Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30 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 SAIJ125X195-30
The AirTAC SAIJ125X195-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 165-195 mm from its 195 mm nominal stroke. It delivers 6136 N of pull force at 0.5 MPa, fitting heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This model features a 32 mm carbon steel rod and M27x2 rod thread, providing high structural rigidity to manage substantial side loads. The rear stopper mechanism allows fine end-position tuning at commissioning without swapping the cylinder or adding external stops. It operates at 30-500 mm/s and uses a PT tapered G1/2 port for reliable pneumatic sealing.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30 |
|---|---|
| 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 SAIJ125X195-30
| 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 SAIJ125X195-30 Is Used
Product Changeover
Dial in the 165-195 mm travel window during format size changes on a packaging line without replacing the cylinder or adding external shims.
End-Position Tuning
Fine-tune the retract end-stop during machine commissioning to perfect the seating of heavy components, absorbing mechanical variance via the rear screw.
Heavy Assembly Press
Leverage the 6136 N pull force to draw large parts together, using the adjustable stop to prevent over-travel and crushing of the workpiece.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30 the Right Cylinder?
Choose this 125 mm bore when an 80 mm bore (2268 N pull at 0.5 MPa) is insufficient for moving heavy jigs, or step down if a 100 mm bore (3681 N pull) handles the load with less air consumption. The 30 mm adjustment range is ideal for product-size changeovers on a line, letting you dial in the exact end-stop without machining new hard stops. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Remember that the rear adjuster acts only as a travel stop and the air cushions handle deceleration; neither will hold a load safely without live air pressure. For true fail-safe load holding, select a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. Because the 195 mm stroke is relatively short for this large bore, external side-load guides are less critical here than on longer strokes, but the rod end should still be aligned to prevent premature seal wear. This profile cylinder is dimensionally interchangeable per ISO 15552.
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 SAIJ125X195-30 FAQ
It features a rear adjusting screw that lets you shorten the effective stroke by up to 30 mm, providing a usable travel window of 165-195 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
At 0.5 MPa, it provides 6136 N of pull force and 8590 N of push force. At the maximum operating pressure of 1.0 MPa, it delivers up to 1251 kgf of push force.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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