SMC 11-CDQSB20-50D-M9P | Clean Room Compact Cylinder CQS Series 20mm Bore 50mm Stroke Double-Acting Guided Auto-Switch Mounted
SMC
$146.20
The SMC 11-CDQSB20-50D-M9P is a clean room specification compact cylinder from the CQS series with guided piston and pre-mounted auto-switch. Part number decoded: CDQS = CQS series double acting with guide, B = basic mount (both ends tapped), 20 = 20mm bore, 50 = 50mm stroke, D = option, M9P = pre-mounted auto-switch (solid state NPN open collector). The CQS series adds dual guide rods to the CQ2 compact platform, preventing piston rod rotation and side-load deflection.
The guided mechanism uses two precision guide rods parallel to the piston rod, constraining the rod tip to pure linear motion. This anti-rotation capability is essential when the cylinder drives tooling, grippers, or sensors that must maintain angular orientation throughout the stroke. Without guides, side loads from workpiece contact, offset tool mounting, or dynamic forces would cause the rod to deflect or rotate, leading to positioning errors, premature seal wear, and component damage.
The CDQSB20-50D-M9P comes with the M9P NPN auto-switch factory-installed for immediate position sensing. For the unguided CQ2 at 20mm bore, the CDQ2B20 provides a more compact option when anti-rotation is handled externally. For low-speed anti-stick-slip operation, the CDQSXB20 (CQSX series) adds velocity control for smooth, consistent motion. For longer guided strokes, the CXS dual-rod slide table provides extended ball bushing guides. Clean series (11-) fluorine grease. RoHS compliant.
- Series:
- 11-CQS (Clean Room)
- Cylinder Type:
- Compact Guided (Dual Rod)
- Action:
- Double-Acting
- Rod:
- Single Rod with Dual Guides
- Bore:
- 20mm
- Stroke:
- 50mm
- Mounting:
- Both Ends Tapped (B)
- Option:
- D
- Auto-Switch:
- M9P Pre-Mounted (NPN)
- Clean Room Grade:
- Enhanced (11-)
- Certifications:
- RoHS
