Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-40
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-40 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 40 to 80 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke80 mm
- Adjustable range40–80 mm
- Adjuster threadM12×1.25
- Port sizePT1/8
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-40
The AirTAC SDAJ40X80-40 is a compact double-acting double-rod cylinder featuring an external adjustable extend stop. An M12x1.25 adjuster screw lets you dial the forward end-position anywhere between 40 and 80 mm directly on the machine, eliminating the need for shims or part swaps.
Built with a short riveted body, this unit saves axial mounting depth where a round-body cylinder cannot fit. It uses a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot accept reed or electronic switches; adding the -S option enables sensing.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-40 Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-40 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 80 mm |
| Adjustable range | 40 – 80 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 40 mm. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-40
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | Maximum stroke length in mm. |
| -40 | 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).
Where the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-40 Is Used
Machining Clamp Depth
Dial the extend stop from 40 to 80 mm via the M12x1.25 screw to set exact clamping depth on raw castings without machining custom spacers.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-40 the Right Cylinder?
When sizing this 40 mm bore, evaluate your thrust needs both ways. Choose this unit if your fixture requires on-site extend tuning across its 40 mm window.
Confirm the 80 mm maximum stroke, 40 mm adjustability window, and PT1/8 port. This base configuration has a female M8x1.25 rod-end thread and no magnet. Remember that a plain cylinder does not hold its load on air loss or valve centering; the fixed bumper only decelerates near the end. For a locked position without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 40–80 mm
- ✓ Force at your working pressure
- ✓ Access to reach the R adjuster
- ✓ Magnet (S) for sensors?
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 SDAJ40X80-40 FAQ
The adjuster screw changes the stop position, not the force.
Turning the external R (M12x1.25) screw shortens the extend end-position by up to 40 mm, giving a usable forward range of 40 to 80 mm. The retract stroke remains full, and the screw acts purely as a mechanical stop, not a mid-stroke lock.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC SDAJ Cylinders
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