Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X60-50S
The AirTAC Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X60-50S 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 10 to 60 mm on the machine — no shims, no part change.
- BoreØ25 mm
- Max stroke60 mm
- Adjustable range10–60 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 SDAJ25X60-50S
The AirTAC SDAJ25X60-50S is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. An M8x1.25 adjuster screw lets you dial the extend position anywhere between 10 and 60 mm directly on the machine, eliminating the need for shims or part swaps during changeovers. Because the adjuster sets the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, delivering 245.4 N of push at 0.5 MPa.
This 25 mm bore unit integrates a built-in piston magnet for AirTAC reed or electronic switches. It carries a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. The short riveted body saves valuable axial mounting depth where larger profile cylinders cannot fit.
Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X60-50S Technical Specifications
| Model | Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X60-50S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø25 mm |
| Max stroke | 60 mm |
| Adjustable range | 10 – 60 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 50 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 SDAJ25X60-50S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 25 | Bore size in mm. |
| ×60 | Maximum stroke length in mm. |
| -50 | 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 SDAJ25X60-50S Is Used
Tooling Changeover
Dial the extend stop from 10 to 60 mm via the M8 screw to accommodate varied part heights on a single fixture without machining new spacers.
Carton Flap Folding
Fine-tune the 245.4 N push stroke on-site to gently fold varying box flaps without crushing the corrugated material.
Trial Positioning
Use the 50 mm adjustment window to find the exact extension point during R&D testing before locking down a final mechanical stop.
Is the Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X60-50S the Right Cylinder?
When sizing this actuator, consider the neighboring bores: stepping down to the SDAJ20 yields 157.1 N of push at 0.5 MPa, while moving up to the SDAJ32 provides 402.1 N. The 25 mm bore offers a calculated safe working load of roughly 147 N (about 60 percent of the 245.4 N capacity) and can vertically lift approximately 12.5 kg with a 2:1 safety margin. Choose this specific model if your fixture requires frequent on-site stroke tuning across a wide 50 mm adjustment window.
Confirm the 60 mm maximum stroke, 50 mm window, M5x0.8 port, and female M5x0.8 rod-end thread suit your mounting layout. The included -S magnet enables position sensing. Remember that a plain cylinder does not hold its load on air loss or when the valve is centered; the piston drifts and the bumper only decelerates near the end. For secure load holding without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 10–60 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 SDAJ25X60-50S FAQ
This 25 mm bore cylinder generates 245.4 N push and 206.2 N pull at 0.5 MPa, and 343.6 N push at 0.7 MPa. Its theoretical maximum push is 50 kgf at 1.0 MPa. The M8x1.25 adjuster screw changes the stop position only, not the force output.
Turning the R screw shortens the extend stroke by up to 50 mm, giving a usable range of 10 to 60 mm. Retract remains full length. The -S suffix denotes a built-in piston magnet compatible with AirTAC reed or electronic solid-state switches mounted in the body sensor grooves.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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