Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 160mm 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
- Stroke160 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-75
The AirTAC SAIJ125X160-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust performance with a 125mm bore. It generates 6136N of push force and 5734N of pull force at 0.5 MPa. The integrated adjusting screw allows you to shorten the effective travel, creating a usable stroke window of 85 to 160mm to perfectly dial in end positions during commissioning.
This specific configuration features a SUS420J2 stainless steel rod (option A) for enhanced durability against moisture and minor side loads. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic sensors if a magnet is added later. Fluid must be filtered 40um air, operating between 0.15 and 1.0 MPa.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 160 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 SAIJ125AX160-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×160 | 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 SAIJ125AX160-75 Is Used
Variable End Stops
Fine-tune the 85-160mm travel window on heavy jigs without swapping out the entire cylinder or adding external stopper blocks.
Machine Changeover
Rapidly adjust the retract position during product size changes on a packaging line using the rear screw mechanism.
High-Force Positioning
Leverage the 6136N push force to move heavy pallets while precisely setting the end-of-stroke deceleration point.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-75 the Right Cylinder?
Choose this 125mm bore cylinder when an application requires high thrust (up to 6136N at 0.5 MPa) alongside flexible end-position tuning, stepping up from an 80mm bore that provides 2513N push force. The rear adjuster acts purely as a mechanical stop to trim the 160mm stroke by up to 75mm; it does not lock the load. If your process requires true load-holding without continuous air pressure, select the SAIL (pneumatic lock) or BSAI (clamp-lock) series instead.
When replacing an ISO 15552 cylinder, match the 125mm bore, 160mm stroke, 75mm adjustment range, PT tapered port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). For any stroke of 300mm or more, an external guide is recommended to prevent rod binding, though this 160mm stroke is well within standard limits.
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 SAIJ125AX160-75 FAQ
At 0.5 MPa, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. The operational speed range is 30-500 mm/s.
The rear adjuster screw allows you to mechanically shorten the 160mm nominal stroke by up to 75mm, creating an effective travel window of 85 to 160mm. This stopper only sets the end position; it does not hold the load without live air pressure.
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