Airtac SAIJ125 Adjustable Cylinder SAIJ125X180-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X180-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X180-10S
The AirTAC SAIJ125X180-10-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 6136N of push force at 0.5 MPa and provides a usable travel window of 170-180mm, letting you trim the nominal 180mm stroke by up to 10mm during commissioning without swapping the unit.
This -S variant includes a magnet for position sensing and is built with a standard carbon steel rod and PT tapered ports. The extruded aluminum barrel integrates sensor grooves on both sides, accepting AirTAC CMSE reed or DMSE solid-state switches. It supports a speed range of 30-500mm/s and uses variable air cushions at both ends to decelerate the load.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X180-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X180-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 180 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 SAIJ125X180-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×180 | 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 SAIJ125X180-10S Is Used
Changeover End-Stop Tuning
Dial in the 170-180mm travel window precisely during product size changeovers on packaging lines without replacing the cylinder.
Heavy Press Positioning
Leverage 6136N of thrust at 0.5MPa to drive heavy pressing or stamping operations while trimming the retract position by up to 10mm.
Sensor-Verified Assembly
Use the integrated magnet with DMSE solid-state switches to confirm end-of-stroke arrival on assembly fixtures before actuating clamps.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X180-10S the Right Cylinder?
Choose this 125mm bore when a smaller 100mm bore (providing 3927N push at 0.5MPa) lacks the necessary thrust for your heavier tooling. The 10mm rear adjustment screw is ideal for fine-tuning the retract end position during product changeovers, avoiding the need to bolt on external stops. For load-holding without live air pressure, note that this adjuster acts only as a travel stop, so you should look to the SAIL or BSAI series instead.
To match this ISO 15552 replacement exactly, verify your 125mm bore, 180mm stroke, 10mm adjustment range, PT G1/2 port thread, and -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR footprints.
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 SAIJ125X180-10S FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 1251 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 180mm down to a minimum of 170mm. It sets the travel end and relies on the air cushion for deceleration, but it does not lock or hold the load without live air pressure.
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