Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 230mm 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
- Stroke230 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10S
The AirTAC SAIJ125X230-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 220-230 mm. Built with a carbon steel rod and a PT tapered G1/2 port, it delivers a robust 6136 N push force at 0.5 MPa. The included -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE solid-state sensors.
This adjustable-stroke design allows you to fine-tune the retract end position during commissioning without adding external stops. The rear adjuster acts purely as a mechanical stop and works alongside the 40 mm air cushions to decelerate the load. It is not a locking mechanism, so load-holding without live air requires a SAIL or BSAI cylinder.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 230 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 SAIJ125X230-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×230 | 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 SAIJ125X230-10S Is Used
Variable End-Stop Tuning
Dial in the exact 220-230 mm retract position during machine commissioning to accommodate different product sizes without changing the cylinder.
Changeover Optimization
Quickly adjust the stroke end-point on packaging lines when switching between product formats, reducing downtime and eliminating external stop hardware.
Heavy-Duty Positioning
Leverage the 6136 N thrust to move heavy pallets or fixtures into a tuned retracted position before the next stage of the automated process.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10S the Right Cylinder?
Choose this 125 mm bore when 80 mm (2513 N at 0.5 MPa) is too weak and 160 mm (10053 N) exceeds your space requirements. The 10 mm adjustment range is ideal for setting exact retract positions during machine setup or product changeovers, replacing the need to swap out a fixed-stroke SAI cylinder.
For a true ISO 15552 replacement, match the 125 mm bore, 230 mm stroke, 10 mm adjust code, PT G1/2 port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 230 mm stroke is under the 300 mm side-load threshold, standard mounting is sufficient, though long unsupported loads should still use an external guide.
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 SAIJ125X230-10S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. It can reach up to 1251 kgf at its maximum 1.0 MPa pressure rating.
The rear adjuster screw lets you shorten the nominal 230 mm stroke by up to 10 mm, creating a 220-230 mm travel window. It acts as a mechanical stop to fine-tune the end position and does not lock the load without live air pressure.
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