Airtac SAIJ125 Adjustable Cylinder SAIJ125AX170-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX170-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 170mm 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
- Stroke170 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX170-10S
The AirTAC SAIJ125X170-10-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 160 to 170 mm, allowing you to dial in the exact retract position without adding external stops. This 125 mm bore generates 6136 N of push force at 0.5 MPa and incorporates a SUS420J2 stainless steel rod for superior corrosion resistance.
Equipped with a magnet for CMSE and DMSE sensors, this unit supports precise end-of-stroke signaling. The PT tapered port ensures a reliable pneumatic seal, while the extruded aluminum barrel maintains standard ISO 15552 mounting dimensions. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX170-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX170-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 170 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 SAIJ125AX170-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×170 | 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 SAIJ125AX170-10S Is Used
Press Tooling Setup
Fine-tune the 160-170 mm travel window during press tooling setup to accommodate varying material thicknesses without swapping the actuator.
Product Diverting
Adjust the retract end-stop on the fly for conveyor diverters handling different package sizes, ensuring precise positioning during line changeover.
Heavy Component Staging
Leverage the 6136 N push force to stage heavy metal components at a machining cell, using the rear screw to trim the exact presentation height.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX170-10S the Right Cylinder?
Choose this 125 mm bore when an 80 mm cylinder's 2513 N push force at 0.5 MPa is insufficient for heavy positioning tasks. The adjustable 10 mm trim window is ideal for product changeovers where a fixed-stroke SAI cylinder would require shimming or mechanical rework. For load-holding without continuous air pressure, select a SAIL locking cylinder or an external rod lock instead of relying on the SAIJ adjuster.
When replacing an ISO 15552 cylinder, match the 170 mm stroke, the 10 mm adjustment range, PT porting, and the -S magnet requirement. Because the total stroke is under 300 mm, side-load stress is manageable, but long unsupported rods still need an external guide. This SAIJ model supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options.
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 SAIJ125AX170-10S 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 lets you shorten the 170 mm nominal stroke by up to 10 mm, creating a 160-170 mm usable travel window. It functions as a mechanical stop to fine-tune the end position and is not a locking mechanism.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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