CRB1BX80-180S: Vane Type Rotary Actuator, The Core Rotational Power in a Compact Space
2026-02-25
Product Positioning
The CRB1BX80-180S is a single vane type rotary actuator from SMC’s CRB1 Series. It utilizes a vane mechanism to convert the pressure energy of compressed air into rotational motion of the output shaft. Its compact circular body, high-reliability bearing support, and direct mounting capability make it an ideal actuator for rotational tasks in automated production lines, such as workpiece flipping, indexing positioning, valve switching, and material diverting. It is widely used in packaging machinery, assembly equipment, electronics manufacturing, and various industrial scenarios requiring angular motion control.
Core Highlights: Vane Driven, Rigid and Reliable
Vane Type Structure for Compactness
Employing a single vane design, compressed air pushes the vane inside the chamber to rotate, driving the output shaft to achieve oscillating motion. The structure is simple and compact, delivering strong rotational force within a limited space.
A bore size of Ø80 mm provides ample output torque in this medium-class specification.
180° Standard Swing Angle for Broad Application
The suffix “180S” indicates a swing angle of 180°, one of the most commonly used rotation angles in industrial automation. It is ideal for common applications like workpiece flipping, material diverting, and valve on/off control.
The series also offers other angles such as 90° and 270° to meet different process requirements.
Single Shaft Output for Flexible Installation
The “BX” in the model number signifies that the shaft output is on one side of the rotary actuator. This simplifies mechanical design by allowing direct connection to external loads.
Bearing Support for High Load Capacity
Internal high-reliability bearings are used to support both thrust loads and radial loads simultaneously. This enhances the overall rigidity and durability of the actuator, allowing loads to be mounted directly on the output shaft without needing external support.
Direct Body Mounting for Space Savings
The body can be mounted directly onto equipment without the need for additional mounting brackets or adapter plates. This simplifies the machine structure, saving installation space and cost.
Optional Auto Switches for Intelligent Control
The cylinder body is designed to accommodate D-M9□ series compact auto switches. This enables non-contact detection and feedback of the piston position (i.e., the endpoints of the rotation angle), facilitating integration with PLCs and other control systems.
Model Number Decoding
| Code | Meaning | Description |
|---|---|---|
| CRB1 | Series Code | SMC CRB1 Series Vane Type Rotary Actuator |
| B | – | Series细分标识 (Possibly Basic Type or specific specification) |
| X | Output Shaft Type | Shaft output on one side |
| 80 | Bore Size | 80 mm (Tube Nominal Diameter) |
| 180 | Swing Angle | 180° |
| S | – | Series identifier or specific specification code |
Specifications Overview
| Parameter | Specification | Source |
|---|---|---|
| Model | CRB1BX80-180S | |
| Series | CRB1 | |
| Type | Vane Type Rotary Actuator / Single Vane Type | |
| Bore Size | 80 mm | |
| Swing Angle | 180° | |
| Output Shaft Type | Shaft output on one side | |
| Operating Pressure Range | 0.15 to 1.0 MPa | |
| Torque Range | 20 to 50 N·m (Depending on specification) | |
| Allowable Kinetic Energy | 0.398 J | |
| Port Location | Body side surface | |
| Port Size | Rc (Standard) or G (Optional) | |
| Output Shaft Shape | Single shaft with 4 chamfers | |
| Mounting Method | Basic type (Direct mounting possible) | |
| Piping Method | Screw-in piping type | |
| Rotation Starting Point | Left 90° (Reference point) | |
| Magnetic Switch | Not included as standard (Compatible with D-M9□ series compact switches) | |
| Body Shape | Circular | |
| Application/Environment | Standard | |
| Rigidity/Accuracy | Standard |
Structure and Features
According to SMC technical data, key features of the CRB1 series include:
- High Reliability: Optimized seal structure and bearing support ensure long-term stable operation.
- Direct Mounting: The body can be mounted directly onto equipment without additional adapter plates.
- Bearing Support: Supports both thrust and radial loads, enhancing load capacity.
- Two Porting Options: Available with either side porting or axial porting. This model features side porting.
Vane Type vs. Rack & Pinion Type Rotary Actuators
| Feature | Vane Type (CRB1BX80-180S) | Rack & Pinion Type (e.g., MSQA Series) |
|---|---|---|
| Structure | Vane directly drives the output shaft | Piston drives a rack, which drives a pinion gear |
| Compactness | More compact, shorter axial length | Relatively longer |
| Swing Angle | Typically ≤ 270° (This model: 180°) | Available in 90°, 180°, 360°, etc. |
| Torque | Torque proportional to pressure | Torque proportional to pressure, determined by design |
| Application | Confined spaces, fixed angles, light to medium loads | High torque, long life, high precision positioning |
Application Scenarios
- Workpiece Flipping: 90° or 180° flipping of workpieces in automated assembly lines.
- Material Diverting: Changing the flow direction of items on conveyors.
- Valve Control: On/off control for ball valves and butterfly valves.
- Indexing Positioning: Indexing and positioning for multi-station rotary tables.
- Packaging Machinery: Rotational actions like film reel changeover, folding cartons.
- Electronics Assembly: Flipping PCBs, adjusting component orientation.
Summary: A Reliable Choice for Compact Rotational Actuation
The CRB1BX80-180S vane type rotary actuator provides an efficient and reliable rotational power solution for automated equipment with its compact circular body, robust bearing support, and standard 180° swing angle. It eliminates the need for complex external supports with its direct body mounting capability, significantly simplifying mechanical design. Its compatibility with D-M9□ series magnetic switches facilitates position sensing and automated control. Choosing the CRB1BX80-180S means equipping your automation with a compact, high-torque, and easily integrated rotary actuation unit—a smart choice for workpiece flipping, material diverting, and various angle control applications.
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