Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 195mm 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
- Stroke195 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10S
The AirTAC SAIJ125X195-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 185 to 195 mm, allowing you to dial back the nominal 195 mm stroke by up to 10 mm during commissioning. This fine-tuning capability eliminates the need to swap cylinders or bolt on external stops when aligning end positions.
Belonging to the 125 mm bore class, it delivers 6136 N of push force and 5734 N of pull force at 0.5 MPa. The piston rod is constructed from SUS420J2 stainless steel (code A) for improved corrosion resistance, and the integrated magnet (-S) supports electronic DMSE and reed CMSE position sensing.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 195 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 SAIJ125AX195-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×195 | 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 SAIJ125AX195-10S Is Used
Machine Changeover
Dial in the 185-195 mm travel window on the fly to accommodate slight variations when switching a packaging line to a new product size.
End-Stop Tuning
Fine-tune the retract position during initial commissioning without machining external stopper blocks or changing the cylinder.
Heavy Forming Press
Leverage the 6136 N push force at 0.5 MPa for high-thrust clamping operations while relying on the adjuster to set the exact travel limit.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10S the Right Cylinder?
Choose this 125 mm bore when an 80 mm bore (providing 2513 N push at 0.5 MPa) lacks sufficient thrust, but a 160 mm bore (10053 N push) would be excessive. The 10 mm adjustable window is ideal for machines requiring precise end-stop tuning during setup or product changeover, rather than fitting a fixed-stroke SAI cylinder. For applications needing to hold a load without live air pressure, note that the rear adjuster acts only as a travel stop and not a brake; select a SAIL or BSAI cylinder instead.
As a dimensionally interchangeable ISO 15552 cylinder, ensure your replacement matches the 125 mm bore, 195 mm stroke, 10 mm adjustment, PT tapered port, and the -S magnet requirement. Because the stroke is under 300 mm, side-load risks are moderate, but the substantial M27x2 rod thread handles higher stress; always use an external guide for heavy loads.
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 SAIJ125AX195-10S FAQ
At a 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. At the maximum 1.0 MPa pressure, it achieves 1251 kgf of maximum thrust.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from the nominal 195 mm down to 185 mm. It is a travel stop for end-position tuning, not a lock, and does not hold the load without live air pressure.
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