Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-50
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX425-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 425mm 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
- Stroke425 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 SAIJ100AX425-50
The AirTAC SAIJ100X425-50 is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated rear stroke adjuster. It provides a usable travel window of 375 to 425 mm, enabling precise end-position tuning at commissioning without the need to swap out the unit or bolt on external stops.
This model features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It supports AirTAC CMSE reed and DMSE electronic sensors, giving you reliable position feedback options.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 425 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 SAIJ100AX425-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×425 | 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 SAIJ100AX425-50 Is Used
Variable End-Stop Tuning
Dial in the exact 375 to 425 mm travel distance during machine commissioning to accommodate varying product dimensions without changing the cylinder.
Product Size Changeover
Quickly adjust the retract end-position on automated lines when switching between different product sizes, minimizing downtime and mechanical rework.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-50 the Right Cylinder?
The 50 mm adjustable stroke range is ideal for product changeovers on a line, allowing you to dial in the exact end-stop mechanically. Because the stroke is 425 mm, the 25 mm piston rod is highly susceptible to side-loading; always use an external guide to prevent binding and premature seal wear.
When matching this cylinder for an ISO 15552 replacement, verify the 100 mm bore, 425 mm stroke, 50 mm adjustment range, PT thread type, and the required mounting accessory from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the SAIJ mounting set omits FB, CA, CB, and CR brackets. The rear adjuster acts only as a travel stop and does not hold the load without live air; for dead-stop holding, consider the SAIL or BSAI series.
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 SAIJ100AX425-50 FAQ
At the maximum operating pressure of 1.0 MPa, it delivers up to 801 kgf.
The rear adjuster acts as a mechanical stop that allows you to trim the effective stroke back by up to 50 mm from the 425 mm nominal length, giving you an adjustable travel window of 375 to 425 mm. It is a travel stop, not a lock, and does not hold the load without live air pressure.
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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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