Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-100 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 SAIJ125X160-100
The AirTAC SAIJ125X160-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 160 mm stroke that can be dialed back by up to 100 mm, creating a highly flexible 60-160 mm usable travel window for product changeovers. Delivering 6136 N of pull force at 0.5 MPa, it handles heavy positioning tasks with ease.
This profile cylinder uses a PT tapered port and a robust 32 mm carbon steel rod with an M27x2 thread, providing excellent resistance to side loads. It features variable air cushions at both ends to manage kinetic energy, and its extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position switches.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-100 |
|---|---|
| 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 SAIJ125X160-100
| 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 SAIJ125X160-100 Is Used
Heavy Assembly Positioning
Dial in the exact 60-160 mm retract distance during heavy machinery assembly to ensure components mate perfectly without crushing forces.
Product Line Changeover
Quickly adapt a manufacturing line to new product dimensions by adjusting the stroke end-position on the fly rather than replacing the entire cylinder.
Variable End-Stop Actuation
Handle multiple part sizes on a single conveyor by trimming the effective stroke back up to 100 mm, providing flexible end-stop locations for different workflows.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-100 the Right Cylinder?
Choose this 125 mm bore cylinder when your application requires substantial thrust—such as 6136 N pull at 0.5 MPa—and variable end-stop positioning. If you need less force, stepping down to an 80 mm bore yields 2268 N pull at 0.5 MPa, whereas moving up to a 160 mm bore provides 9425 N pull. The integrated rear adjuster allows fine-tuning of the retract position during commissioning without adding external stops or swapping out a fixed-stroke SAI cylinder.
Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure. For fail-safe load holding, consider the SAIL pneumatic lock or BSAI clamp-lock series. This model supports a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, and operates at speeds of 30-500 mm/s.
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 SAIJ125X160-100 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of pull force and 8590 N of push force. At the maximum pressure of 1.0 MPa, it delivers a maximum push force of 1251 kgf.
The rear adjuster screw allows you to shorten the effective stroke from its nominal 160 mm down to as little as 60 mm. This creates a 100 mm adjustable travel window, enabling precise end-position tuning at commissioning without needing to replace the cylinder or bolt on external mechanical stops.
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