Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 115mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke115 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40
The AirTAC SAIJ100X115-40 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 115 mm stroke that can be fine-tuned backward by up to 40 mm, yielding a precise 75-115 mm usable travel window. Delivering 3927 N of push force at 0.5 MPa, it handles substantial workloads while retaining a standard ISO 15552 mounting footprint.
This model features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads. The rear adjustment screw acts purely as a mechanical stop to dial in the end position during commissioning; it is not a lock and cannot hold the load without live air pressure. For position holding without air, an external rod lock or related SAIL/BSAI series is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 115 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×115 | 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 SAIJ100AX115-40 Is Used
Product Changeover
Dial in the 75-115 mm travel window during format changes without physically swapping the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end position at commissioning using the rear adjuster to absorb mechanical tolerances and ensure precise placement.
High-Force Positioning
Leverage 3927 N of push force at 0.5 MPa to move heavy jigs or fixtures while retaining the ability to trim the stroke by up to 40 mm.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40 the Right Cylinder?
Choose this 100 mm bore when an application requires high thrust (3927 N at 0.5 MPa) alongside variable end-stop positioning. If the workload is lighter, stepping down to an 80 mm bore yields 2513 N of push force, whereas moving up to a 125 mm bore provides 6136 N. The adjustable stroke is ideal for machine setups requiring frequent product-size changeovers, eliminating the need to swap cylinders or bolt on external stops.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 115 mm stroke, 40 mm adjustment range, PT G1/2 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because this is a 115 mm stroke, the 25 mm rod and M20x1.5 thread handle side loads well, but an external guide is recommended for any lateral forces.
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 SAIJ100AX115-40 FAQ
The rear adjuster screw lets you shorten the 115 mm nominal stroke by up to 40 mm, creating a 75-115 mm travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa the push force increases to 5497 N.
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Standard models usually ship in 3-4 days.
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