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AirTAC SDAJ Series · Adjustable-Stroke Compact Cylinder

Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S

The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S is a genuine double-acting COMPACT cylinder (Ø40mm bore) whose extend end-position is set by an external M12×1.25 adjustment screw. You can dial the stroke anywhere from 65 to 75 mm on the machine — no shims, no part change.

  • BoreØ40 mm
  • Max stroke75 mm
  • Adjustable range65–75 mm
  • Adjuster threadM12×1.25
  • Port sizePT1/8
  • CushionFixed NBR bumper (both ends)
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About the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S

The AirTAC SDAJ40X75-10S is a double-acting compact cylinder featuring an external R (M12x1.25) adjustment screw that dials the extend stop from 65 to 75 mm directly on your machine. A built-in piston magnet enables position feedback.

Its short riveted body minimizes axial mounting depth where longer profile or round-body units will not fit. The unit relies on a fixed NBR bumper to decelerate the stroke end, meaning it is not an adjustable air cushion. Operating speed spans 30-500 mm/s, and the PT1/8 port matches the 40 mm bore specification.

Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S Technical Specifications

ModelAirtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S
SeriesSDAJ compact adjustable-stroke cylinder
Bore sizeØ40 mm
Max stroke75 mm
Adjustable range65 – 75 mm
Adjuster thread (R)M12×1.25
Port sizePT1/8
Acting typeDouble acting
Rod end threadM8×1.25 F / M14×1.5 male (B)
Operating pressure0.15 – 1.0 MPa
Proof pressure1.5 MPa
Temperature-20 to +70 °C
Speed range30 – 500 mm/s
CushionFixed NBR bumper (both ends)

The adjustment screw shortens the extend stroke by up to 10 mm. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.

Theoretical Output Force (Ø40mm)

PressurePush forcePull force
0.5 MPa528 N528 N
0.7 MPa739 N—
Max (@1.0 MPa)108 kgf

SDAJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod SDA push of the same bore. Actual usable force is lower than theoretical due to friction.

Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S

SDAJCompact double-acting cylinder with adjustable stroke.
40Bore size in mm.
×75Maximum stroke length in mm.
-10Adjustable window (10/20/30/40/50/75/100 mm).
S / BS = magnet; B = male-thread rod (both optional).

Thread: PT standard. Related SDA-family variants: SDA (fixed stroke), SDAD (double rod), SSA/STA (single acting), SDAT (duplex), SDAW (duplex-end).

Where the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S Is Used

precision_manufacturing

Tooling Changeover

Dial in the 65-75 mm extend stop during die swaps to accommodate varying part thicknesses without fabricating new spacers.

vertical_align_center

Vertical Lift Stops

Set precise upper travel limits for 32 kg lifts, relying on the mechanical stop rather than pneumatic pressure alone.

Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S the Right Cylinder?

This specific configuration includes the -S magnet for AirTAC reed or electronic switches and a 10 mm adjustment window over a 75 mm stroke.

Operators who require frequent changeovers or trial positioning benefit from the on-machine tuning. Remember that a plain cylinder does not hold its load on air loss or when the valve is centred; the piston drifts and the fixed bumper only decelerates near the end. For secure load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.

Quick checklist

  • ✓ Need on-machine stroke fine-tuning?
  • ✓ Target position within 65–75 mm
  • ✓ Force at your working pressure
  • ✓ Access to reach the R adjuster
  • ✓ Magnet (S) for sensors?
Ask an Engineer

Installation & Maintenance Notes

  • check Use clean air filtered to 40µm or finer.
  • check Keep within 0.15 – 1.0 MPa operating pressure.
  • check Lock the M12×1.25 adjuster after setting the stroke.
  • check Avoid side load on the piston rod.
  • check Front/rear covers are riveted — do not dismantle.
  • check Installation by qualified personnel per AirTAC docs.

Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-10S FAQ

The theoretical maximum push is 128 kgf at 1.0 MPa.

Turning the M12x1.25 adjuster screw shortens the extend stroke by up to 10 mm, yielding a usable 65-75 mm range. The -S code denotes a built-in piston magnet designed to trigger AirTAC reed or electronic solid-state switches.

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Related AirTAC SDAJ Cylinders

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