Airtac SAIJ125 Adjustable Cylinder SAIJ125AX700-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX700-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 700mm 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
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX700-10
The AirTAC SAIJ125X700-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5 MPa. It features a 700mm nominal stroke that can be fine-tuned down by up to 10mm, creating a precise 690-700mm usable travel window. This adjustability allows operators to dial in exact retract end positions during commissioning without adding external stops.
Built for demanding environments, this unit utilizes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the G1/2 PT ports facilitate robust airflow for this large-bore actuator.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX700-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX700-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 700 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 SAIJ125AX700-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×700 | 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 SAIJ125AX700-10 Is Used
Heavy-Duty Press Fit
Dials in the exact 690-700mm retract stop for seating large bearings, absorbing mechanical tolerances during initial machine commissioning.
Pallet Changeover
Adjusts the end position by up to 10mm to accommodate different pallet lengths on an automated line without physically swapping the cylinder.
Large Mold Handling
Leverages 6136N of thrust at 0.5 MPa to shift heavy tooling, using the rear stopper to precisely set the retraction clearance.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX700-10 the Right Cylinder?
Select this 125mm bore actuator when an application requires heavy thrust—6136N push and 5734N pull at 0.5 MPa—that a 100mm bore (3927N push) cannot provide, but without stepping up to the massive 160mm size. The 10mm adjustable window is ideal for fine-tuning the retract position on product changeovers. Because the stroke is 700mm, an external guide is strongly recommended to prevent excessive side-loading on the rod. The rear adjuster acts strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. It mounts via Basic, FA, LB, TC, FTC, TCM1, or TCM2 interfaces.
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 SAIJ125AX700-10 FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. It can deliver up to 11045N of push force at 0.9 MPa.
The rear adjuster screw allows you to shorten the 700mm nominal stroke by up to 10mm, providing a 690-700mm travel window. It functions as a mechanical stop for end-position tuning and is not a locking device.
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