Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-100 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 SAIJ125AX110-100
The AirTAC SAIJ125X110-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that creates a 10 to 110 mm usable travel window. Delivering 8590 N of push force at 0.7 MPa, this 125 mm bore unit is engineered for heavy-duty positioning. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily mount DMSE solid-state or CMSE reed switches for position feedback.
This variant is equipped with a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features PT tapered port threads. The rear adjuster acts purely as a mechanical stop to decelerate the travel end; it is not a locking device and will not hold a load without continuous live air pressure. For applications requiring true load-holding without air, consider the SAIL or BSAI series.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-100 |
|---|---|
| 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 SAIJ125AX110-100
| 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 SAIJ125AX110-100 Is Used
Machine Setup Changeover
Fine-tune the retract end-position during machine setup or product size changeovers, utilizing the 10 to 110 mm travel window to adapt the stroke on the fly.
Heavy-Duty End Stopping
Leverage the 8590 N push force at 0.7 MPa to move substantial masses, relying on the rear stop to set the exact travel limit without needing external mechanical stops.
Variable Positioning
Adjust the effective stroke dynamically during commissioning to perfectly time the motion sequence of your assembly line equipment.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-100 the Right Cylinder?
Choose this 125 mm adjustable unit when you need to dial in a precise end-position during commissioning or product changeover without swapping cylinders or adding external stops. If your application requires less force, stepping down to an 80 mm bore yields 3518 N of push force at 0.7 MPa. Because the nominal stroke is 110 mm, you avoid the side-load complications of long unsupported travel, though external guides are always recommended for heavy off-center loads.
To match this ISO 15552 interchangeable cylinder, specify a 125 mm bore, a 110 mm stroke, a 100 mm adjustment range, PT tapered ports, and the SUS420J2 rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, intentionally omitting FB, CA, CB, and CR brackets to streamline the adjustable rear assembly.
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 SAIJ125AX110-100 FAQ
At 0.7 MPa operating pressure, this 125 mm bore cylinder provides 8590 N of push force and 5734 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 1251 kgf of push force.
The rear adjusting screw acts as a mechanical stop that lets you shorten the 110 mm nominal stroke by up to 100 mm, creating a usable travel window of 10 to 110 mm. This allows precise end-position tuning at commissioning without replacing the cylinder.
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