Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10 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 SAIJ125AX195-10
The AirTAC SAIJ125X195-10 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stopper, allowing you to dial back the 195 mm nominal stroke by up to 10 mm. This creates a precise 185-195 mm usable travel window, enabling on-the-fly end-position tuning during commissioning without swapping out the hardware. It delivers 6136 N of push thrust at 0.5 MPa and handles speeds of 30-500 mm/s.
This SKU features a SUS420J2 stainless steel rod for enhanced durability against moisture and PT tapered port threads for a reliable seal. The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration omits the internal magnet. The rear adjuster acts strictly as a travel stop to set deceleration limits and does not hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10 |
|---|---|
| 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 SAIJ125AX195-10
| 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 SAIJ125AX195-10 Is Used
Machine Setup & Changeover
Dial in the exact 185-195 mm retract position during product changeovers using the 10 mm rear stopper, eliminating the need to remachine fixed external stops.
High-Force Positioning
Leverage 6136 N of thrust at 0.5 MPa to move heavy assemblies while fine-tuning the final end-position to account for mechanical tolerance stack-ups.
Variable End-Stop Assembly
Set precise retract limits on automated assembly lines where multiple product variants require slightly different cylinder retraction depths.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-10 the Right Cylinder?
Select this 125 mm bore actuator when an application demands high force combined with variable end-stops for product-size changeovers on a line. It supplies 6136 N push and 5734 N pull force at 0.5 MPa. If your machinery requires less thrust, stepping down to the 100 mm bore yields 3927 N push force, while upgrading to the 160 mm bore provides 10053 N for heavier payloads. Choose this adjustable variant over a fixed SAI model when you need to fine-tune the retract position at setup rather than machining external stops.
Because the 195 mm stroke approaches the mid-range for this bore size, always support the load with an external guide to prevent side-loading damage to the rod. The rear adjuster and integrated air cushions only manage end-of-travel deceleration; for true load-holding without continuous air pressure, integrate an external pilot-operated check valve or specify a BSAI clamp-lock cylinder. This unit uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ125AX195-10 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 acts as a mechanical stop, allowing you to shorten the 195 mm nominal stroke by up to 10 mm, resulting in a 185-195 mm usable travel window. It sets the travel end but does not lock or hold the load without live air pressure.
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