Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 1000mm 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
- Stroke1000 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10S
The AirTAC SAIJ125X1000-10-S is a double-acting, single-rod ISO 15552 profile cylinder engineered for exact end-position tuning. It features a rear adjusting screw that allows you to trim the effective stroke within a 990-1000 mm usable travel window without swapping the cylinder or adding external stops. Delivering 6136 N of push force at 0.5 MPa, it is built for heavy-duty positioning tasks.
This variant includes an SUS420J2 stainless steel rod (code A) for superior corrosion resistance and is equipped with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the rear stopper acts purely as a travel limit, not a load lock.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 1000 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 SAIJ125AX1000-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×1000 | 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 SAIJ125AX1000-10S Is Used
Long-Stroke Machine Setup
Fine-tune the 990-1000 mm travel end-position during initial machine commissioning to dial in exact contact points without machining external spacers.
Product Size Changeover
Quickly adjust the 10 mm stroke window on packaging lines to accommodate varying product lengths, minimizing downtime between production runs.
Heavy Material Positioning
Leverage the 6136 N push force at 0.5 MPa to move heavy pallets or materials into place, using the rear stopper to set the precise resting depth.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10S the Right Cylinder?
Choose this 125 mm bore when a 100 mm bore lacks sufficient thrust, as the 100 mm provides 3927 N at 0.5 MPa compared to this model's 6136 N. The 10 mm adjustable window is ideal for fine-tuning a long 1000 mm stroke during machine commissioning or product changeover, providing flexibility that a fixed-stroke SAI cylinder cannot. Because the stroke is 1000 mm, an external guide is strongly recommended to prevent excessive side loading on the 32 mm rod.
For a direct ISO 15552 replacement match, ensure you specify the 125 mm bore, 1000 mm stroke, PT tapered port threads, and the -S magnet. If your application requires holding the load without live air pressure, note that this cylinder's adjuster is only a stop; you would need an external rod lock or a SAIL/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 SAIJ125AX1000-10S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
The rear adjuster screw allows you to shorten the nominal 1000 mm stroke by up to 10 mm, providing a usable travel window of 990-1000 mm. This stopper only sets the end position and does not lock the load without live air.
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