Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 60mm 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
- Stroke60 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30S
The AirTAC SAIJ125X60-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to dial back the 60mm nominal stroke by up to 30mm for a highly versatile 30-60mm usable travel window. Delivering a robust 6136N push force at 0.5MPa, it handles heavy positioning tasks while allowing on-the-fly end-position tuning during commissioning without swapping out the physical cylinder.
This model features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set spans Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 60 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 SAIJ125AX60-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×60 | 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 SAIJ125AX60-30S Is Used
Machine Changeover
Rapidly adapt end-stops for different product sizes on a single line by dialing back the stroke up to 30mm instead of physically swapping cylinders.
Commissioning Tuning
Fine-tune the final resting position during initial setup to achieve perfect alignment without adding external stopper blocks to your fixture.
Heavy Positioning
Leverage the 6136N push force at 0.5MPa to move heavy pallets or lifts, using the adjustable travel window to set precise indexing distances.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30S the Right Cylinder?
Choose this 125mm bore when a smaller 100mm cylinder lacks the necessary thrust (offering 3927N at 0.5MPa) or when an 80mm bore is entirely underpowered. The adjustable stroke is specifically beneficial for machine changeovers where exact end-stops vary by product size, letting you fine-tune the travel window rather than maintaining an inventory of fixed-stroke SAI cylinders. Because the stroke is short, side-load risks are minimal, but the 32mm rod and M27x2 thread provide excellent rigidity for offset loads.
When integrating this cylinder, remember the rear adjuster acts purely as a mechanical stop and does not hold the load without live air pressure. For applications requiring true load-holding in the event of air loss, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. The PT tapered port threads and the -S magnet option are essential for matching your existing pneumatic and sensing infrastructure.
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 SAIJ125AX60-30S FAQ
At 0.5MPa operating pressure, this 125mm bore cylinder provides a push force of 6136N and a pull force of 5734N. If you increase the pressure to 0.7MPa, the push force rises to 8590N.
The rear adjusting screw acts as a mechanical stop that lets you shorten the 60mm nominal stroke by up to 30mm, creating a usable travel window of 30-60mm. The adjuster only sets the end position and does not lock the load without live air pressure.
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