Airtac SAIJ125 Adjustable Cylinder SAIJ125X100-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X100-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 100mm 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
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X100-10S
The AirTAC SAIJ125X100-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 6136N of push force at 0.5 MPa and features a 90-100mm usable travel window, allowing you to trim the effective stroke by up to 10mm during commissioning. This built-in stopper eliminates the need to swap cylinders or add external shims when finalizing end positions.
This bore size utilizes a 32mm carbon steel rod with an M27x2 thread, providing a robust interface for high side-load conditions. The extruded aluminum barrel includes dual sensor grooves, and the integrated magnet (-S) supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X100-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X100-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 100 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 SAIJ125X100-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SAIJ125X100-10S Is Used
Product Changeovers
Dial in the 90-100mm travel window during format changes on a packaging line, fine-tuning the retract distance for different carton sizes without swapping hardware.
Heavy Fixture Positioning
Leverage the 6136N push force to move heavy machining fixtures, using the 10mm rear stopper to set the exact clamping clearance at commissioning.
Assembly Line Setup
Establish precise end-stops for large press operations, using the integrated magnet and DMSE sensors to confirm the adjusted position in automated control logic.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X100-10S the Right Cylinder?
Choose this 125mm bore when an 80mm bore (2513N push at 0.5 MPa) lacks the thrust for your heavier fixtures, but a 160mm bore (10053N) would be excessive. The adjustable 90-100mm travel window is ideal for product changeovers on a line, letting you dial in the exact retract distance without changing the mounting footprint. It uses a PT tapered port thread and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
Because the stroke is 100mm, the 32mm rod handles side loads well without needing an external guide. Remember that the rear adjuster acts only as a travel stop, not a lock; the cylinder cannot hold a load without live air. For fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder, or an external pilot-operated check valve. To replace an ISO 15552 cylinder, match the 125mm bore, 100mm stroke, 10mm adjustment, PT port, and -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 SAIJ125X100-10S FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At 0.7 MPa, the push force increases to 8590N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 100mm nominal stroke by up to 10mm, creating a 90-100mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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