operation.

- The application does **not** require continuous rotation or extreme precision.

- You need **full 360 rotation** (e.g., a continuous-rotation pneumatic or electric actuator).

- **Noise reduction** is a priority (e.g., electric servo actuators may be quieter).

- Your environment has **extreme temperature or humidity** without proper air treatment.

- **Space is extremely limited**, and the piping requirements for pneumatic systems are a concern.

For most **heavy-duty, cycle-intensive applications** where pneumatic systems are already in use, the **CRB1BW50-270S is a well-engineered, cost-effective solution**. Ensure proper **air filtration, pressure regulation, and mounting** to maximize its lifespan and performance.

Details:

Mounting: Basic / direct mount. Condition: Used Good / Tested for free rotation. It shows typical used wear minor scuffs, dust, and surface marks from prior use see all photos, but the shaft turns smoothly it appears fully functional. Used SMC CRB1BW50-270S single vane rotary actuator in good working condition.

This is a heavy-duty, compact vane-style pneumatic rotary actuator commonly used in automation, robotics, indexing tables, and machinery. No auto switches included. Ports: Side and axial NPT. Rotation: 270.

Body Size: 50mm bore. Made in Japan. Perfect for replacement or project use. Max Pressure: 1.0 MPa 145 PSI.

part #: crb1bw50270s prices

• $75.00-$99.95

specifications linactuat:

• brand: Smc
• mpn: Crb1bw50-270s
• part type: Pneumatic Actuator
• product condition: New Other
• max pressure: 1 Mpa
• reference sku: 1709553

payments linactuat:

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

general linactuat:

• condition: Used
• Industrial Automation Motion Controls > Rotary Linear Motion > Rotary Actuators

shipping linactuat:

• service: UPS Ground Saver
• class: Economy
• type: Calculated
• cost: $8.74
• carrier: UPS
• transit: 4-8 Days

returns linactuat:

• policy: No Returns

seller linactuat:

• rating: 98.9%
• # reviews: 1322
• city: Mayville, Michigan

offer linactuat:

• best offers: True
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• sold: 0
• started: May 31, 2026

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