
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X75-20S 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 55 to 75 mm on the machine — no shims, no part change.
The AirTAC SDAJ32X75-20S is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M10x1.25) screw, you shorten the forward stroke on-site across a 55 to 75 mm window, eliminating the need for shims or part swaps during machine commissioning. Because the adjuster sets the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, yielding 402.1 N of push at 0.5 MPa.
Its short riveted body drastically reduces axial mounting depth where a larger profile cylinder will not fit. The unit includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic solid-state switches along the body grooves. End-of-travel deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X75-20S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 75 mm |
| Adjustable range | 55 – 75 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. |
| ×75 | 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 in the extend stop from 55 to 75 mm via the R screw during product family changeovers, ensuring precise positioning without machining new spacers.
Apply the 402.1 N push force at 0.5 MPa to fold varying carton sizes, fine-tuning the mechanical stop on the fly to prevent crushing the packaging.
Safely lift a 20.5 kg payload with a 2:1 margin, using the external adjuster to set exact upper travel limits in compact vertical elevators.
When sizing this 32 mm bore, evaluate your force requirements against its neighbours. Stepping down, the SDAJ25 provides 245.4 N of push at 0.5 MPa; stepping up, the SDAJ40 delivers 628.3 N at the same pressure. This model yields a safe working load of roughly 241 N (about 60% of its 402.1 N capacity) and can vertically lift approximately 20.5 kg with a 2:1 safety margin. Choose the SDAJ32X75-20S specifically when an application requires precise on-machine extend tuning between 55 and 75 mm.
Confirm the 32 mm bore, 75 mm maximum stroke, 20 mm adjust window, PT1/8 port, and the female M6x1.0 rod-end thread suit your mounting interface. The -S code ensures switch readiness, but remember a plain cylinder drifts if air is lost or the valve is centred. The fixed bumper only decelerates near the end of travel; for secure load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
This double-acting cylinder generates 402.1 N push and 345.6 N pull at 0.5 MPa, and 563 N push and 483.8 N pull at 0.7 MPa. The theoretical maximum push force is 82 kgf at 1.0 MPa.
The M10x1.25 R screw mechanically shortens the extend end position anywhere between 55 and 75 mm without altering the 402.1 N force. The -S code denotes a built-in piston magnet for tracking position with AirTAC reed or electronic switches.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.