Airtac SAIJ100 Adjustable Cylinder SAIJ100AX25-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX25-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 25mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke25 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- 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 SAIJ100 Adjustable Cylinder SAIJ100AX25-20
The AirTAC SAIJ100X25-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 25mm stroke with a usable travel window of 5-25mm, allowing you to dial back the retract position by up to 20mm during machine setup.
This variant uses a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered port threads ensure a reliable, sealed connection. The rear adjuster acts purely as a travel stop for end-position tuning, not a load-holding lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX25-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX25-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX25-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX25-20 Is Used
Precision End-Stop Tuning
Dial in the exact 5-25mm retract position during machine commissioning to ensure precise part seating without machining custom spacers.
Product Size Changeover
Quickly adapt the cylinder's effective travel window on automated lines when switching between product variants of slightly different heights.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX25-20 the Right Cylinder?
The adjustable 5-25mm travel window is ideal for product changeovers where exact end-stops must be fine-tuned at commissioning without swapping cylinders or adding external stop blocks. For strokes of 300mm or more, an external guide is recommended to manage side-load, though this short 25mm stroke inherently minimizes rod deflection.
When specifying a replacement, ensure you match the 100mm bore, 25mm nominal stroke, 20mm adjustment range, PT port threads, and the standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that SAIJ omits FB, CA, CB, and CR mounts. Because this SKU lacks the -S magnet suffix, it does not support AirTAC CMSE or DMSE sensors. Remember that the rear adjuster is a stop, not a lock; for load-holding without live air, consider SAIL or BSAI cylinders.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX25-20 FAQ
At 0.7 MPa, the push force increases to 5497N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from its 25mm nominal length down to as little as 5mm, creating a 5-25mm usable travel window. It only sets the travel end and does not hold the load without live air pressure.
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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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