
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X80-20B is a genuine double-acting COMPACT cylinder (Ø32mm bore) whose extend end-position is set by an external M10×1.25 adjustment screw. You can dial the stroke anywhere from 60 to 80 mm on the machine — no shims, no part change.
The AirTAC SDAJ32X80-20B is a compact double-acting single-rod cylinder built for tight axial mounting spaces where a round-body or profile variant will not fit. A short riveted body houses a 32mm bore and 12mm piston rod, while the external R (M10x1.25) adjuster screw lets you dial the extend end-position anywhere between 60 and 80mm directly on the machine.
Turning the screw sets the mechanical stop but leaves the effective area untouched, delivering 402.1N of push force at 0.5MPa—identical to a standard SDA of this size. This SKU features a male M10x1.25 rod thread and uses a fixed NBR bumper at each end to decelerate the stroke, rather than an adjustable air cushion. Because it lacks the -S magnet code, it cannot accept reed or electronic switches.
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X80-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 80 mm |
| Adjustable range | 60 – 80 mm |
| Adjuster thread (R) | M10×1.25 |
| Port size | PT1/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M6×1.0 F / M10×1.25 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. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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).
Dial the extend stop from 60 to 80mm via the R screw to adapt the 402.1N thrust to varying jig heights without fabricating new spacers.
Fine-tune the 12mm rod extension on-site to accommodate different box profiles, relying on the fixed NBR bumper to absorb the end shock.
Set a precise mechanical stop for seating bearings, ensuring the 20.5kg safe vertical lift capacity is applied accurately without bottoming out.
Choosing this 32mm bore gives 402.1N push at 0.5MPa. If your setup needs less force, the SDAJ25 provides 245.4N; if you require more thrust, the SDAJ40 yields 628.3N. With a 2:1 safety margin, this unit offers a safe working load of roughly 241N, translating to a vertical lift capacity of about 20.5kg.
This model is ideal for operators needing on-site stroke tuning during changeovers without swapping parts. Keep in mind that a plain cylinder does not hold its load if air is lost or the valve is centred; the piston drifts and the fixed bumper only decelerates near the end. For load holding without live pressure, install an external rod lock or a pilot-operated check valve. Configuration: 32mm bore, 80mm max stroke, 20mm adjust window, PT1/8 port, male M10x1.25 rod thread, no magnet.
Quick checklist
It delivers 402.1N push and 345.6N pull at 0.5MPa, 563N push and 483.8N pull at 0.7MPa, with a theoretical maximum of 82kgf at 1.0MPa.
The M10x1.25 screw shortens the extend stop from the 80mm maximum down to 60mm. It is a mechanical stop, not a mid-stroke lock; the cylinder cannot hold a load on air loss, so use an external rod lock for holding.
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