Airtac SAIJ125 Adjustable Cylinder SAIJ125X95-50
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X95-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 95mm 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
- Stroke95 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X95-50
The AirTAC SAIJ125X95-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 45-95 mm from its 95 mm nominal stroke. Delivering 6136 N of push force and 5734 N of pull force at 0.5 MPa, it is built to handle heavy loads with precision. The extruded aluminum barrel features sensor grooves on both sides for straightforward position monitoring.
This model features a 32 mm carbon steel rod and a PT G1/2 port. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning. It uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X95-50 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X95-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 95 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 SAIJ125X95-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×95 | 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 SAIJ125X95-50 Is Used
Variable End-Stop Tuning
Dial in the exact retract distance within the 45-95 mm window during machine setup, allowing operators to fine-tune end positions without swapping cylinders.
Product Size Changeover
Quickly adapt heavy-duty production lines to varying product dimensions by adjusting the 50 mm travel range at the rear stopper, minimizing downtime.
Heavy Load Positioning
Leverage the 6136 N push force to move substantial masses while retaining the flexibility to shorten the effective stroke for different tooling configurations.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X95-50 the Right Cylinder?
Choose this 125 mm bore cylinder when an application requires substantial thrust—such as 6136 N at 0.5 MPa—but also demands variable end-stops for product changeovers. If your process requires less force, stepping down to an 80 mm bore provides 2513 N of push force at 0.5 MPa, whereas a 160 mm bore yields 10053 N for heavier duty. The adjustable stroke prevents the need to swap cylinders or bolt on external stops when dialing in final positions.
For ISO 15552 replacement matching, ensure the 95 mm stroke, 50 mm adjustment range, PT G1/2 port, and standard carbon steel rod align with your mounting requirements. Because the nominal stroke is under 300 mm, side-load concerns are reduced, though an external guide is still recommended for heavy lateral loads. Remember that the rear adjuster is a travel stop, not a lock; for load-holding without live air pressure, select an AirTAC SAIL or BSAI cylinder.
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 SAIJ125X95-50 FAQ
At an operating pressure of 0.5 MPa, this 125 mm bore cylinder provides a push force of 6136 N and a pull force of 5734 N. At 0.9 MPa, the push force increases to 11045 N.
The rear mechanical stopper allows you to trim the effective travel back by up to 50 mm from the 95 mm nominal stroke, creating a usable 45-95 mm positioning window. This adjuster functions as a travel stop and does not hold 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 SAIJ125X95-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.