Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-40 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 SAIJ100X750-40
The AirTAC SAIJ100X750-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 5497N of push force at 0.7MPa and provides a usable travel window of 710 to 750mm, letting you dial back the stroke by up to 40mm during commissioning. The extruded aluminum barrel includes sensor grooves on both sides, and the standard carbon steel rod handles robust industrial loads.
This model uses a PT tapered G1/2 port and an M20x1.5 rod thread. The rear screw acts purely as a travel stop for end-position tuning and is not a locking device, meaning it will not hold a load without live air pressure. It supports a speed range of 30-800mm/s and relies on adjustable air cushions at both ends to decelerate the payload smoothly.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-40 |
|---|---|
| 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 SAIJ100X750-40
| 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 SAIJ100X750-40 Is Used
Product Changeover
Dial in the 710-750mm travel window on the fly to accommodate different package lengths on a packaging line without changing out the physical cylinder.
Machine Setup
Fine-tune the exact end-stop position during initial commissioning to perfect the alignment of heavy forming tools driven by the 5497N push force.
Variable End Stops
Adjust the retraction point precisely to push varying product sizes onto a conveyor, using the rear stopper to prevent over-travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-40 the Right Cylinder?
Choose this 100mm bore when a 63mm cylinder (2182N push at 0.5MPa) is insufficient, but an 80mm bore (2513N at 0.5MPa) leaves no margin for variation. The 40mm adjustment window is ideal for product changeovers, allowing you to fine-tune the end position without swapping the cylinder or adding external stops. If your machine requires true load-holding without continuous air pressure, consider the SAIL or BSAI series instead of relying on the adjuster.
Because the 750mm stroke is substantial, the M20x1.5 carbon steel rod will experience deflection under side loads; an external guide rail is recommended to prevent premature seal wear. For a direct ISO 15552 replacement match, verify the 100mm bore, 750mm stroke, 40mm adjustment, PT port, mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2), and whether a magnet is needed for CMSE or DMSE sensors.
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 SAIJ100X750-40 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 40mm, providing a usable travel range of 710 to 750mm. It functions as a mechanical stop to set the end position and does not lock the load without live air pressure.
At an operating pressure of 0.7MPa, the SAIJ100X750-40 provides a push force of 5497N and a pull force of 5497N. It can achieve a maximum push force of 7068N at 0.9MPa.
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