Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 130mm 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.
- BoreØ125 mm
- Stroke130 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-10S
The AirTAC SAIJ125X130-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the effective travel by up to 10 mm. This creates a usable stroke window of 120 to 130 mm, which is ideal for fine-tuning end positions during machine commissioning without adding external stops. In the 125 mm bore class, it delivers 6136 N of pull force at 0.5 MPa and reaches a maximum of 1251 kgf at 1.0 MPa.
This variant features a carbon steel piston rod and a PT tapered port thread. Because it includes the -S magnet option, the extruded aluminum barrel integrates seamlessly with AirTAC CMSE reed and DMSE electronic solid-state sensors housed in the dual-side sensor grooves. The rear adjuster acts purely as a travel stop to set the retraction endpoint, meaning it will not hold a load safely without continuous live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 130 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×130 | 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 SAIJ125 Adjustable Cylinder SAIJ125X130-10S Is Used
Product Changeovers
Quickly adjust the retraction endpoint within the 120-130 mm window to accommodate minor variations in product size without swapping the cylinder.
End-Position Tuning
Fine-tune the exact bottom-out position during machine commissioning to prevent over-travel and crush damage on high-force tooling.
Heavy Assembly Presses
Leverage the 6136 N pull force at 0.5 MPa for robust clamping and joining operations where a precise, variable mechanical stop is required.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-10S the Right Cylinder?
Select this 125 mm bore adjustable-stroke cylinder when an application requires heavy thrust combined with precise end-position tuning, such as dialing in a 120-130 mm travel window during product changeovers. If your machine needs slightly less force, stepping down to a 100 mm bore yields 3681 N of pull at 0.5 MPa; conversely, moving up to a 160 mm bore provides 9425 N. Choose the SAIJ adjustable format over a fixed SAI cylinder when you need on-the-fly mechanical end-stop variations rather than a static stroke length. For drop-in compatibility, ensure your replacement matches the 125 mm bore, 130 mm stroke, 10 mm adjustment, PT port, and the -S magnet requirement.
Because the SAIJ125X130-10-S has a stroke of 130 mm, side-load risks are minimal, though long unsupported strokes still require an external guide. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. If your process demands fail-safe load holding without live air pressure, consider the SAIL pneumatic lock or BSAI clamp-lock series instead of relying on the rear 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 SAIJ125 Adjustable Cylinder SAIJ125X130-10S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of pull force and 6136 N of push force. At its maximum rated pressure of 1.0 MPa, it can deliver up to 1251 kgf.
The rear external adjuster screw allows you to shorten the effective stroke by up to 10 mm, creating a usable travel window of 120 to 130 mm. This lets you set the exact retraction endpoint during setup without replacing the cylinder.
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