Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10S
The AirTAC SAIJ125X200-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136N of push force at 0.5 MPa. Its integrated -S magnet enables position detection with AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves. The carbon steel piston rod features an M27x2 thread, providing a robust interface for heavy loads.
With a 10mm adjustment range, this model creates a precise 190-200mm usable travel window for fine-tuning retract end positions during commissioning. The rear adjuster acts purely as a mechanical stop to set the travel limit and does not hold the load without live air pressure. For load-holding requirements without continuous air, an external rod lock or related SAIL pneumatic lock cylinder is required.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 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 SAIJ125X200-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×200 | 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 SAIJ125X200-10S Is Used
Precision End-Stop Tuning
Dial in the exact 190-200mm retract position during machine commissioning to achieve precise contact without repositioning the entire cylinder assembly.
Product Changeover
Quickly adjust the 10mm travel window on a packaging line to accommodate slight variations in product dimensions without changing hardware.
Heavy Forming Setup
Leverage the 6136N thrust at 0.5 MPa for heavy pressing operations while using the rear stopper to set safe, repeatable lower limits.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-10S the Right Cylinder?
Select this 125mm bore cylinder when an application demands high thrust (6136N push at 0.5 MPa) alongside micro-adjustments to the retract position. If your setup requires slightly less force, stepping down to an 80mm bore yields 2513N; if more power is needed, a 160mm bore provides 10053N. The 10mm adjustment window is ideal for applications needing exact end-stop tuning without adding external stops.
As a dimensionally interchangeable ISO 15552 profile cylinder, it matches standard mounting footprints using Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets (omitting FB, CA, CB, and CR). This made-to-order configuration includes a PT tapered port thread, carbon steel rod, and an -S magnet. For any stroke of 300mm or more, ensure an external guide supports the rod to prevent excessive side-loading.
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 SAIJ125X200-10S FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At a maximum 1.0 MPa, it can deliver up to 1251 kgf.
The rear adjuster acts as a mechanical stop that shortens the nominal 200mm stroke by up to 10mm, creating a 190-200mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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