Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-75S 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 SAIJ100BX750-75S
The AirTAC SAIJ100X750-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a generous 675-750 mm usable travel window, allowing you to dial back the 750 mm nominal stroke by up to 75 mm during commissioning without adding external stops. Delivering 7068 N of push force at 0.9 MPa, it is built for heavy-duty positioning.
This SKU features a SUS304 stainless steel rod (code B) for superior corrosion resistance and includes a magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the unit uses a PT tapered G1/2 port. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-75S |
|---|---|
| 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 SAIJ100BX750-75S
| 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 SAIJ100BX750-75S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 675 and 750 mm on automated machining centers to accommodate different part lengths without changing hardware.
Product Changeover Systems
Quickly adjust the stroke end-position on packaging lines when switching to a new carton size, minimizing downtime and eliminating external stop blocks.
Heavy-Duty Ejection
Leverage the 7068 N push force to reliably eject finished components from a press, using the 75 mm adjustment window to time the ejection distance perfectly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-75S the Right Cylinder?
Choose this 100 mm bore when the 80 mm variant (2268 N pull at 0.5 MPa) lacks the required thrust, but a 125 mm bore is oversized. The 75 mm adjustment is ideal for product changeovers, letting you fine-tune the retract end-position on the fly instead of swapping the entire cylinder for a fixed-stroke SAI. When matching an ISO 15552 replacement, verify the 750 mm stroke, 75 mm adjust, PT G1/2 port, and -S magnet.
Because the stroke extends to 750 mm, the M20x1.5 rod needs external guidance to prevent excessive side-loading and premature seal wear. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load-holding, consider an external rod lock or the SAIL/BSAI series.
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 SAIJ100BX750-75S FAQ
At an operating pressure of 0.9 MPa, this 100 mm bore cylinder provides 7068 N of push force and 5497 N of pull force.
The rear adjuster screw acts as an external stopper, allowing you to shorten the effective travel from the 750 mm nominal stroke down to 675 mm. It sets the end position but does not lock the load without continuous air pressure.
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