Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10 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 SAIJ125X190-10
The AirTAC SAIJ125X190-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5 MPa. It features a carbon steel piston rod and PT tapered port threads. By integrating an external stopper screw, this unit provides a usable travel window of 180 to 190 mm, allowing you to trim up to 10 mm off the nominal stroke without swapping hardware.
This adjustable design is ideal for fine-tuning end positions during machine commissioning. The rear adjuster acts purely as a travel stop and works alongside standard air cushions to control deceleration, but it does not hold the load without live air pressure. For load-holding requirements, consider an external rod lock or the AirTAC SAIL series. This cylinder uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10 |
|---|---|
| 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 SAIJ125X190-10
| 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 SAIJ125X190-10 Is Used
Press Fit Tuning
Dial in the exact 180 to 190 mm insertion depth for press fits during initial setup, preventing damage to heavy assemblies by fine-tuning the end stop.
Product Changeover
Quickly adjust the rear stopper by up to 10 mm to accommodate slightly different product lengths on a high-force assembly line without changing the cylinder.
Heavy Load Positioning
Move substantial payloads with 6136N of thrust while relying on the adjustable end-position to perfectly seat large components at the end of the stroke.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10 the Right Cylinder?
Select this 125 mm bore cylinder when your application requires substantial thrust, stepping up from a 100 mm bore that provides 3927N push force at 0.5 MPa. The adjustable 180 to 190 mm travel window is chosen over a fixed-stroke SAI cylinder when you need variable end-stops for quick product changeovers. To match this ISO 15552 footprint exactly, specify the 125 mm bore, 190 mm stroke, 10 mm adjustment, PT port thread, and the required mounting accessory. Because the 190 mm stroke is under 300 mm, side-load stress is manageable, though external guides are still recommended for heavy lateral loads. Since no magnet is specified, position sensing via CMSE or DMSE switches is not enabled.
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 SAIJ125X190-10 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136N of push force and 5734N of pull force. At the maximum pressure of 1.0 MPa, it can deliver up to 1251 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 190 mm down to 180 mm. This creates a 180-190 mm travel window for fine-tuning the end position at commissioning without needing external stops.
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