Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-100S
The AirTAC SAIJ125 Adjustable Cylinder SAIJ125X230-100S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ125 mm
- Stroke230 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-100S
The AirTAC SAIJ125X230-100-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The rear adjustment screw allows you to trim the nominal 230mm stroke back by up to 100mm, creating a highly versatile 130-230mm usable travel window for precise end-position tuning.
Because the adjuster acts purely as a mechanical stop on the retract end, it decelerates the load alongside the standard variable air cushions but does not hold the position without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. It supports a sub-set of ISO 15552 mounting interfaces including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-100S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-100S |
|---|---|
| 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 | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | — |
| Max (@1.0 MPa) | 1169 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-100S
| 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 SAIJ125X230-100S Is Used
Variable End-Stop Positioning
Dial in precise retract positions between 130 and 230mm during machine commissioning to accommodate multiple product sizes without changing out the actuator hardware.
Automated Assembly Line Changeover
Quickly reconfigure the stroke length by up to 100mm during product family changeovers, using the rear adjuster to instantly match new package or component dimensions.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-100S the Right Cylinder?
The 100mm adjustment range is ideal for product changeovers on a production line, allowing operators to dial in the exact end-stop from 130 to 230mm without swapping out the cylinder or adding external mechanical stops. If your process demands less force, stepping down to an 80mm bore yields 2513N at 0.5 MPa, whereas moving up to a 160mm bore provides 10053N.
For load-holding requirements without continuous air pressure, note that this SAIJ rear adjuster functions only as a travel stop, not a lock; you should consider an AirTAC SAIL or BSAI series instead. This configuration uses PT tapered port threads (G1/2), standard carbon steel rod material, and includes the -S magnet option. Ensure your system provides clean, 40um filtered air and operates within the 30-500mm/s speed range specific to this 125mm bore size.
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 SAIJ125X230-100S FAQ
The rear external adjusting screw acts as a mechanical stopper that allows you to shorten the effective stroke by up to 100mm. This provides a usable travel window of 130 to 230mm, enabling fine-tuning of the end position at commissioning without needing to replace the cylinder.
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