Airtac SAIJ100 Adjustable Cylinder SAIJ100AX105-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX105-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 105mm 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
- Stroke105 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX105-75S
The AirTAC SAIJ100X105-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stopper for precise stroke manipulation. It delivers a robust 3927N push force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks. By turning the integrated adjuster screw, you can trim the nominal 105mm stroke back by up to 75mm, creating a wide 30-105mm usable travel window without changing the physical cylinder.
This specific configuration features a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance in humid or mildly aggressive environments. The integrated magnet (-S) supports position sensing via AirTAC CMSE reed switches and DMSE solid-state electronic sensors housed within the dual-side sensor grooves. The rear adjuster acts purely as a travel stop to fine-tune the end position during commissioning; it does not lock the load mechanically.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX105-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX105-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 105 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 SAIJ100AX105-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×105 | 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 SAIJ100AX105-75S Is Used
Product Changeover Tuning
Quickly adjust the end-stop from 30 to 105mm when switching product sizes on a packaging line, eliminating the need to swap out physical hard stops.
Machine Setup Calibration
Dial in the exact retraction point during initial commissioning using the rear screw, fine-tuning the 3927N thrust contact without external shims.
Variable End-Stop Forming
Set precise material forming depths on the fly, using the wide adjustment window to accommodate different material thicknesses with a single actuator.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX105-75S the Right Cylinder?
Select this 100mm bore cylinder when your application requires substantial thrust—stepping down to an 80mm bore reduces the 0.5 MPa push force to 2513N, while moving up to a 125mm bore increases it to 6136N. The 75mm adjustment range is particularly valuable for machine changeovers, allowing operators to dial in a new end position from 30 to 105mm on the fly instead of physically swapping cylinders or adding external stops. To replace an ISO 15552 unit, match the 100mm bore, 105mm stroke, 75mm adjustment, PT tapered port threads, and the -S magnet requirement.
Because the 105mm stroke is relatively short, side-load stress on the 25mm rod is minimal, but the rod thread (M20x1.5) provides rigid load coupling. Remember that the rear adjuster and air cushions only decelerate the stroke end; they do not hold the load without live air. For true fail-safe load holding, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead of relying on the stopper.
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 SAIJ100AX105-75S FAQ
At a 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 801 kgf of push force.
The rear adjuster screw acts as a mechanical stopper that lets you trim the effective travel down from the 105mm nominal stroke. This creates a usable 30-105mm travel window, allowing you to set the exact end position during commissioning without removing the cylinder.
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