Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-100 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 SAIJ125AX195-100
The AirTAC SAIJ125X195-100 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It delivers a robust 6136N push force at 0.5 MPa, utilizing a 32mm SUS420J2 stainless steel rod with an M27x2 thread. The integrated rear stopper allows you to dial back the effective travel, creating a 95-195mm usable window. This enables precise end-position tuning at commissioning without swapping out the entire barrel.
Equipped with PT tapered G1/2 ports and self-adjusting air cushions at both ends, this extruded aluminum body is built for heavy-duty actuation. The rear adjuster acts purely as a travel stop to set deceleration limits, not as a load-holding lock. For applications requiring position holding without live air pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-100 |
|---|---|
| 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 SAIJ125AX195-100
| 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 SAIJ125AX195-100 Is Used
Product Size Changeovers
Quickly modify the effective stroke from 95 to 195mm when switching between different packaging formats on the same conveyor line.
Heavy Fixture Positioning
Leverage 6136N of thrust at 0.5 MPa to move heavy machining fixtures, using the rear stopper to fine-tune the final clamping position.
Commissioning Adjustments
Dial in the exact end-of-stroke location during machine setup without fabricating external stopper blocks or ordering custom cylinders.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX195-100 the Right Cylinder?
Choose this 125mm bore when 80mm (2513N push at 0.5 MPa) is insufficient for moving heavy fixtures, or step down if 100mm (3927N) provides enough force. The 100mm adjustment range is ideal for production lines running mixed product sizes, allowing operators to change the end-stop position on the fly rather than physically replacing a fixed-stroke SAI cylinder.
As a dimensionally interchangeable ISO 15552 profile cylinder, replacements match by bore, 195mm stroke, PT G1/2 port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that SAIJ omits FB, CA, CB, and CR mounts. Because the stroke is 195mm, ensure adequate external guiding to prevent excessive side-loading on the piston rod.
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 SAIJ125AX195-100 FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 1251 kgf.
The rear adjuster screw allows you to trim the nominal 195mm stroke by up to 100mm, providing a usable travel window of 95-195mm. This stopper sets the end position but does not lock the load without live air pressure.
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Standard models usually ship in 3-4 days.
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