
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X50-40B 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 50 mm on the machine — no shims, no part change.
The AirTAC SDAJ32X50-40B is a compact double-acting double-rod cylinder built for applications requiring exact extend positioning. A front R thread M10x1.25 adjustment screw lets you shorten the outward stroke on-site across a 10 to 50 mm window, removing the need for shims or part swaps during changeovers.
This specific SKU features a male M10x1.25 piston rod thread and a 12 mm rod diameter, operating via a PT1/8 port. The short riveted body drastically reduces axial mounting depth where space is tight. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, and this base configuration lacks a piston magnet, meaning magnetic switches cannot be fitted unless you specify the -S variant.
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X50-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 50 mm |
| Adjustable range | 10 – 50 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 40 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. |
| ×50 | 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).
Dial in the exact clamping depth on machining fixtures using the R screw, adjusting the extend stop between 10 and 50 mm without swapping cylinders.
Speed up product family changeovers on packaging lines by turning the M10x1.25 adjuster to set new outward positions on the fly.
When sizing this 32 mm bore, evaluate your force requirements against its neighbours.
Choose this male-rod (-B) configuration if your tooling requires an externally threaded M10x1.25 attachment point. The 40 mm adjustment window is ideal for machines needing frequent trial positioning. Remember that a standard cylinder does not hold position upon air loss or valve centering; the piston drifts, and the fixed bumper only decelerates near the end. For suspended loads, integrate an external rod lock or pilot-operated check valve.
Quick checklist
The theoretical maximum push is 82 kgf at 1.0 MPa.
The R M10x1.25 screw shortens the extend stroke by up to 40 mm, allowing usable outward travel from 10 to 50 mm. This SKU includes a male M10x1.25 piston rod thread. Note that this non-S model lacks a piston magnet, so it cannot accept reed or electronic switches.
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