Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-75S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-75S 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 SAIJ125X110-75S
The AirTAC SAIJ125X110-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5 MPa. Because of the 75mm adjustment code, the effective travel window spans 35 to 110mm. This wide tuning band allows operators to dial in the exact retract end-position during commissioning without swapping hardware.
It features a carbon steel piston rod and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant contains a magnet for precise position detection via AirTAC CMSE reed or DMSE electronic solid-state switches. The rear screw acts purely as a travel stop for deceleration, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-75S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-75S |
|---|---|
| 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 SAIJ125X110-75S
| 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 SAIJ125X110-75S Is Used
Variable End-Stop Positioning
Dial in retract distances between 35 and 110mm on packaging lines to accommodate carton size changes without adding external mechanical stops.
Commissioning Fine-Tuning
Use the 75mm adjustment screw to precisely set the end-of-stroke position during machine setup, absorbing mechanical tolerance variations safely.
Heavy-Duty Forming Stops
Leverage the 6136N push force at 0.5 MPa for heavy pressing or forming tasks, using the rear stopper to define the exact travel limit.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X110-75S the Right Cylinder?
Choose this 125mm bore when an application requires substantial thrust, such as 6136N push or 5734N pull at 0.5 MPa. If your setup only needs lighter force, stepping down to an 80mm bore yields 2513N push force, whereas moving up to a 160mm bore provides 10053N. The adjustable stroke is selected over a fixed SAI cylinder when a machine requires variable end-stops for rapid product-size changeovers. For load-holding without live air, pair this cylinder with an external pilot-operated check valve or select an AirTAC SAIL pneumatic lock version, as the adjuster is not a brake. To match this ISO 15552 footprint exactly, confirm the 110mm stroke, 75mm adjustment, PT port, and -S magnet.
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 SAIJ125X110-75S FAQ
The rear adjuster screw allows you to trim the effective travel back by up to 75mm from the 110mm nominal stroke. This creates a usable travel window of 35 to 110mm, letting you set the exact retract end-position without changing the cylinder.
At 0.5 MPa operating pressure, it provides 6136N of push force and 5734N of pull force. At 0.7 MPa, the push force increases to 8590N.
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