Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10S 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 SAIJ125X190-10S
The AirTAC SAIJ125X190-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 180 to 190 mm, allowing you to dial in the exact retract position without adding external stops. Equipped with a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE solid-state sensors mounted into the dual-side barrel grooves.
Delivering 6136N of push force at 0.5 MPa, this bore size handles heavy loads with precision. The carbon steel rod and M27x2 thread offer robust durability against side loads, while the PT tapered port ensures a secure pneumatic connection. The rear stopper screw acts purely as a travel end-position tuner, not a lock, meaning live air pressure is always required to hold the load.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10S |
|---|---|
| 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 SAIJ125X190-10S
| 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 SAIJ125X190-10S Is Used
Variable End-Stop Tuning
Dial in the 180-190mm travel window during machine commissioning to achieve precise end-positioning without swapping cylinders.
Product Changeover
Quickly adjust the retract stroke by up to 10mm on packaging lines when handling slightly different product sizes.
Heavy Assembly Press
Leverage the 6136N push force at 0.5 MPa to press components securely, using the rear screw to fine-tune the final position.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X190-10S the Right Cylinder?
Choose this adjustable-stroke model when your machine setup requires fine end-position tuning during commissioning or product changeover, avoiding the need to swap out a fixed-stroke SAI cylinder. If your application requires less force, stepping down to a 100mm bore yields 3927N at 0.5 MPa; stepping up to a 160mm bore provides 10053N.
For a complete ISO 15552 replacement match, verify the 125mm bore, 190mm stroke, 10mm adjustment, PT G1/2 port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR. Because this cylinder relies on air pressure to maintain position, it does not hold loads without live air—use SAIL or BSAI cylinders for positive locking.
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 SAIJ125X190-10S FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. It can reach a maximum push force of 1251 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 190mm nominal stroke down to 180mm. This allows for fine-tuning the end position at commissioning without changing the cylinder itself.
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