Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 130mm 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
- Stroke130 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100
The AirTAC SAIJ125X130-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel anywhere in a 30-130 mm window. Delivering 6136 N of push force at 0.5 MPa, it is built to handle heavy loads with a 32 mm carbon steel rod and M27x2 thread. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback.
Because the adjuster acts purely as a mechanical stop, it does not hold the load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series. This model uses PT tapered ports and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 130 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 SAIJ125X130-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×130 | 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 SAIJ125X130-100 Is Used
Variable End-Stop Tuning
Dial in the exact retraction point within the 30-130 mm window during machine setup without physically swapping out the entire actuator.
Product Size Changeover
Quickly adapt a heavy-duty packaging line to different product lengths by adjusting the rear stopper screw on the fly.
Heavy Load Positioning
Leverage 6136 N of thrust at 0.5 MPa to move substantial masses into a precise final position before secondary operations occur.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X130-100 the Right Cylinder?
Choose this 125 mm bore when a 100 mm bore falls short, offering 3927 N of push force at 0.5 MPa compared to this model's 6136 N. The massive 100 mm adjustment range is perfect for prototyping or product changeovers where the exact end position varies significantly, saving you from swapping cylinders or adding external stops. If you need to hold a load mechanically without air pressure, you must add an external rod lock or look at the SAIL lock series, as the SAIJ adjuster only sets the travel end.
When replacing an ISO 15552 cylinder, match the 125 mm bore, 130 mm nominal stroke, 100 mm adjustment, PT port thread, and mounting style. Since the nominal stroke is 130 mm, side-load is minimal, but always ensure the load is guided to prevent rod binding. This configuration ships without a magnet; add the -S suffix if you require CMSE reed or DMSE electronic sensors.
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 SAIJ125X130-100 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 the maximum 1.0 MPa pressure, it delivers up to 1251 kgf.
The rear adjuster screw lets you shorten the 130 mm nominal stroke by up to 100 mm, creating a usable travel window of 30 to 130 mm. It functions as a mechanical stop to set the end position and is not a locking device.
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