Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX135-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 135mm 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
- Stroke135 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 SAIJ80AX135-75S
The AirTAC SAIJ80X135-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 60 to 135 mm. The barrel features sensor grooves on both sides, and the integrated magnet (-S) supports position detection via AirTAC CMSE reed or DMSE electronic solid-state switches.
This variant features an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and uses PT tapered port threads (G3/8). The rear adjuster acts purely as a mechanical stop to decelerate the travel end; it does not hold the load without live air pressure. For load-holding requirements without continuous air, an external rod lock or related types like SAIL or BSAI are required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 135 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 SAIJ80AX135-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×135 | 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 SAIJ80AX135-75S Is Used
Variable Product Changeover
Dial in the exact end-position for different sized parts on the same line, utilizing the 60-135 mm travel window without swapping cylinders.
Machine Setup Fine-Tuning
Eliminate mechanical shimming during commissioning by using the rear stopper to perfectly set the 80 mm bore's retraction point.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-75S the Right Cylinder?
The 75 mm adjustment window is exceptionally wide, making it ideal for machines processing multiple product sizes on a single line. The SUS420J2 rod and M20x1.5 rod thread provide excellent durability against side loads, though any stroke exceeding 300 mm would still require an external guide.
To match this exact ISO 15552 interchangeable cylinder, specify: 80 mm bore, 135 mm nominal stroke, 75 mm adjustment, PT G3/8 port, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR. Since the rear screw is a stop and not a lock, never rely on the air cushion or adjuster to hold a load without live air.
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 SAIJ80AX135-75S FAQ
At the maximum 1.0 MPa pressure, it achieves a maximum push force of 513 kgf.
The rear adjuster acts as a mechanical stop that lets you trim the effective stroke back by up to 75 mm from the 135 mm nominal length, creating a usable travel window of 60 to 135 mm. It only sets the travel end and does not lock the load without live air pressure.
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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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