Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100S
The AirTAC SAIJ100X140-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 3927N of push force at 0.5 MPa and provides a usable travel window of 40 to 140 mm, enabling precise end-position tuning without external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This specific configuration incorporates a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. It uses a PT tapered G1/2 port and relies on variable air cushions at both ends to decelerate the load. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 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 SAIJ100AX140-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×140 | 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 SAIJ100AX140-100S Is Used
Machine Changeovers
Dial in the exact end-stop from 40 to 140 mm during product size transitions without swapping the physical cylinder or adding external mechanical stops.
Press Fit Tuning
Fine-tune the engagement depth of a 3927N pressing operation at commissioning, relying on the rear adjuster to set the precise travel limit.
Variable End Positioning
Provide a flexible travel window on an automated line where the rear stopper is adjusted to accommodate varying material thicknesses or package sizes.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100S the Right Cylinder?
Choose this 100mm bore actuator when a machine requires high thrust (3927N push at 0.5 MPa) alongside significant setup flexibility. The 100mm adjustment range allows the effective stroke to be dialed back from 140mm to as little as 40mm, making it ideal for product changeovers on a production line. If an application needs less force, stepping down to an 80mm bore yields 2513N, while moving up to a 125mm bore provides 6136N.
Because the nominal stroke is 140mm, side-load risks are moderate, but an external guide should still be considered for heavy loads. For load-holding without live air, this plain SAIJ cylinder is insufficient; an external rod lock, a pilot-operated check valve, or an AirTAC SAIL (air-released lock) / BSAI (clamp-lock) cylinder would be required. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. To match this exact SKU in a dimensionally interchangeable ISO 15552 footprint, specify the 100mm bore, 140mm stroke, 100mm adjustment, PT G1/2 port, SUS420J2 rod, and -S magnet.
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 SAIJ100AX140-100S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At the maximum rated pressure of 0.9 MPa, the push force increases to 7068N.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke from the nominal 140 mm down to 40 mm. It only sets the travel end and does not lock or hold the load without continuous live air pressure.
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