Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX125-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 125mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-75
The AirTAC SAIJ80X125-75 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 50-125 mm usable travel window, allowing you to dial back the nominal 125 mm stroke by up to 75 mm during commissioning.
This adjustable model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. The rear adjuster acts purely as a mechanical stop to fine-tune end positions without adding external stops; it does not hold the load without live air pressure. For load-holding requirements without continuous air, consider an external rod lock or related types like SAIL or BSAI.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SAIJ80 Adjustable Cylinder SAIJ80AX125-75 Is Used
Product Changeover
Quickly adjust the end-stop from 125 mm down to 50 mm to accommodate different package sizes on a packaging line without changing cylinders.
Commissioning Calibration
Fine-tune the exact retraction point during machine setup, using the rear screw to perfect tooling alignment without adding external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-75 the Right Cylinder?
An adjustable stroke is highly advantageous for product-size changeovers on a line, letting you set variable end-stops on the fly instead of physically swapping out a fixed-stroke SAI cylinder. When matching ISO 15552 replacements, verify the 125 mm stroke, 75 mm adjustment range, PT port thread, and the specific mounting bracket.
Because the stroke is 125 mm, standard side-loading rules apply: while the 25 mm rod and M20x1.5 thread handle moderate side loads well, any long unsupported tooling should still use an external guide rail to prevent binding. Standard operating speed is 30-800 mm/s.
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 SAIJ80 Adjustable Cylinder SAIJ80AX125-75 FAQ
At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm from the nominal 125 mm, giving a usable travel window of 50-125 mm. The adjuster acts as a mechanical stop and does not lock or hold the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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