Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50S 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 SAIJ100BX750-50S
The AirTAC SAIJ100X750-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927 N of push force at 0.5 MPa. It features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. With a 750 mm nominal stroke and a 50 mm adjustment range, you can fine-tune the effective travel to any point within a 700-750 mm window during commissioning.
This adjustable stopper lets you dial in exact end positions without swapping the cylinder or adding external stops. The PT tapered port threads ensure a tight pneumatic seal, while the extruded aluminum barrel maintains standard ISO 15552 mounting dimensions. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50S |
|---|---|
| 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 SAIJ100BX750-50S
| 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 SAIJ100BX750-50S Is Used
Variable End-Stop Machining
Fine-tune the 700-750 mm travel window to accommodate different part lengths on a machining line without physically swapping out actuators.
Product Changeover Diverters
Quickly adjust the retract position by up to 50 mm during packaging line format changes to handle varying box dimensions on the fly.
Heavy Load Positioning
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets, using the rear screw to precisely set the final resting position.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50S the Right Cylinder?
Choose this 100 mm bore when an 80 mm cylinder (providing 2513 N push at 0.5 MPa) lacks the thrust for heavy actuation, but a 125 mm bore is oversized. The 50 mm adjustment window is ideal for product changeovers, allowing you to shift the end-of-stroke position dynamically rather than relying on a fixed-stroke SAI cylinder. To match this exact ISO 15552 footprint, specify a 100 mm bore, 750 mm stroke, 50 mm adjustment, PT ports, SUS304 (B) rod, and the -S magnet option.
Because the stroke is 750 mm, the 25 mm rod diameter needs external guidance to prevent excessive side-loading on the seals. For applications requiring the load to be held mechanically without continuous air pressure, this cylinder is insufficient; consider an AirTAC SAIL or BSAI locking 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 SAIJ100BX750-50S 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 acts as a mechanical stop, allowing you to shorten the 750 mm nominal stroke by up to 50 mm. This creates a usable travel window of 700-750 mm for fine-tuning end positions at commissioning.
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