Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 110mm 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
- Stroke110 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-10S
The AirTAC SAIJ125X110-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5MPa. It features a SUS420J2 stainless steel rod and a built-in magnet for position sensing. The rear stopper screw allows you to fine-tune the effective travel, creating a usable adjustment window of 100-110mm for precise end-position calibration.
This adjustable-stroke design eliminates the need to swap cylinders or add external stops during machine commissioning. It includes PT tapered ports and operates at speeds of 30-500mm/s. The rear adjuster functions strictly as a travel stop to set deceleration, not as a lock, meaning it cannot hold a load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 110 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 SAIJ125AX110-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×110 | 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 SAIJ125AX110-10S Is Used
End-Position Trimming
Dial in the exact 100-110mm travel window during machine commissioning to perfect part seating without physically remounting the actuator.
Product Changeover
Quickly adjust the rear stop screw to accommodate slightly different product lengths on the same line, minimizing downtime between runs.
High-Force Forming
Leverage the 6136N thrust at 0.5MPa for pressing or clamping tasks where the final end-stop must be micro-adjusted to prevent over-travel.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-10S the Right Cylinder?
Choose this 125mm bore when an 80mm bore (providing 2513N push at 0.5MPa) lacks the thrust for your application. The SAIJ125X110-10-S is selected over a fixed-stroke SAI cylinder when a variable end-stop is required for product-size changeovers. For a direct ISO 15552 replacement match, ensure your specifications align with the 125mm bore, 110mm nominal stroke, 10mm adjustment, PT ports, and the -S magnet option.
Although the 110mm stroke is below the 300mm side-load threshold, the robust 32mm rod and M27x2 thread handle substantial loads. If your setup requires true load-holding without continuous air pressure, integrate an external pilot-operated check valve or select 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 SAIJ125 Adjustable Cylinder SAIJ125AX110-10S FAQ
At 0.5MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At 0.7MPa, the push force increases to 8590N.
The rear adjuster acts as a mechanical stop that trims the nominal 110mm stroke inward, giving you a usable travel window of 100-110mm. It sets the end position but does not lock the load without live air.
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