Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30 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 SAIJ125AX60-30
The AirTAC SAIJ125X60-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5MPa. It features a SUS420J2 stainless steel rod and PT tapered ports. By turning the rear screw, you achieve a usable travel window of 30-60mm, allowing precise end-position tuning without adding external stops.
This adjustable-stroke design is ideal for product changeovers, letting you trim the stroke by up to 30mm directly at commissioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30 |
|---|---|
| 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 SAIJ125AX60-30
| 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 SAIJ125AX60-30 Is Used
Variable End-Stop Clamping
Dial in the exact clamping depth on machined parts by adjusting the rear stopper between 30 and 60mm of travel.
Machine Changeover
Quickly adapt end-of-stroke positions for different product sizes on the same line without physically swapping the cylinder.
Heavy Forming Setup
Leverage 6136N of thrust at 0.5MPa for pressing operations while fine-tuning the bottoming position during initial commissioning.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX60-30 the Right Cylinder?
Choose this 125mm bore when an 80mm cylinder (providing 2513N push at 0.5MPa) lacks thrust, but a 160mm bore (10053N) is excessive. The 30mm adjustment range is perfect for dialing in exact end-stops during machine setup, avoiding the need to swap a fixed-stroke SAI cylinder. If your application requires load holding without continuous air pressure, consider the SAIL or BSAI locking cylinders instead.
For a seamless ISO 15552 replacement, verify the 125mm bore, 60mm nominal stroke, 30mm adjustment, PT port thread, and your required mounting style. Supported mounts include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since this cylinder lacks a magnet (-S), it will not work with CMSE or DMSE sensors without a rod 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 SAIJ125AX60-30 FAQ
At 0.5MPa, it provides 6136N of push force and 5734N of pull force. At 0.7MPa, the push force increases to 8590N.
The rear adjuster screw lets you mechanically shorten the 60mm nominal stroke, creating a usable travel window of 30 to 60mm. It functions as a hard stop for end-position tuning and does not lock the load without air pressure.
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