
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X30-20SB 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 30 mm on the machine — no shims, no part change.
The AirTAC SDAJ32X30-20SB 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 10 to 30 mm window without swapping shims or parts. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard 32 mm bore SDA, delivering 402.1 N of push at 0.5 MPa.
This thin riveted-body design saves valuable axial mounting depth where larger profile cylinders cannot fit. It includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches, and a male-thread piston rod (-B, M10x1.25) for secure tooling attachment. End shock is absorbed by a fixed NBR bumper, which decelerates the stroke end but is not an adjustable air cushion.
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X30-20SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 30 mm |
| Adjustable range | 10 – 30 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. |
| ×30 | 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 M10x1.25 stop screw to find the exact 10 to 30 mm extend position during prototype runs, locking the 402.1 N force precisely where needed without part changes.
Adjust the extend endpoint on packaging lines in seconds to accommodate different carton depths, leveraging the compact riveted body to fit tight transfer arms.
Safely lift 20.5 kg loads with a 2:1 margin by setting the mechanical stop, ensuring the male M10x1.25 rod threads securely into your lifting tooling.
When sizing this unit, evaluate both neighboring bores: the SDAJ25 yields 245.4 N push at 0.5 MPa, while the SDAJ40 provides 628.3 N. The 32 mm bore is ideal when your application requires a safe working load around 241 N (roughly 60 percent of the 402.1 N capacity) or a vertical lift of approximately 20.5 kg with a 2:1 safety margin. Choose this specific model if your fixture setup demands frequent on-machine stroke tuning to dial in exact end positions.
Confirm the 32 mm bore, 30 mm maximum stroke, 20 mm adjust window, and PT1/8 port match your pneumatic supply. The -S code enables solid-state or reed sensing, while the -B code specifies the male M10x1.25 rod end. Remember that a plain cylinder does not hold position or load when air is lost or the valve is centered; the bumper only decelerates near the end. For load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
This 32 mm bore double-acting cylinder provides 402.1 N push and 345.6 N pull at 0.5 MPa, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum push of 82 kgf at 1.0 MPa. The adjustable stop does not alter these force figures.
Turning the external R (M10x1.25) screw shortens the forward stroke by up to 20 mm, giving a usable extend range of 10 to 30 mm. The included -S magnet allows tracking by AirTAC reed or electronic switches along the body grooves.
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