Airtac SAIJ125 Adjustable Cylinder SAIJ125AX115-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX115-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 115mm 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
- Stroke115 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX115-10
The AirTAC SAIJ125X115-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 105 to 115 mm, allowing you to dial back the nominal 115 mm stroke by up to 10 mm during machine commissioning. This bore size delivers a robust 6136 N push force at 0.5 MPa, making it suitable for heavy-duty handling.
This specific configuration incorporates an SUS420J2 stainless steel rod (material code A) for enhanced resistance to corrosion and surface wear. The integrated sensor grooves on both sides of the extruded aluminum barrel allow for direct mounting of CMSE and DMSE switches. It features PT tapered port threads and adjustable air cushions at both ends to manage impact loads.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX115-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX115-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 115 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 SAIJ125AX115-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×115 | 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 SAIJ125AX115-10 Is Used
Heavy Pressing Operations
Provides a consistent 6136 N pressing force at 0.5 MPa, with the 10 mm stroke adjuster allowing exact tuning of the bottoming position for different material thicknesses.
Machine Changeovers
Quickly reconfigure the retract end-stop by up to 10 mm during product size transitions on a packaging line, eliminating the need to physically swap out the cylinder.
Robust Material Handling
The SUS420J2 stainless steel rod and 125 mm bore size deliver the durability and high thrust needed for moving heavy pallets or industrial components.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX115-10 the Right Cylinder?
Selecting this 125 mm bore is appropriate when your application requires substantial thrust, such as the 6136 N push force generated at 0.5 MPa. If your setup demands less force, stepping down to a 100 mm bore yields 3927 N at the same pressure, whereas moving up to a 160 mm bore provides 10053 N. The 10 mm rear adjuster is ideal for fine-tuning the retract end position without adding external mechanical stops.
Because the nominal stroke is 115 mm, an external guide is not strictly required for side-load management, though the 32 mm rod diameter handles standard loads well. Remember that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series. To match this ISO 15552 interchangeable cylinder, confirm your requirements: 125 mm bore, 115 mm stroke, 10 mm adjustment, PT G1/2 port, and no magnet.
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 SAIJ125AX115-10 FAQ
The cylinder has a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke from 115 mm down to a minimum of 105 mm. This provides a 10 mm tuning window for precise end-position calibration without changing the cylinder itself.
At a standard operating pressure of 0.5 MPa, this 125 mm bore cylinder generates a push force of 6136 N and a pull force of 5734 N. It can achieve a maximum push force of 11045 N at 0.9 MPa.
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