Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX125-50 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 SAIJ80AX125-50
The AirTAC SAIJ80X125-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 75-125 mm usable travel window, allowing you to dial back the 125 mm nominal stroke by up to 50 mm during commissioning.
This variant uses a SUS420J2 stainless steel rod (code A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, and air cushions at both ends manage deceleration. The rear stopper acts only as a travel end adjustment, not a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-50 |
|---|---|
| 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 SAIJ80AX125-50
| 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 SAIJ80AX125-50 Is Used
Product Changeovers
Dial in the 75-125 mm travel window on the fly to accommodate varying package sizes without changing the cylinder.
End-Stop Tuning
Fine-tune the retract end position during machine setup to perfect the 2513 N pressing action.
Variable Diverter
Adjust the stroke length precisely to deflect items of different widths on a sorting line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-50 the Right Cylinder?
Choose this 80 mm bore when an application requires high thrust but exact end-positioning varies by product size. If you need less force, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa. The 50 mm adjustment range is ideal for frequent machine changeovers, replacing the need to physically swap cylinders or bolt on external stops.
Because the SAIJ80X125-50 lacks a magnet for sensors, position detection requires external switches. If the machine loses air pressure, this cylinder will not hold its load; you must use a SAIL pneumatic lock or an external rod lock for fail-safe holding. It uses a PT G3/8 port and supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80AX125-50 FAQ
The rear adjuster screw lets you shorten the 125 mm nominal stroke by up to 50 mm, creating a 75-125 mm travel window. It functions as a mechanical stop and does not lock the load without live air pressure.
At the maximum 1.0 MPa operating pressure, the push force reaches 4523 N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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