Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-75 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 SAIJ125AX110-75
The AirTAC SAIJ125X110-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 110 mm travel by up to 75 mm. This creates a highly flexible 35-110 mm usable window, perfect for dialing in exact end positions during commissioning without swapping hardware. It delivers robust thrust, pushing 6136 N and pulling 5734 N at 0.5 MPa.
This unit features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides. Because no magnet is specified, position sensing requires adding an -S variant to support CMSE reed or DMSE electronic switches.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-75 |
|---|---|
| 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 SAIJ125AX110-75
| 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 SAIJ125AX110-75 Is Used
Variable End-Stop Tuning
Leverage the 35-110 mm travel window to precisely set the retract distance for varying material lengths without installing external physical stops.
Machine Changeover
Quickly readjust the cylinder's end position during product family transitions on a packaging line, minimizing downtime between runs.
High-Force Positioning
Utilize the 6136 N push force at 0.5 MPa to move heavy pallets or fixtures, relying on the fine thread adjustment for final alignment.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-75 the Right Cylinder?
Choose this 125 mm bore when a 100 mm cylinder (offering 3927 N push at 0.5 MPa) lacks the necessary force, but a 160 mm bore is physically oversized. The 75 mm adjustment range is ideal for product-size changeovers on a line, acting as an external stop to fine-tune the retract position. Remember that the rear adjuster is a travel stop, not a lock; it cannot hold a load without live air, so for true load-holding you should look to the SAIL or BSAI series.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 125 mm bore, 110 mm stroke, 75 mm adjust code, G1/2 PT port, and SUS420J2 rod material. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
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 SAIJ125AX110-75 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
The rear adjuster screw acts as a stopper that can trim the nominal 110 mm stroke back by up to 75 mm, giving an effective usable travel range of 35 to 110 mm. It only sets the end position and does not lock the load without continuous air pressure.
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