Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-75
The AirTAC SAIJ100X120-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 45 to 120 mm, allowing you to dial back the nominal 120 mm stroke by up to 75 mm during commissioning. Delivering a robust 3927 N push force at 0.5 MPa, it handles heavy positioning tasks with ease.
This variant features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and pairs with PT tapered port threads. The extruded aluminum barrel includes dual sensor grooves, and the rear stopper acts purely as a travel end-limit, not a lock, meaning live air is required to hold the load.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 120 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 SAIJ100AX120-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×120 | 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 SAIJ100AX120-75 Is Used
Product Size Changeovers
Leverage the 45-120 mm travel window to rapidly reconfigure end-stops for varying part lengths on a packaging line without changing the cylinder.
Heavy Forming Stops
Use the 3927 N push force at 0.5 MPa to drive heavy forming tools, relying on the rear adjuster to set the exact crush depth.
Machine Commissioning
Fine-tune the final retract position during setup, compensating for mechanical tolerance stack-ups without adding external stopper blocks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX120-75 the Right Cylinder?
Select this 100 mm bore when a smaller 80 mm cylinder (providing 2513 N push at 0.5 MPa) lacks the thrust for your tooling, but you need precise end-position tuning without swapping hardware. The 75 mm adjustment window is exceptionally wide, making it ideal for machines processing multiple product sizes on a single line. Because the stroke is 120 mm, standard mounting is straightforward without needing external guides.
To replace an ISO 15552 cylinder, match the 100 mm bore, 120 mm nominal stroke, 75 mm adjuster, PT G1/2 port, and your required mounting style. Note that SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR. If your application requires true load-holding without live air pressure, use an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ100AX120-75 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm, creating a usable travel window of 45 to 120 mm. It acts as a mechanical stop to set the end position and does not lock the load without live air.
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 SAIJ100AX120-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.