Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX155-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 155mm 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
- Stroke155 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 SAIJ80AX155-75S
The AirTAC SAIJ80X155-75-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. With a 155 mm nominal stroke and a 75 mm adjustment range, it provides a usable travel window of 80 to 155 mm. This allows you to fine-tune the retract end-position at commissioning without swapping the barrel or adding external stops.
This variant ships with a SUS420J2 stainless steel rod (code A) for improved corrosion resistance, PT tapered port threads, and a built-in magnet for position sensing. The magnet pairs directly with AirTAC CMSE reed and DMSE electronic sensors fitted into the dual-side extruded barrel grooves. The rear adjuster acts purely as a travel stop to set the end-position; it does not hold the load dynamically. For load-holding without live air pressure, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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 SAIJ80AX155-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×155 | 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 SAIJ80AX155-75S Is Used
Machine Changeover
Dial the stroke back from 155 mm to 80 mm during product size transitions to accommodate different part lengths without swapping hardware.
End-Position Tuning
Use the 75 mm rear adjuster to fine-tune the retract end-stop during commissioning, absorbing mechanical tolerances without external shims.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-75S the Right Cylinder?
The 75 mm adjustment range is ideal for product-size changeovers on a line, letting you dial in the exact end-stop without mechanical modifications. Unlike a fixed-stroke SAI cylinder, this adjustable model absorbs setup tolerances directly at the rear screw.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 155 mm stroke, 75 mm adjustment, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, intentionally omitting FB, CA, CB, and CR. Because the 25 mm rod and M20x1.5 thread handle significant side loads, ensure external guiding is used if lateral forces are present.
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 SAIJ80AX155-75S FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to trim the effective stroke by up to 75 mm. This creates a usable travel window between 80 mm and 155 mm, which can be fine-tuned during commissioning without replacing the cylinder.
At 0.9 MPa, the push force increases to 4523 N.
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