
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-75S 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 0 to 75 mm on the machine — no shims, no part change.
The AirTAC SDAJ40X75-75S is a compact double-acting double-rod cylinder featuring an external M12x1.25 adjustment screw that dials the extend stop from 0 to 75 mm directly on your machine.
Its short riveted body drastically reduces axial mounting depth compared to round-body alternatives, fitting into tight machine envelopes.
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-75S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 75 mm |
| Adjustable range | 0 – 75 mm |
| Adjuster thread (R) | M12×1.25 |
| Port size | PT1/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M8×1.25 F / M14×1.5 male (B) |
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
The adjustment screw shortens the extend stroke by up to 75 mm. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 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.
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Maximum stroke length in mm. |
| -75 | Adjustable window (10/20/30/40/50/75/100 mm). |
| S / B | S = 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).
Dial the extend stop from 0 to 75 mm during rapid tooling changeovers to accommodate varying part heights without fabricating new spacers.
Prototyping stations benefit from the M12x1.25 fine-pitch adjuster, allowing engineers to find the exact 32 kg vertical lift point before locking the collar.
Choose this specific model when your fixture requires on-site stroke tuning across a wide 0 to 75 mm window without changing parts. Confirm the PT1/8 port, the 16 mm rod with female M8x1.25 threading, and the presence of the S magnet for reed or electronic switches.
Remember that a plain compact cylinder does not hold a load if air pressure drops or the valve centers; the piston will drift. The fixed bumper only decelerates motion near the end of travel and the R screw acts as a mechanical stop, neither functioning as a brake. For secure load holding without live pressure, integrate an external rod lock or a pilot-operated check valve into your circuit.
Quick checklist
Turning the external R screw shortens the extend stroke anywhere between 0 and 75 mm without altering force. The included S magnet works with AirTAC reed or electronic switches for position feedback, while a fixed NBR bumper decelerates the end of travel.
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