Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-20S 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 SAIJ100AX140-20S
The AirTAC SAIJ100X140-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. Its external stopper allows you to trim the 140 mm nominal stroke back by up to 20 mm, creating a precise 120-140 mm usable travel window for exact end-position tuning. This eliminates the need to swap out the entire cylinder or bolt on external stops during machine commissioning.
This variant features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance, PT tapered port threads, and a built-in magnet (-S) for use with AirTAC CMSE reed and DMSE solid-state sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the variable air cushions at both ends decelerate the load smoothly. Remember, the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-20S |
|---|---|
| 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 SAIJ100AX140-20S
| 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 SAIJ100AX140-20S Is Used
Machine Setup Tuning
Dial in the exact 120-140 mm end position during initial commissioning to perfect a pressing or forming operation without physically swapping cylinders.
Product Size Changeover
Quickly adjust the rear stopper by up to 20 mm to accommodate different package lengths on a packaging line, reducing downtime between product runs.
Heavy Fixture Positioning
Leverage the 5497N push force at 0.7 MPa to move heavy pallets or industrial fixtures, fine-tuning the travel limit to match hard mechanical stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-20S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (3518N push at 0.5 MPa) lacks the thrust for moving heavier fixtures, but a 125 mm bore would be physical overkill. The 20 mm adjustment range is ideal for product-size changeovers on a conveyor line, letting operators dial in the exact 120-140 mm end position without changing the cylinder. Because the stroke is under 300 mm, side-load stress is manageable, though the robust 25 mm rod and M20x1.5 thread handle standard loads well.
For load-holding applications without live air, note that this SAIJ cylinder's rear adjuster is a stop, not a lock; consider an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) instead. When replacing an ISO 15552 unit, match the 100 mm bore, 140 mm stroke, 20 mm adjustment, PT G1/2 ports, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
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 SAIJ100AX140-20S FAQ
It features a rear adjusting screw that acts as an external stopper, allowing you to shorten the 140 mm nominal stroke by up to 20 mm. This provides a usable travel window of 120-140 mm, which can be fine-tuned during commissioning without changing the cylinder or adding external stops.
At an operating pressure of 0.7 MPa, the SAIJ100X140-20-S provides a push force of 5497N and a pull force of 3681N. It operates at speeds between 30-800 mm/s and uses a G1/2 port.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.