Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50 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 SAIJ100BX750-50
The AirTAC SAIJ100X750-50 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 7068N of push force at 0.9 MPa and features a 100mm bore. The integrated adjustment mechanism allows you to fine-tune the effective travel within a 700-750mm window, providing exact end-position calibration without needing external stops. This model incorporates a SUS304 stainless steel piston rod for superior corrosion resistance and uses a PT tapered port thread for secure pneumatic connections.
Because the nominal 750mm stroke is substantial, the 25mm rod diameter and M20x1.5 rod thread are designed to handle significant side loads, though an external guide is still recommended for unsupported spans. The rear adjuster acts purely as a travel stop to set deceleration alongside the adjustable air cushions; it does not hold the load without live air. For position holding without pressure, consider the SAIL or BSAI series. This extruded aluminum barrel design omits the FB, CA, CB, and CR mounts, utilizing a focused set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting options.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50 |
|---|---|
| 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 SAIJ100BX750-50
| 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 SAIJ100BX750-50 Is Used
Variable End-Stop Positioning
Dial in the exact clamping distance between 700 and 750mm during machine setup, allowing precise tuning of the end position without swapping out the entire cylinder.
Product Size Changeover
Quickly adjust the cylinder's retract stop by up to 50mm to accommodate varying package sizes or product lengths on a conveyor line during production transitions.
Commissioning Fine-Tune
Use the rear adjuster to perfect the stroke end-point during initial commissioning, absorbing mechanical tolerances without adding external stopper blocks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX750-50 the Right Cylinder?
Choose this 100mm bore adjustable cylinder when your application requires heavy thrust up to 7068N at 0.9 MPa, and stepping down to an 80mm bore (providing 4523N) would be insufficient. The SAIJ100X750-50 is selected over a fixed-stroke SAI when you need on-the-fly end-position tuning during commissioning or product changeovers. The rear screw allows up to 50mm of adjustment, creating a 700-750mm usable travel window. When replacing an ISO 15552 cylinder, match the 100mm bore, 750mm stroke, PT port thread, SUS304 rod material, and the reduced SAIJ mounting set. Given the 750mm stroke, always use an external guide rail to manage side loads and prevent rod deflection.
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 SAIJ100BX750-50 FAQ
At an operating pressure of 0.9 MPa, the SAIJ100X750-50 generates a push force of 7068N and a pull force of 3681N. The maximum allowable operating pressure is 1.0 MPa.
The rear adjusting screw acts as an external stopper that shortens the effective stroke. For the SAIJ100X750-50, this creates a usable travel window of 700 to 750mm, allowing you to trim the stroke by up to 50mm without modifying the cylinder mount.
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