Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 750mm 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
- Stroke750 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-100
The AirTAC SAIJ100X750-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a substantial 7068N push force at 0.9 MPa, utilizing a 25mm carbon steel rod with an M20x1.5 thread. The integrated rear stopper allows you to dial back the nominal 750mm stroke by up to 100mm, creating a highly flexible 650-750mm usable travel window for fine end-position tuning.
This adjustable feature eliminates the need to swap cylinders or bolt on external stops during machine setup or product changeover. It features variable air cushions at both ends to decelerate heavy loads smoothly across its 30-800mm/s speed range. The extruded aluminum barrel includes dual sensor grooves, though this specific configuration omits the -S magnet, meaning CMSE or DMSE electronic sensors cannot be used without a rod magnet upgrade.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 750 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 SAIJ100X750-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×750 | 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 SAIJ100X750-100 Is Used
Product Changeover
Quickly reconfigure the end-stop from 650 to 750mm when adapting machinery to run a different product size, avoiding physical cylinder replacement.
Transfer Positioning
Fine-tune the exact retraction point of a 100mm bore transfer actuator during commissioning to perfectly align with a moving conveyor.
Heavy Load Deceleration
Leverage the 36mm cushion stroke and adjustable rear stopper to safely absorb and tune the deceleration of heavy industrial loads.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-100 the Right Cylinder?
Selecting this 100mm bore model makes sense when your application requires the 3927N thrust available at 0.5 MPa, but you need on-the-fly end-position adjustments rather than a fixed 750mm stop. If your force requirements are lower, stepping down to an 80mm bore yields 2513N at 0.5 MPa. For higher force needs, a 125mm bore provides 6136N at 0.5 MPa. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR brackets.
Because the nominal stroke is 750mm, the 25mm rod needs external guidance to prevent excessive side-loading and buckling under heavy weights. Remember that the rear adjuster acts solely as a travel stop to set deceleration endpoints; it does not hold the load without live air pressure. For true load-holding without continuous air supply, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock. When replacing an ISO 15552 cylinder, match the 100mm bore, 750mm stroke, 100mm adjustment, G1/2 port, PT thread, and mounting style.
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 SAIJ100X750-100 FAQ
At an operating pressure of 0.5 MPa, the 100mm bore provides 3927N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N.
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective travel from the nominal 750mm down to 650mm. This provides a 650-750mm usable window for fine-tuning end positions without changing the cylinder.
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