Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 190mm 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
- Stroke190 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100
The AirTAC SAIJ125X190-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 90-190 mm. It delivers robust performance with 5734 N of pull force at 0.5 MPa and up to 11045 N at 0.9 MPa. This bore features a 32 mm diameter piston rod with an M27x2 thread and PT tapered port threading. The rod material is SUS420J2 stainless steel (code A), offering excellent corrosion resistance for harsh environments.
This model omits the FB, CA, CB, and CR mounting options, utilizing a reduced ISO 15552 mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts as a travel stop to fine-tune end positions during commissioning; it is not a locking mechanism. Without live air pressure, the cylinder cannot hold its load, requiring an external rod lock or a SAIL pneumatic lock cylinder for secure load-holding.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 190 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 SAIJ125AX190-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×190 | 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 SAIJ125AX190-100 Is Used
Product Changeovers
Dial in the 90-190 mm travel window during machine format changes to accommodate varying package sizes without replacing hardware.
End-Position Tuning
Fine-tune the retract end-position during initial commissioning to perfect pressing or clamping depth on the assembly line.
Heavy-Duty Forming
Leverage the 11045 N output force at 0.9 MPa for robust metal bending or stamping tasks requiring precise depth control.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100 the Right Cylinder?
Choose this 125 mm bore cylinder when an application requires heavy force combined with variable end-stops. If your process requires less thrust, stepping down to a 100 mm bore yields 3681 N of pull force at 0.5 MPa. The 100 mm adjustment range is ideal for machinery that undergoes frequent product-size changeovers, allowing operators to dial in the exact stroke without swapping the cylinder or adding external stops.
When replacing an ISO 15552 cylinder, match the 125 mm bore, 190 mm stroke, PT G1/2 port, and the chosen mounting style. Because this specific SKU lacks the -S magnet option, it cannot host CMSE reed or DMSE electronic sensors. For any stroke at or above 300 mm, always use an external guide to prevent rod side-load damage, though this 190 mm stroke operates safely within standard support limits.
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 SAIJ125AX190-100 FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull force. At 0.9 MPa, the push force reaches 11045 N.
The rear adjuster screw acts as an external stop, allowing you to shorten the 190 mm nominal stroke by up to 100 mm, creating a 90-190 mm usable travel window.
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