Airtac SAIJ125 Adjustable Cylinder SAIJ125AX75-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX75-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX75-10
The AirTAC SAIJ125X75-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end position during commissioning. It provides a usable travel window of 65-75 mm, letting you shorten the effective stroke by up to 10 mm without swapping hardware. It delivers a robust 6136 N pull force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks.
This model features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads. It includes variable air cushions at both ends to decelerate the load, and the extruded aluminum barrel offers sensor grooves on both sides for adding CMSE or DMSE switches as needed.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX75-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX75-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 75 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 SAIJ125AX75-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×75 | 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 SAIJ125AX75-10 Is Used
Machine Changeover
Dial in the 65-75 mm stroke window during product size changes to set new end positions quickly without machining new stopper blocks.
Heavy Press Positioning
Leverage the 6136 N pull force to seat heavy components accurately, using the rear screw to trim the final 10 mm of travel.
Commissioning Calibration
Fine-tune the retract end position during setup to absorb mechanical tolerances, ensuring precise alignment before full production runs.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX75-10 the Right Cylinder?
Choose this 125 mm bore when you need higher force than the 80 mm version (which provides 2268 N pull at 0.5 MPa) but want to avoid the larger footprint of a 160 mm cylinder. The adjustable stroke is ideal for product changeovers on a line, letting you set a precise variable end-stop without adding external stops. For replacement, match the 125 mm bore, 75 mm stroke, 10 mm adjustment, PT G1/2 port, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set.
Remember that the rear adjuster acts only as a travel stop to set the end position, not as a lock. A plain SAIJ cylinder cannot hold a load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series instead.
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 SAIJ125AX75-10 FAQ
At a 0.5 MPa operating pressure, this 125 mm bore cylinder delivers 6136 N of pull force and 8590 N of push force at 0.7 MPa.
The rear adjuster screw lets you shorten the 75 mm nominal stroke by up to 10 mm, providing a usable travel window of 65-75 mm to fine-tune the retract end position without changing the cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125AX75-10
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.