Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 125mm 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
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-100S
The AirTAC SAIJ100X125-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 3927N push force at 0.5MPa and features a 25-125mm usable travel window, letting you trim the 125mm nominal stroke by up to 100mm during commissioning. This built-in adjustability eliminates the need to swap cylinders or bolt on external stops when fine-tuning end positions.
This SKU is configured with an SUS420J2 stainless steel rod (code A) for enhanced durability against moisture, PT tapered port threads, and a -S magnet for position sensing. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 125 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 SAIJ100AX125-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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 SAIJ100AX125-100S Is Used
Product Changeovers
Quickly reconfigure the retract distance for varying package sizes on a conveyor line using the 100mm adjustment range.
End-Position Tuning
Fine-tune the exact end stop during machine commissioning to achieve precise seating without adding external mechanical stops.
Heavy-Duty Forming
Leverage the 3927N push force at 0.5MPa for pressing or holding applications where the exact travel distance varies per job.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-100S the Right Cylinder?
Select this 100mm bore cylinder when your application requires substantial thrust, stepping up from a 63mm bore that provides 1559N at 0.5MPa. The generous 100mm adjustment range is ideal for product-size changeovers on a packaging line, allowing operators to dial in the exact retract stop without changing the cylinder. For fixed-position tasks requiring no end-tuning, a standard SAI cylinder is a simpler alternative.
When matching an ISO 15552 replacement, verify the 100mm bore, 125mm stroke, 100mm adjustment, G1/2 port, and the -S magnet. Note that the rear adjuster and air cushion only set the travel end and decelerate the load; they do not hold the load without live air. For load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder. The 25mm rod and M20x1.5 thread handle high side loads, but any stroke over 300mm requires an external guide.
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 SAIJ100AX125-100S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 125mm nominal stroke down to as little as 25mm, providing a 25-125mm usable window without replacing the cylinder.
At 0.5MPa operating pressure, it provides 3927N of push force and 3681N of pull force. At 0.7MPa, the push force increases to 5497N.
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Standard models usually ship in 3-4 days.
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