Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-100
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX425-100 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 SAIJ100AX425-100
The AirTAC SAIJ100X425-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 325 to 425 mm, allowing you to trim the nominal 425 mm stroke by up to 100 mm during machine setup.
This extruded aluminum profile cylinder omits the FB, CA, CB, and CR mounting styles, utilizing a reduced ISO 15552 set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. The piston rod is constructed from SUS420J2 stainless steel (code A) for enhanced durability against lateral stress, and fluid supply connects via PT G1/2 tapered ports.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-100 |
|---|---|
| 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 SAIJ100AX425-100
| 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 SAIJ100AX425-100 Is Used
Machine Setup & Changeover
Dial in the exact retract position within the 325-425 mm window during line changeovers without replacing the cylinder or adding external mechanical stops.
Variable End-Stop Diverter
Adjust the stroke length on the fly to accommodate different package sizes on a conveyor system, ensuring precise product routing and spacing.
Press Stroke Tuning
Fine-tune the end-of-stroke position on light assembly presses to compensate for material thickness variations, ensuring consistent clamping force.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX425-100 the Right Cylinder?
Choose this 100 mm bore adjustable cylinder when your application requires fine-tuning the retract end-position during commissioning or product changeover, avoiding the need to physically swap out a fixed-stroke SAI cylinder.
Because the 425 mm stroke creates a long unsupported rod extension, adding an external guide is highly recommended to manage side loads and prevent premature wear. Furthermore, the rear adjuster acts solely as a travel stop and does not hold the load without live air; for true load-holding without pneumatic pressure, specify an AirTAC SAIL or BSAI cylinder instead. When matching an ISO 15552 replacement, verify the 425 mm stroke, 100 mm bore, PT G1/2 port, and the selected mounting bracket.
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 SAIJ100AX425-100 FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. At 0.9 MPa, the push force increases to 7068 N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective travel from the nominal 425 mm down to 325 mm. This provides a 100 mm tuning window for precise end-position calibration without replacing the cylinder.
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