The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X25-30SB is a genuine double-acting COMPACT cylinder (Ø100mm bore) whose extend end-position is set by an external M27×2.0 adjustment screw. You can dial the stroke anywhere from 0 to 25 mm on the machine — no shims, no part change.
The SDAJ100X25-30SB is a double-acting compact cylinder engineered to deliver substantial force within a minimal axial footprint. A built-in piston magnet supports AirTAC reed or electronic switches for precise end-position detection, while the male M26x1.5 piston rod thread accommodates heavy-duty tooling attachments. The short riveted body conserves valuable mounting depth where larger profile or round-body units cannot fit.
An external R (M27x2.0) adjuster screw allows you to dial the extend stop directly on the machine, shortening the stroke by up to 30 mm to achieve a usable 0-25 mm extend position without changing parts. Because the adjuster sets the mechanical stop rather than the piston area, force remains identical to a standard SDA of this bore, yielding 3927 N of push at 0.5 MPa. End shock is managed solely by a fixed NBR bumper, which decelerates the stroke end but is not an adjustable air cushion.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X25-30SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 25 mm |
| Adjustable range | 0 – 25 mm |
| Adjuster thread (R) | M27×2.0 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M18×1.5 F / M26×1.5 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 30 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 | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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. |
|---|---|
| 100 | Bore size in mm. |
| ×25 | Maximum stroke length in mm. |
| -30 | 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 in 0-25 mm increments during press commissioning to achieve the exact insertion depth for large bearings without swapping mechanical shims.
Accommodate varying pallet thicknesses on a single line by turning the R M27x2.0 screw, leveraging the 3927 N push force to secure heavy loads securely.
Lift loads up to 200.2 kg with a 2:1 safety margin and fine-tune the upper stop position on-site, ensuring delicate components contact their destination safely.
Selecting this 100 mm bore provides a theoretical maximum push of 801 kgf at 1.0 MPa, making it suitable for heavy pressing and clamping tasks. If your application requires less force, sizing down to the SDAJ80 yields 2513.3 N of push at 0.5 MPa, offering a more compact footprint and lower air consumption. This model is ideal for setups requiring frequent on-site stroke tuning to accommodate varying material thicknesses without disassembling the fixture.
When sizing vertical loads, a safe working figure is approximately 2356 N, representing about 60% of the 3927 N push at 0.5 MPa, which translates to a vertical lift capacity of roughly 200.2 kg with a 2:1 safety margin. Confirm your required extend window falls within the 0-25 mm range and that the PT3/8 air port matches your supply lines. Note that the fixed NBR bumper only decelerates the stroke end; a plain cylinder does not hold a load on air loss or valve centring, so integrate an external rod lock or pilot-operated check valve for secure load holding.
Quick checklist
This 100 mm bore cylinder delivers 3927 N push and 3524.9 N pull at 0.5 MPa, 5497.8 N push and 4934.8 N pull at 0.7 MPa, and a theoretical maximum push of 801 kgf at 1.0 MPa.
The R (M27x2.0) screw shortens the extend stroke by up to 30 mm, providing a usable extend range of 0-25 mm without altering the force. The included -S magnet enables positioning feedback via AirTAC reed or electronic switches.
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