Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-40S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX135-40S 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 SAIJ80AX135-40S
The AirTAC SAIJ80X135-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 40 mm. This creates a usable stroke window of 95 to 135 mm, letting you dial in the exact retract end-position at commissioning without swapping hardware.
This variant includes a magnet for position sensing with CMSE reed or DMSE electronic switches. It uses an SUS420J2 stainless steel rod for improved corrosion resistance and features PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides, and the rear stopper acts purely as a travel end-limit, not a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-40S |
|---|---|
| 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 SAIJ80AX135-40S
| 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 SAIJ80AX135-40S Is Used
Machine Changeover
Quickly adjust the retract distance by up to 40 mm when switching between product sizes on a packaging line, avoiding the need to physically swap out cylinders.
End-Position Truing
Fine-tune the exact end-of-stroke position during machine commissioning to align tooling perfectly, compensating for mechanical tolerance stack-up.
Variable End Stops
Use the 95-135 mm travel window to set precise retract limits for clamping or pressing applications where the material thickness varies between production runs.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-40S the Right Cylinder?
The adjustable 95-135 mm window is perfect for product changeovers on a line where retract distances vary slightly, saving you from stocking multiple fixed-stroke SAI cylinders. To match this ISO 15552 footprint exactly, specify an 80 mm bore, 135 mm stroke, PT ports, and the -S magnet.
Because the 135 mm stroke is relatively short, side-load risks are minimal, but always ensure the load is guided externally. Remember that the rear adjuster and air cushions only set the travel end and deceleration; they do not hold the load without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ80AX135-40S FAQ
At its maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 135 mm nominal stroke by up to 40 mm, providing an effective travel range of 95 to 135 mm. It sets the end position but does not lock the load without continuous 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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Most inquiries answered within 7-8 hours.
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