Airtac SAIJ125 Adjustable Cylinder SAIJ125AX260-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX260-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 260mm 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
- Stroke260 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX260-10
The AirTAC SAIJ125X260-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 250-260 mm usable travel window, allowing you to trim the 260 mm nominal stroke by up to 10 mm during commissioning. Delivering 6136 N of push force at 0.5 MPa, it handles heavy-duty positioning with precision.
This model features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU is configured without a magnet. The rear stopper screw sets the retract end position but does not lock the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX260-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX260-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 260 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 SAIJ125AX260-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×260 | 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 SAIJ125AX260-10 Is Used
Precision End-Stop Tuning
Dial in the exact 250-260 mm retract position during machine commissioning without swapping cylinders or adding external mechanical stops.
Product Changeover
Quickly adjust the 10 mm stroke window to accommodate slight variations in product dimensions on a high-thrust assembly line.
Heavy Fixture Positioning
Leverage 6136 N of thrust at 0.5 MPa to move heavy fixtures, using the rear stopper to set the precise retraction depth.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX260-10 the Right Cylinder?
Choose this 125 mm bore when a 100 mm cylinder (providing 3927 N push at 0.5 MPa) lacks the necessary thrust, but a 160 mm bore is physically oversized. The 10 mm adjustment range is ideal for applications requiring micro-fine end-position tuning rather than large travel changes. For strokes of 260 mm, the 32 mm rod diameter handles moderate side loads, but an external guide is recommended for heavy off-center loads.
To replace an ISO 15552 cylinder, match the 125 mm bore, 260 mm stroke, 10 mm adjustment, PT G1/2 port, and the specific mounting style. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR. Since this SKU lacks a magnet, it cannot use CMSE or DMSE sensors; if position feedback is needed, select a -S variant or add external sensors.
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 SAIJ125AX260-10 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 mechanical stop, allowing you to shorten the 260 mm nominal stroke by up to 10 mm, creating a 250-260 mm travel window. It only sets the end position and does not lock the load without continuous air pressure.
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