Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20 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 45 to 65 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke65 mm
- Adjustable range45–65 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 SDAJ40X65-20
The AirTAC SDAJ40X65-20 is a compact double-acting double-rod cylinder built for tight axial footprints. Its short riveted body saves mounting depth where larger profile or round-body units cannot fit. An external M12x1.25 R adjuster screw lets you dial the extend stop directly on the machine, shortening the forward end-position anywhere between 45 and 65 mm without swapping shims or parts.
Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore. End-of-travel shock is handled by a fixed NBR bumper, which decelerates the piston but is not an adjustable air cushion. Note this specific SKU lacks a piston magnet, so it cannot host reed or electronic switches.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20 Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 65 mm |
| Adjustable range | 45 – 65 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 20 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 SDAJ40X65-20
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×65 | Maximum stroke length in mm. |
| -20 | 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 SDAJ40X65-20 Is Used
Tooling Changeover
Dial the extend stop from 45 to 65 mm during fixture swaps to align clamps perfectly without machining new spacers.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20 the Right Cylinder?
When sizing this 40 mm bore, look at both adjacent options. Choose the 40 mm bore if your changeover routines require on-site extend tuning across a 20 mm window.
Confirm your parameters: 40 mm bore, 65 mm maximum stroke, 20 mm adjustability, and a PT1/8 air port. This unit has a female M8x1.25 rod-end thread with a 16 mm rod diameter. Because it lacks the -S magnet option, position sensing is unavailable here. Remember that a plain cylinder does not hold position on air loss or valve centering; the fixed bumper only decelerates near the end. For secure load holding without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 45–65 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 SDAJ40X65-20 FAQ
The adjustment screw does not alter these force values.
Turning the M12x1.25 R screw shortens the extend stop by up to 20 mm, giving a usable range of 45 to 65 mm. This acts only as a mechanical end stop, not a mid-stroke lock. The cylinder will not hold a load if air pressure is lost; use an external rod lock for holding.
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Related AirTAC SDAJ Cylinders
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