Airtac SAIJ100 Adjustable Cylinder SAIJ100X140-30S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100X140-30S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke140 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 SAIJ100X140-30S
The AirTAC SAIJ100X140-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The built-in -30 mm adjustment screw allows you to trim the effective travel down from the 140 mm nominal stroke, creating a precise 110-140 mm usable window. This is ideal for dialing in end positions during commissioning without adding external stops.
This -S variant includes a magnet for position sensing and is wired for AirTAC CMSE reed and DMSE electronic switches. It features a carbon steel piston rod with an M20x1.5 thread, G1/2 ports, and variable air cushions at both ends. The extruded aluminum barrel carries sensor grooves on both sides. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X140-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X140-30S |
|---|---|
| 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 | 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 SAIJ100X140-30S
| 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 SAIJ100X140-30S Is Used
Product Changeovers
Dial in the 110-140 mm travel window during format changes on a packaging line, using the rear screw to set new end positions without changing hardware.
Machine Setup
Fine-tune the retract position during initial commissioning to achieve exact alignment, preventing the need for machined spacers or custom cylinder lengths.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X140-30S the Right Cylinder?
The adjustable 110-140 mm window is perfect for machines running mixed product sizes, letting operators change the retract end-stop on the fly instead of swapping cylinders or fabricating fixed spacers. If your setup cannot tolerate any drift without air pressure, note that the rear adjuster is strictly a travel stop, not a lock; you would need an SAIL or BSAI cylinder for true load-holding.
For an exact ISO 15552 replacement match, verify the 100 mm bore, 140 mm nominal stroke, 30 mm adjustment range, PT tapered port threads, and the -S magnet option. The M20x1.5 rod thread handles high side loads well, but because 140 mm is a moderately long stroke, ensure your load is guided externally to prevent rod binding.
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 SAIJ100X140-30S FAQ
If you increase the operating pressure to 0.9 MPa, the push force rises to 7068 N.
The rear adjuster acts as a mechanical stop that lets you shorten the 140 mm nominal stroke by up to 30 mm, creating a usable travel window of 110-140 mm. It only sets the end position and does not lock the load without live air pressure.
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