
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-40B 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 5 to 45 mm on the machine — no shims, no part change.
The AirTAC SDAJ32X45-40B is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M10x1.25) screw, you can dial the forward end-position down by up to 40 mm, yielding a usable extend range of 5 to 45 mm directly on the machine without changing parts. Because the adjuster only sets the mechanical stop and not the piston area, output force remains identical to a standard SDA of this bore, delivering about 402.1 N of push at 0.5 MPa.
This specific SKU includes a male M10x1.25 piston rod thread and lacks a piston magnet, meaning it cannot host reed or electronic switches without switching to the -S variant. The short riveted body saves valuable axial mounting depth where larger profile cylinders will not fit. End-of-stroke deceleration is handled strictly by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 45 mm |
| Adjustable range | 5 – 45 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. 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. |
| ×45 | 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 5 to 45 mm extend stop during initial part setup, allowing operators to fine-tune the approach without fabricating custom spacers.
Rapidly reconfigure the forward stroke for different product heights using the R screw, leveraging the 402.1 N push force to handle varied clamping demands.
Set the mechanical stop to push cartons of varying widths precisely, relying on the fixed NBR bumper to absorb the end-of-stroke shock.
When sizing this 32 mm bore actuator, evaluate your neighbors: stepping down to the SDAJ25 yields 245.4 N of push at 0.5 MPa, while stepping up to the SDAJ40 provides 628.3 N. The 32 mm bore here provides a safe working load of roughly 241 N (about 60% of its 402.1 N capacity), translating to a vertical lift capability of approximately 20.5 kg with a 2:1 safety margin.
Choose this male-rod (-B) configuration when your tooling requires an externally threaded M10x1.25 attachment point, and ensure your setup avoids side loading. The on-machine 5 to 45 mm adjustability is ideal for trial positioning during frequent changeovers. Remember that a plain SDAJ does not hold position or load when air is lost or the valve is centered; the fixed bumper only decelerates near the end, so integrate an external rod lock or pilot-operated check valve for load holding without live pressure.
Quick checklist
This 32 mm bore double-acting cylinder provides 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 external M10x1.25 screw shortens the extend stroke by up to 40 mm, giving a usable range of 5 to 45 mm. This screw acts only as a mechanical stop and does not lock the piston; for load holding without live air pressure, you must use an external rod lock or pilot-operated check valve.
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