Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X100-100B
The AirTAC Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X100-100B 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 0 to 100 mm on the machine — no shims, no part change.
- BoreØ25 mm
- Max stroke100 mm
- Adjustable range0–100 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 SDAJ25X100-100B
The AirTAC SDAJ25X100-100B is a double-acting compact cylinder featuring a 25mm bore and an external adjustable extend stop. By turning the R (M8x1.25) screw, you shorten the forward stroke on-site across a 0 to 100mm window without changing parts. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this size, delivering 245.4N push at 0.5MPa.
This thin riveted-body design saves axial mounting depth where round-body or profile units will not fit. The unit includes a male-thread M8x1.25 piston rod and a fixed NBR bumper at each end to decelerate the stroke. Note this SKU lacks a piston magnet, so it cannot accept magnetic switches.
Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X100-100B Technical Specifications
| Model | Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X100-100B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø25 mm |
| Max stroke | 100 mm |
| Adjustable range | 0 – 100 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 100 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 SDAJ25X100-100B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 25 | Bore size in mm. |
| ×100 | Maximum stroke length in mm. |
| -100 | 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 SDAJ25X100-100B Is Used
Trial Positioning Jigs
Dial the extend stop from 0 to 100mm during prototype runs to find the exact 12.5kg vertical lift point before locking the M8x1.25 rod.
Changeover Diverters
Quickly reset the mechanical stop for different package sizes on a packaging line without swapping cylinders or shims.
Compact Assembly Presses
Fit the short riveted body into tight axial spaces while maintaining 245.4N push at 0.5MPa for light pressing tasks.
Is the Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X100-100B the Right Cylinder?
When sizing pneumatics, verify your force needs both ways: the SDAJ20 bore provides 157.1N push at 0.5MPa, while the SDAJ32 bore yields 402.1N push at 0.5MPa. This 25mm bore generates 245.4N push at 0.5MPa, translating to a safe working load around 147N or a vertical lift of roughly 12.5kg with a 2:1 margin.
Choose this male-rod M8x1.25 model for setups requiring frequent on-machine stroke tuning. Remember that a plain cylinder drifts when air is lost or the valve is centred; the fixed bumper only decelerates near the end and the R screw is a mechanical stop, not a lock. For load holding without live pressure, install an external rod lock or pilot-operated check valve. Confirm your 25mm bore, 100mm stroke, 100mm window, M5x0.8 port, and male thread before ordering.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 0–100 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 SDAJ25X100-100B FAQ
At 0.5MPa it provides 245.4N push and 206.2N pull. At 0.7MPa it provides 343.6N push and 288.6N pull. The theoretical maximum push is 50kgf at 1.0MPa.
The R (M8x1.25) screw shortens the extend stop by up to 100mm, giving a usable forward range of 0-100mm. This SKU features a male M8x1.25 piston rod and lacks a magnet, so it cannot use reed or electronic switches.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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