Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 650mm 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
- Stroke650 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-75S
The AirTAC SAIJ100X650-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 575 to 650 mm. It delivers 5497 N of push force at 0.7 MPa and features a robust 25 mm piston rod. This variant includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and a magnet (-S) for position sensing.
The integrated rear stopper allows precise end-position tuning during commissioning without adding external stops. It uses a PT G1/2 port and offers a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts strictly as a travel stop and deceleration marker, not a load-holding lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 650 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 SAIJ100BX650-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×650 | 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 SAIJ100BX650-75S Is Used
Product Changeovers
Dial in the end-stop up to 75 mm during format changes without replacing the cylinder or reworking machine mounts.
Long-Stroke Assembly
Handles 575-650 mm travel for large part placement, using the 25 mm rod to manage heavy loads.
Commissioning Calibration
Fine-tune the retract end position during setup to absorb mechanical tolerances and achieve precise stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-75S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 3518 N push at 0.7 MPa) is insufficient, but a 125 mm bore (8590 N) would be overkill. The adjustable 75 mm stroke range is ideal for product changeovers on a line, allowing you to dial in the exact end-stop without swapping the cylinder. For load-holding without live air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster cannot hold loads.
Because the 650 mm stroke is long, an external guide is recommended to prevent excessive side-loading on the SUS304 rod. To match this ISO 15552 replacement exactly, specify: 100 mm bore, 650 mm stroke, 75 mm adjustment, PT G1/2 port, and the -S magnet compatible with CMSE reed and DMSE electronic 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 SAIJ100BX650-75S FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 5148 N of pull force. The maximum push force is 7068 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 650 mm nominal stroke by up to 75 mm, giving a usable travel window of 575 to 650 mm. It sets the end position but does not lock the load without live air.
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