Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-75 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 SAIJ125X195-75
The AirTAC SAIJ125X195-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 6136 N of push force at 0.5 MPa. By turning the external stopper screw, you can trim the effective travel anywhere within a 120 to 195 mm window. This allows precise end-position tuning at commissioning without swapping out the entire actuator or adding external stops.
The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement. It uses a PT tapered port thread and a robust 32 mm carbon steel rod with an M27x2 thread, providing excellent resistance against side loads. The standard seal material is TPU, and the cylinder relies on variable air cushions at both ends to decelerate the moving mass smoothly.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-75 |
|---|---|
| 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 SAIJ125X195-75
| 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 SAIJ125X195-75 Is Used
Product Changeover
Dial in the 120-195 mm travel window during format changeovers on a packaging line, accommodating different carton sizes without changing the cylinder.
Machine Setup
Fine-tune the retract end-position during initial commissioning to perfectly align heavy clamping fixtures without machining custom spacers.
Variable End Stops
Provide adaptable stopping points for heavy-duty assembly presses where the final position of the 6136 N thrust needs occasional adjustment.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-75 the Right Cylinder?
Choose this 125 mm bore when an 80 mm bore (providing 2513 N push force at 0.5 MPa) is insufficient, but a 160 mm bore (10053 N) would be excessive. The 75 mm adjustment range is ideal for production lines handling varying product sizes, allowing rapid changeovers simply by dialing in a new retract stop. For applications requiring true load-holding without live air pressure, note that this rear adjuster acts only as a travel stop, not a lock; you should instead consider an SAIL air-released lock or a BSAI clamp-lock cylinder.
When specifying a replacement, ensure you match the 125 mm bore, 195 mm nominal stroke, 75 mm adjustment range, PT port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 195 mm stroke is relatively long for this high-thrust class, always support the load with an external guide rail to prevent excessive rod side-loading and premature seal wear.
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 SAIJ125X195-75 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. At its maximum 1.0 MPa pressure, it achieves a top push force of 11045 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 195 mm nominal stroke by up to 75 mm, providing an effective usable travel range of 120 to 195 mm. It only sets the end position and does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.