Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB
The AirTAC Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB is a genuine double-acting COMPACT cylinder (Ø25mm bore) whose extend end-position is set by an external M8×1.25 adjustment screw. You can dial the stroke anywhere from 25 to 35 mm on the machine — no shims, no part change.
- BoreØ25 mm
- Max stroke35 mm
- Adjustable range25–35 mm
- Adjuster threadM8×1.25
- Port sizeM5×0.8
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB
The AirTAC SDAJ25X35-10SB is a compact double-acting single-rod cylinder featuring an external extend stop. An M8x1.25 adjuster screw lets you dial the outward stroke anywhere between 25 and 35 mm directly on the machine, avoiding part swaps. Because the screw only sets the mechanical stop, output remains identical to a standard SDA at 245.4 N push at 0.5 MPa.
This variant includes a built-in piston magnet for AirTAC reed or electronic switches and a male M8x1.25 piston rod end. The short riveted body minimizes axial mounting depth where space is tight. End shock is handled by a fixed NBR bumper, which decelerates the piston but is not an adjustable air cushion.
Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB Technical Specifications
| Model | Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø25 mm |
| Max stroke | 35 mm |
| Adjustable range | 25 – 35 mm |
| Adjuster thread (R) | M8×1.25 |
| Port size | M5×0.8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M5×0.8 F / M8×1.25 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 10 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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.
Model Code: Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 25 | Bore size in mm. |
| ×35 | Maximum stroke length in mm. |
| -10 | 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).
Where the Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB Is Used
Tooling Changeovers
Dial the extend stop from 25 to 35 mm during fixture swaps, letting one cylinder adapt to multiple part heights without machining new spacers.
Transfer Diverters
Fine-tune the pusher endpoint on the fly to route varying carton sizes, using the 245.4 N thrust at 0.5 MPa to positively index items.
Prototype Positioning
Sweep the mechanical stop during trial assembly to find the exact 25-35 mm contact point, then lock the M8x1.25 screw for production runs.
Is the Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB the Right Cylinder?
When sizing this 25 mm bore, check both neighbors. Stepping down, the SDAJ20 delivers 157.1 N push at 0.5 MPa; stepping up, the SDAJ32 provides 402.1 N push at 0.5 MPa. This model fits applications needing roughly 147 N safe working load, assuming a 60 percent safety margin of the 245.4 N figure, or a 12.5 kg vertical lift with a 2:1 buffer. Choose this unit when you need on-site stroke tuning during setup or tooling changeovers.
Confirm the 35 mm maximum stroke, 10 mm adjustment window, and M5x0.8 air port. The -S code provides the magnetic piston, and -B specifies the male M8x1.25 rod thread. Remember that a plain cylinder does not hold position on air loss; the fixed bumper only decelerates near the end. For load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 25–35 mm
- ✓ Force at your working pressure
- ✓ Access to reach the R adjuster
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the M8×1.25 adjuster after setting the stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X35-10SB FAQ
At 0.5 MPa it provides 245.4 N push and 206.2 N pull. At 0.7 MPa it yields 343.6 N push and 288.6 N pull. The theoretical maximum push is 50 kgf at 1.0 MPa.
The M8x1.25 adjuster screw shortens the extend end by up to 10 mm, giving a usable 25-35 mm range without altering force. The -S code adds a piston magnet for AirTAC reed or electronic switches.
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Standard models are processed and dispatched in 3-5 business days.
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