The SMC NCDQ2B50-30DM-A73
 The NCQ2 series (equivalent to CQ2 in some regions) consists of compact, double-acting, single-rod pneumatic cylinders designed for space-saving applications with high force output. The “A7” is likely a typo for an auto-switch model such as “A73” (a common reed auto-switch in the NCQ2 series). 

  • Series: NCQ2 (Compact Cylinder, Double Acting, Single Rod; equivalent to CQ2 in some regions)
  • Bore Size: 50 mm
  • Stroke Length: 30 mm
  • Action: Double acting (uses compressed air through two ports to extend and retract the piston)
  • Mounting: Through-hole/basic mounting (indicated by “B” in the part number, suitable for securing to rigid surfaces)
  • Magnet: Built-in magnet for auto-switch capability (indicated by “NCD” prefix)
  • Rod End: Male thread (indicated by “DM” in the part number, typically includes a rod-end nut)
  • Auto Switch: A73 (reed auto-switch, 2-wire, 24V DC/100V AC, with 0.5m lead wire and indicator light, direct-mounting, in-line entry; assumed based on common NCQ2 configurations)
  • Port Threads: 1/4" NPT (standard for 50 mm bore in NCQ2 series for North American models, per web results; Rc or G threads possible internationally)
  • Operating Pressure: 0.05–1.0 MPa (7–145 psi)
  • Piston Speed: 50–500 mm/s (adjustable with speed controllers)
  • Cushioning: Rubber bumper (standard for NCQ2 series)
  • Material: Anodized aluminum body (for corrosion resistance), stainless steel piston rod, NBR seals
  • Operating Temperature: -10 to 60°C (14 to 140°F, with auto-switch; confirm specific auto-switch limits)
  • Features:
    • Compact, lightweight design for space-constrained applications.
    • Through-hole mounting allows flexible installation with bolts passing through the cylinder body.
    • Auto-switch (A73) provides position feedback for automation systems.
    • Snap rings secure the head cover, allowing seal replacement.
    • Bore sizes in the NCQ2 series range from 12 mm to 100 mm, with strokes up to 300 mm (this model is 50 mm bore, 30 mm stroke).
  • Applications: Suitable for automation tasks requiring compact, high-force cylinders with position sensing, such as material handling, assembly, or pick-and-place in industries like automotive, electronics, or manufacturing.