SMC CDRB1BW80-180S-XF — CRB1 Series 80mm Bore 180° Single Vane Rotary Actuator
2026-06-07The SMC CDRB1BW80-180S-XF is a vane-type pneumatic rotary actuator from the CRB1 series, featuring an 80 mm bore, 180° rotation angle, single vane construction, and double shaft output. With a maximum output torque of 37.6 N·m at 1.0 MPa supply pressure, this compact and lightweight actuator is ideal for part flipping and orienting, sorting gate control, quarter-turn valve actuation, and a wide range of rotary positioning applications in automated assembly lines.
Product Specifications
| Parameter | Value |
|---|---|
| Manufacturer | SMC |
| Series | CRB1 (Vane Type Rotary Actuator) |
| Model | CDRB1BW80-180S-XF |
| Bore Size | 80 mm |
| Rotation Angle | 180° (Single Vane) |
| Vane Type | Single Vane |
| Shaft Type | Double Shaft — long shaft with keyway + 4 chamfers |
| Mounting Style | Basic Type — body can be used as direct mount flange |
| Port Location | Body side surface (Side Ported) |
| Port Size | Rc 1/4 |
| Max. Operating Pressure | 1.0 MPa (145 psi) |
| Min. Operating Pressure | 0.15 MPa (21.8 psi) |
| Proof Pressure | 1.5 MPa |
| Max. Output Torque | 37.6 N·m |
| Allowable Kinetic Energy | 0.398 J |
| Rotation Time Adjustment | 0.1 ~ 1 s/90° |
| Cushion Type | Rubber Bumper (internal) |
| Shaft Diameter | 17 mm |
| Allowable Radial Load | 490 N |
| Allowable Thrust Load | 490 N |
| Fluid | Air (lubrication-free) |
| Ambient / Fluid Temperature | 5 ~ 60°C |
| Body Material | Aluminium Alloy (Anodized) |
| Shaft Material | Stainless Steel |
| Weight | Approx. 2 kg |
| Compliance | RoHS Compliant |
| Auto Switch Compatible | D-M9 series (360° circumferential mount) |
Model Number Breakdown
- CDRB1: CRB1 series vane type rotary actuator
- B: Basic mounting style
- W: Double shaft output (long shaft key + 4 chamfers)
- 80: 80 mm bore size
- 180S: 180° rotation angle, Single vane
- XF: Special option code
Key Features and Benefits
Constant Torque Output Throughout the Entire Stroke
The defining advantage of a vane-type rotary actuator is its consistent torque output across the full rotation angle — unlike rack-and-pinion types where torque drops at the ends of stroke. The CDRB1BW80-180S-XF delivers a stable 37.6 N·m of torque at 1.0 MPa supply pressure for reliable rotary load driving. Torque is directly proportional to supply pressure, enabling precise control through a proportional regulator.
Compact Design with High Torque Density
The CRB1 series is known for its space-efficient design. The CDRB1BW80-180S-XF measures approximately 177.5 mm (overall length) × 110 mm (height) × 90 mm (width) yet produces up to 37.6 N·m of torque — a torque density that far exceeds comparable rack-and-pinion rotary actuators. The actuator body can be used directly as a mounting flange, eliminating the need for additional brackets.
Double Shaft Output with 360° Switch Mounting
The double shaft design allows users to take rotary power from both sides simultaneously, or use one side for an encoder or sensor. The built-in magnetic piston ring supports D-M9 series compact auto switches (M9B/M9N/M9P/M9BV/M9NV/M9PV and more), which can be mounted anywhere along the full 360° circumference of the body for end-of-stroke position detection.
Internal Rubber Bumper for Smooth Deceleration
The integrated rubber bumper absorbs impact energy at the end of the stroke for smooth stopping. With an allowable kinetic energy of 0.398 J, the actuator is well-suited for medium-speed, high-load applications. Rotation time is adjustable via external speed controllers in the range of 0.1 to 1 second per 90 degrees.
Lubrication-Free Operation — Environmentally Compliant
Designed for lubrication-free operation, the actuator requires no oil mist lubricator for normal service. The anodised aluminium alloy body and stainless steel shaft provide excellent corrosion resistance and mechanical strength. RoHS compliant for global environmental standards.
Applications
- Part Flipping and Orienting: component flipping and orientation adjustment in automated assembly lines
- Sorting and Diverting: conveyor sorting gate and material diverting guide drives
- Valve Actuation: automatic open/close control of quarter-turn ball valves, butterfly valves, and plug valves
- Pick-and-Place Systems: rotary motion segments in pick-and-place operations
- Welding Positioners: workpiece welding orientation adjustment
- Packaging Machinery: rotary actions for labelling, sealing, and discharge stations
- Fixturing and Clamping: rotary locking mechanisms for test benches and clamping fixtures
Selection Guide: Vane Type vs. Rack-and-Pinion
| Characteristic | Vane Type (CRB1 Series) | Rack-and-Pinion (e.g. CRQ2/MSQ) |
|---|---|---|
| Torque Output | Constant throughout stroke | Drops at stroke ends |
| Footprint | Extremely compact, small radial profile | Longer body, more lateral space needed |
| Load Capacity | Moderate, with built-in bearings | High, handles larger radial/thrust loads |
| Rotation Angles | 90°/100°/180°/270° | 90°/180°/190° (adjustable stops) |
| Best For | Space-constrained, constant torque needs | Heavy loads, fine angle adjustment |
Related Models
| Model | Description |
|---|---|
| CDRB1BW50-180S | 50 mm bore, 180°, single vane |
| CDRB1BW63-180S | 63 mm bore, 180°, single vane |
| CDRB1BW100-180S | 100 mm bore, 180°, single vane |
| CDRB1BW80-270S | 80 mm bore, 270°, single vane (ultra-wide angle) |
| CRB1BW80-90D | 80 mm bore, 90°, double vane (2× torque) |
FAQ
Q: How do I choose between the CDRB1BW80-180S-XF single vane and a double vane model (90D/100D)?
The single vane (180S) provides 180° rotation with standard torque. The double vane (90D/100D) approximately doubles the torque output but limits rotation to 90° or 100°. Choose based on your angle requirement versus load torque: large angles need single vane; heavy loads over short angles favour double vane.
Q: Does this model support adjustable rotation angle?
The standard model has a fixed 180° rotation angle (angle tolerance +4°). For precise angle adjustment, select a sub-model with the angle adjusting unit, which offers an adjustable range of 0° to 240°. External mechanical stops can also be used for angle limiting.
Q: Can auto switches be mounted for position detection?
Yes. The CDRB1BW80-180S-XF includes a built-in magnet ring and supports D-M9 series auto switches, mountable anywhere along the full 360° circumference of the body. Compatible models include: M9B (2-wire DC), M9N (3-wire NPN), M9P (3-wire PNP), M9NV (3-wire NPN vertical), M9PV (3-wire PNP vertical), and more.
In stock and available for bulk orders. Contact us for a quotation, selection assistance, or technical consultation.