SMC 10-CDUJB8-20DM | Clean Room Mini Free Mount Cylinder CUJ Series 8mm Bore 20mm Stroke Double-Acting Magnetic Piston Auto-Switch Ready
SMC
$34.69
The SMC 10-CDUJB8-20DM is a clean room specification mini free mount cylinder from the CUJ series with an 8mm bore and 20mm stroke. Part number decoded: CDUJ = CUJ mini free mount, B = basic, 8 = bore mm, 20 = stroke mm, D = double-acting, M = magnetic piston. The 8mm bore at 20mm stroke provides an unusually high stroke-to-bore ratio for the CUJ series, enabling longer travel distances from a very compact actuator platform.
The 8mm bore generates approximately 30N at 0.6 MPa, placing it between the 6mm (~17N) and 10mm (~47N) CUJ options in force output. The 20mm stroke is the longest standard travel available at this bore size, making it suitable for small part transfer, shuttle mechanisms, mini-gate actuation, and sensor positioning where long travel is needed but force requirements are modest. The magnetic piston enables external auto-switch mounting for end-of-stroke position detection switches sold separately for this SKU (no pre-mounted switch suffix). The free mount body installs from any surface without mounting brackets, and the clean series (10-) packaging ensures Particle Grade 1 compliance for semiconductor and pharmaceutical clean rooms.
The CDUJB8-20DM provides maximum stroke (20mm) at 8mm bore. For shorter travel at the same bore, see CDUJB8-8DM, CDUJB8-10DM, or CDUJB8-15DM. For more force, step up to CDUJB10 (10mm bore, ~47N). For position sensing, pair with SMC D-M9P series auto switches. RoHS compliant. Free mount body mounts from any direction without brackets.
- Series:
- 10-CUJ (Clean Room)
- Cylinder Type:
- Mini Free Mount
- Action:
- Double-Acting
- Rod:
- Single Rod
- Bore:
- 8mm
- Stroke:
- 20mm
- Piston:
- Magnetic
- Auto-Switch:
- Compatible (Sold Separately)
- Force at 0.6 MPa:
- ~30N
- Mounting:
- Through-Hole Free Mount
- Clean Room Grade:
- Particle Generation Grade 1
- Certifications:
- RoHS
