Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X80-100B
The AirTAC Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X80-100B 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 80 mm on the machine — no shims, no part change.
- BoreØ25 mm
- Max stroke80 mm
- Adjustable range0–80 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 SDAJ25X80-100B
The AirTAC SDAJ25X80-100B is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M8x1.25) screw, you can dial the extend end-position anywhere between 0 and 80 mm directly on your machine, eliminating the need for shims or part swaps. Retract remains full length. The adjuster sets the mechanical stop, so force equals a standard SDA of this bore, delivering 245.4 N push at 0.5 MPa.
Built with a short riveted body, this unit saves axial mounting depth where round-body or profile cylinders will not fit. It uses a 10 mm piston rod with a male M8x1.25 thread end. End shock is handled by a fixed NBR bumper that decelerates the piston, which is not an adjustable air cushion. Note this SKU lacks a piston magnet and cannot take a magnetic switch.
Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X80-100B Technical Specifications
| Model | Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X80-100B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø25 mm |
| Max stroke | 80 mm |
| Adjustable range | 0 – 80 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 SDAJ25X80-100B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 25 | Bore size in mm. |
| ×80 | 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 SDAJ25X80-100B Is Used
Variable Length Gauging
Dial the extend stop from 0 to 80 mm to test multiple part lengths on a single fixture without machining new spacers.
Short-Stroke Clamping
Use the 245.4 N push at 0.5 MPa to secure components, relying on the fixed NBR bumper to absorb the final end shock.
Rapid Changeover Lines
Swap product families quickly by readjusting the R (M8x1.25) screw on the machine, saving axial depth with the riveted body.
Is the Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ25X80-100B the Right Cylinder?
When sizing this 25 mm bore, check both neighbours: stepping down to the SDAJ20 yields 157.1 N push at 0.5 MPa, while moving up to the SDAJ32 provides 402.1 N push at 0.5 MPa. This model outputs 245.4 N push at 0.5 MPa, translating to a safe working load of roughly 147 N (about 60 percent of capacity) and a vertical lift capability near 12.5 kg with a 2:1 margin.
Choose this specific configuration if your fixture requires on-site stroke tuning across a wide 0-80 mm window. Confirm your bore, 80 mm stroke, 100 mm adjust window, M5x0.8 port, and male M8x1.25 rod thread. Because a plain cylinder does not hold its load on air loss or valve centring, integrate an external rod lock or pilot-operated check valve if drift is unacceptable.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 0–80 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 SDAJ25X80-100B FAQ
This 25 mm bore cylinder delivers 245.4 N push and 206.2 N pull at 0.5 MPa, 343.6 N push and 288.6 N pull at 0.7 MPa, with a theoretical maximum of 50 kgf at 1.0 MPa.
The R (M8x1.25) screw shortens the extend stroke by up to 100 mm, giving a usable extend range of 0-80 mm. This SKU has no -S magnet code, so it cannot accept reed or electronic switches; add the -S option for sensing.
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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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