
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-75 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 10 to 85 mm on the machine — no shims, no part change.
The AirTAC SDAJ32X85-75 is a double-acting compact cylinder featuring an external adjustable extend stop. A M10x1.25 adjuster screw lets you dial the outward stroke on-site anywhere from 10 to 85 mm, eliminating the need for shims or part swaps during changeovers.
The short riveted body drastically cuts axial mounting depth, fitting where round-body alternatives cannot. End-of-travel deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so position sensing is not supported without switching to the -S variant.
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-75 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 85 mm |
| Adjustable range | 10 – 85 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 75 mm. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 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. |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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 10 to 85 mm via the M10x1.25 screw to accommodate varying fixture heights during rapid product line changeovers.
Adjust the mechanical stop on the fly for different carton depths, letting the fixed NBR bumper absorb the end shock at cycle completion.
It is the right pick for setups demanding frequent on-machine stroke tuning.
Verify your parameters: 32 mm bore, 85 mm max stroke, 75 mm window, PT1/8 port, female M6x1.0 rod thread, and no magnet. Remember that a plain cylinder drifts when air is lost or the valve centers—the fixed bumper only softens the impact near the end and acts as a mechanical stop, not a lock. For secure load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
Turning the R (M10x1.25) external screw shortens the extend end position by up to 75 mm, giving a usable range of 10 to 85 mm. It sets the mechanical stop and does not alter the output force.
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