Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-10S 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 SAIJ125X160-10S
The AirTAC SAIJ125X160-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 6136N of push force at 0.5 MPa and features a 10mm adjustment range, creating a precise 150-160mm usable travel window for fine-tuning the retract end position during commissioning. The carbon steel rod and M27x2 thread provide a robust interface for heavy loads, while the PT tapered port ensures a secure pneumatic connection.
This model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, which seat neatly into the sensor grooves on both sides of the extruded aluminum barrel. The rear adjuster acts purely as a travel stop to dial in the end position without adding external stops, but it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-10S |
|---|---|
| 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 SAIJ125X160-10S
| 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 SAIJ125X160-10S Is Used
Machine Changeover
Dial in the 150-160mm travel window during product size changes without physically swapping cylinders or re-engineering external hard stops.
Heavy Clamping
Leverage the 6136N push force to secure heavy workpieces, using the rear adjuster to set the exact clamping depth precisely.
Assembly Presses
Fine-tune the pressing end position on automated lines, relying on the robust 32mm carbon steel rod to handle significant operational stresses.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-10S the Right Cylinder?
Choose this 125mm bore when an 80mm bore (2513N push at 0.5 MPa) lacks the thrust for your application, but a 160mm bore (10053N) would be excessive. The 10mm adjustable window is perfect for applications requiring minor end-position tweaks during machine setup or product changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. When replacing an ISO 15552 cylinder, match the 125mm bore, 160mm stroke, PT port thread, and desired mounting from the available Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
Because the 160mm stroke is relatively short for this large bore, side-loading risks are lower, but you should still ensure the load is properly guided to protect the rod seals. Remember that the rear stopper and air cushions only manage deceleration; they do not function as a lock. If the machine loses air, the cylinder will not hold its position.
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 SAIJ125X160-10S FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At 0.7 MPa, the push force increases to 8590N.
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 160mm stroke by up to 10mm, providing a usable travel window of 150-160mm. It is used for fine-tuning end positions at commissioning and is not a locking device.
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