Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-30S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-30S 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 SAIJ125X110-30S
The AirTAC SAIJ125X110-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 6136N push force at 0.5 MPa, making it ideal for heavy-duty positioning tasks. By utilizing the integrated rear stopper, you can fine-tune the effective travel anywhere within an 80-110 mm usable window without physically swapping the actuator.
This specific configuration features a standard carbon steel rod and a PT tapered port. The -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE electronic solid-state switches mounted into the dual-sided sensor grooves. The rear adjuster acts purely as a travel stop for deceleration and positioning, meaning it will not hold a load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-30S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-30S |
|---|---|
| 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 SAIJ125X110-30S
| 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 SAIJ125X110-30S Is Used
Machine Changeover
Dial in the 80-110 mm travel window during product size transitions to set new end positions without replacing the cylinder or adding external stops.
Heavy Positioning
Leverage the 6136N push force to move heavy pallets or fixtures, using the rear stopper to fine-tune the final resting position accurately.
Assembly Pressing
Apply controlled clamping or pressing force, relying on the adjustable stop to compensate for tooling variations on the assembly line.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-30S the Right Cylinder?
When selecting this model, the 125 mm bore provides 6136N of push force at 0.5 MPa. If your application requires less force, stepping down to an 80 mm bore yields 2513N, whereas moving up to a 160 mm bore provides 10053N. The adjustable stroke is highly beneficial during machine commissioning or product changeover, allowing you to dial in the exact end-position within the 80-110 mm travel window instead of machining external stops or relying on a fixed-stroke SAI cylinder.
For ISO 15552 replacement matching, ensure you specify the 125 mm bore, 110 mm nominal stroke, 30 mm adjustment range, PT port thread, and the -S magnet option. The SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Because the nominal stroke is 110 mm, side-load concerns are minimal, but an external guide is always recommended for heavy radial loads.
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 SAIJ125X110-30S FAQ
At an operating pressure of 0.5 MPa, this 125 mm bore cylinder generates 6136N of push force and 5734N of pull force. It can reach a maximum push force of 11045N at 0.9 MPa.
The rear adjuster acts as an external stopper that lets you shorten the 110 mm nominal stroke by up to 30 mm, providing a usable travel window of 80 to 110 mm. It functions as a travel stop and does not lock or hold the load without continuous air pressure.
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