Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100S 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 SAIJ125AX190-100S
The AirTAC SAIJ125X190-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5MPa. It features a SUS420J2 stainless steel rod and a built-in magnet for position sensing. With a nominal 190mm stroke and a 100mm adjustment range, you can dial back the effective travel to anywhere between 90mm and 190mm during commissioning without swapping hardware.
This wide 100mm trim window is ideal for product-size changeovers on automated lines. The adjuster acts purely as a mechanical stop for end-position tuning and does not lock the load without live air. It includes PT tapered ports and variable air cushions at both ends to manage kinetic energy, operating at speeds of 30-500mm/s.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100S |
|---|---|
| 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 SAIJ125AX190-100S
| 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 SAIJ125AX190-100S Is Used
Variable Product Changeover
Leverage the 90-190mm adjustable travel window to rapidly reconfigure end-stops when running different sized products on the same packaging line.
Machine Setup Fine-Tuning
Dial in the exact retract position during commissioning using the rear stopper, avoiding the need to physically swap out cylinders or add external shims.
Heavy Material Handling
Utilize the 6136N push force at 0.5MPa to move heavy pallets or workpieces, relying on the robust 32mm rod to withstand industrial handling loads.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX190-100S the Right Cylinder?
Choose this 125mm bore when a 100mm bore provides insufficient thrust (offering 3927N push at 0.5MPa) or when an 80mm bore is too weak (2513N). The 100mm adjustment range is selected when a machine handles vastly different product sizes, allowing the rear stopper to fine-tune the retract end-position on the fly rather than relying on fixed SAI cylinders. For exact ISO 15552 replacement matching, verify the 190mm stroke, 100mm adjuster, PT port thread, and the -S magnet requirement.
Since the 190mm stroke is under the 300mm threshold, side-load stress is moderate, but the 32mm rod diameter still requires external guiding for heavy lateral loads. Remember that the rear adjuster only sets the travel limit; for true load-holding without pneumatic pressure, you must integrate an external rod lock or select an AirTAC SAIL or BSAI cylinder.
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 SAIJ125AX190-100S FAQ
The rear adjuster screw allows you to shorten the nominal 190mm stroke by up to 100mm, creating a usable travel window of 90-190mm. It functions as a mechanical stop to set the end position and does not act as a lock.
At 0.5MPa operating pressure, it provides 6136N of push force and 5734N of pull force. At 0.7MPa, the push force increases to 8590N.
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