Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 1000mm 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
- Stroke1000 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10
The AirTAC SAIJ125X1000-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 6136N pull force at 0.5 MPa and incorporates a SUS420J2 stainless steel rod for enhanced durability against moisture. The integrated rear stopper allows you to trim the effective travel, providing a 990 to 1000 mm usable window for precise end-position calibration.
Equipped with PT tapered G1/2 ports and dual-side sensor grooves, this 125 mm bore unit supports speeds of 30 to 500 mm/s. The external adjuster acts purely as a travel stop to dictate deceleration endpoints, meaning it will not hold a load without continuous live air pressure. For true load-holding requirements, consider integrating an external rod lock or exploring the SAIL or BSAI pneumatic locking series.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 1000 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 SAIJ125AX1000-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×1000 | 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 SAIJ125AX1000-10 Is Used
Long-Stroke Press Feed
Dial in the exact material cut-off position over a 990-1000 mm window without adding bulky external stopper blocks to your press line.
Assembly Line Changeover
Quickly fine-tune the retracted end-position during product size transitions, saving minutes of manual recalibration per setup cycle.
Automated Material Handling
Leverage 6136N of pulling force to index heavy pallets while using the rear screw to compensate for mechanical drift over time.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX1000-10 the Right Cylinder?
Selecting this 125 mm bore cylinder provides 6136N of pulling force at 0.5 MPa, offering a substantial step up from the 80 mm bore which yields 2268N. The 10 mm adjustment range is specifically advantageous for dialing in exact end-stops during machine commissioning or product changeover, preventing the need to physically swap out a fixed-stroke SAI cylinder. When replacing an ISO 15552 unit, match the 1000 mm stroke, 10 mm adjuster, PT G1/2 port, and your required mounting style.
Because this model features a 1000 mm stroke, the 32 mm diameter rod and M27x2 thread will experience significant leverage forces if subjected to lateral loading. An external guide rail is strongly recommended to support the load and prevent premature seal wear. Note that SAIJ utilizes a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
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 SAIJ125AX1000-10 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136N of pull force and 8590N at 0.7 MPa. The maximum push force is 11045N at 0.9 MPa.
The rear adjusting screw acts as an external stopper, allowing you to shorten the nominal 1000 mm stroke by up to 10 mm, creating a 990 to 1000 mm usable travel window. It sets the deceleration endpoint but does not lock the load without live air pressure.
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