Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-10S
The AirTAC SAIJ125X90-10-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 6136N push force at 0.5 MPa and uses a PT tapered port thread with a standard carbon steel rod. The built-in magnet supports position sensing. By turning the external adjustment screw, you can fine-tune the retract end position, creating a usable travel window of 80-90mm for this 90mm nominal stroke unit.
This adjustable stopper lets you dial in exact end positions during commissioning or product changeovers without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. It supports a speed range of 30-500mm/s and utilizes variable air cushions at both ends to decelerate the heavy 125mm piston smoothly.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 90 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 SAIJ125X90-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×90 | 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 SAIJ125X90-10S Is Used
Press Tuning
Fine-tune the exact bottoming position of a large press during commissioning without swapping cylinders.
Product Changeover
Quickly adjust the retract end-stop by up to 10mm when switching machinery to handle a slightly shorter workpiece.
Heavy Assembly
Delivers 6136N of push force at 0.5 MPa for driving large components into heavy industrial fixtures.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-10S the Right Cylinder?
Choose this 125mm bore when an application requires substantial thrust, stepping up from the 80mm bore which provides 2513N push force at 0.5 MPa. An adjustable stroke is preferred over a fixed SAI cylinder when you need precise end-position tuning during machine setup or product size changes. The rear screw acts purely as a travel stop and does not hold the load without live air; for true load-holding without pressure, select an SAIL or BSAI cylinder. To match this ISO 15552 replacement, specify the 125mm bore, 90mm stroke, 10mm adjustment, PT port, and the -S magnet.
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 SAIJ125X90-10S FAQ
The rear external screw acts as a mechanical stop that lets you shorten the effective stroke by up to 10mm, providing a usable travel window of 80-90mm from the 90mm nominal stroke. This allows precise end-position tuning without changing the cylinder.
At 0.5 MPa operating pressure, it provides 6136N of push force and 5734N of pull force. At the maximum pressure of 1.0 MPa, the push force reaches 1251 kgf.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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