Airtac SAIJ80 Adjustable Cylinder SAIJ80AX175-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX175-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 175mm 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
- Stroke175 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 SAIJ80AX175-50
The AirTAC SAIJ80X175-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This creates a usable stroke window of 125-175 mm, letting you dial in the exact retract end-position during commissioning without swapping hardware.
Built with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance, this extruded aluminum cylinder omits heavy tie-rods and utilizes PT tapered port threads (G3/8). The rear stopper screw acts purely as a travel limit and works in tandem with adjustable air cushions at both ends to decelerate the load smoothly. For applications requiring the cylinder to hold its position without live air pressure, a standard SAIJ is insufficient and you must look toward an external rod lock or the AirTAC SAIL locking cylinder series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX175-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX175-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 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 SAIJ80AX175-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SAIJ80AX175-50 Is Used
Machine Changeovers
Quickly modify the retract distance by up to 50 mm when switching between product sizes on a packaging line, avoiding the need to physically unbolt and replace the cylinder.
End-Position Calibration
Fine-tune the final resting position of a heavy press or clamping fixture during initial setup, ensuring perfect alignment without adding external mechanical stops.
Variable Sorting Stops
Adjust the stroke window on the fly for a diverter arm handling different package depths, relying on the 25 mm rod to withstand repetitive side-loading forces.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX175-50 the Right Cylinder?
Selecting this 80 mm bore makes sense when your application requires substantial force, pushing 4523 N at 0.9 MPa, but stepping up to a 100 mm bore (delivering 7068 N) would be overkill and consume excess space. Conversely, if your load only requires 2805 N, stepping down to a 63 mm bore saves valuable mounting real estate. The adjustable 125-175 mm window is specifically beneficial for product changeovers on a line, allowing operators to set new end stops rapidly.
Because the nominal stroke is 175 mm, external guiding is less critical than on longer strokes, but the rigid 25 mm rod still requires alignment to prevent premature seal wear. This SAIJ model is dimensionally interchangeable per ISO 15552, utilizing a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). It lacks a standard piston magnet, so position sensing requires adding the -S option to use AirTAC CMSE reed or DMSE electronic solid-state sensors in the dual sensor grooves.
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 SAIJ80AX175-50 FAQ
It features a rear adjusting screw that acts as a mechanical stopper, allowing you to reduce the nominal 175 mm stroke by up to 50 mm. This provides a usable travel window of 125-175 mm, which can be fine-tuned during commissioning without changing the cylinder itself.
At the maximum rated pressure of 1.0 MPa, it can deliver up to 513 kgf.
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