Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 195mm 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
- Stroke195 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-10S
The AirTAC SAIJ125X195-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to fine-tune the retract end-position by up to 10 mm. This yields a usable travel window of 185-195 mm, letting you dial in the exact stop without swapping out the barrel or bolting on external stops. It delivers a robust 6136 N of push force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks.
This variant includes a standard carbon steel piston rod and a magnetic piston (-S) for use with AirTAC CMSE reed and DMSE electronic solid-state sensors, which seat neatly into the dual-side sensor grooves on the extruded aluminum barrel. The rear adjuster functions purely as a mechanical travel stop to set the deceleration point; it is not a lock, so the cylinder will not hold a load without live air pressure. For true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 195 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 SAIJ125X195-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×195 | 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 SAIJ125X195-10S Is Used
Machine Setup & Changeover
Dial in the exact 185-195 mm retract stop during line changeovers without physically swapping cylinders or repositioning external deadeners.
Variable End-Stop Tuning
Perfect for assemblies requiring precise final positioning, letting operators trim the stroke up to 10 mm to accommodate material thickness variations.
Heavy-Duty Positioning
Leverage the 6136 N push force at 0.5 MPa to move heavy pallets or fixtures, using the rear screw to set the exact resting position.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-10S the Right Cylinder?
Choose this 125 mm bore when you need more thrust than an 80 mm bore provides (2513 N push at 0.5 MPa) but want to avoid the larger footprint and 10053 N force of a 160 mm cylinder. The adjustable-stroke design is selected over a fixed SAI cylinder when a machine requires precise end-stop tuning during commissioning or frequent product-size changeovers. As a dimensionally interchangeable ISO 15552 cylinder, replacement requires matching the 125 mm bore, 195 mm stroke, 10 mm adjustment, PT tapered port threads, and the -S magnet.
Because the 195 mm stroke is relatively short for this bore size, side-load concerns are minimal, though the substantial 32 mm rod and M27x2 thread provide excellent rigidity and side-load resistance. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
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 SAIJ125X195-10S FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. If you need more power, stepping up to a 160 mm bore yields 10053 N of push force.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 195 mm nominal stroke by up to 10 mm, creating a 185-195 mm usable travel window. It sets the end-position but does not lock the load without live air pressure.
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