Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX135-75 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 SAIJ80AX135-75
The AirTAC SAIJ80X135-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 135 mm stroke that can be mechanically trimmed back by up to 75 mm, yielding a highly flexible 60-135 mm usable travel window. This wide adjustment range is ideal for dialing in exact end positions during machine commissioning or product changeovers without swapping hardware.
This specific SKU is configured with a SUS420J2 stainless steel rod for enhanced corrosion resistance and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a mechanical stop to set the retract end position; it does not lock or hold the load without live air pressure. For position-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-75 |
|---|---|
| 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 SAIJ80AX135-75
| 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 SAIJ80AX135-75 Is Used
Machine Commissioning
Dial in the exact 60-135 mm retract end position during setup, replacing the need for external stopper blocks or custom machined spacers.
Product Changeover
Quickly adapt the travel window on packaging lines when switching between different package sizes, minimizing downtime.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-75 the Right Cylinder?
The 75 mm adjustment range is exceptionally wide, making it perfect for prototyping or lines running multiple product sizes. When replacing an ISO 15552 cylinder, match the 80 mm bore, 135 mm stroke, PT port threads, and the required mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because this cylinder lacks a magnet (-S), it cannot host CMSE or DMSE sensors without modification. At 135 mm stroke, side loads are moderate, but ensure proper guiding for heavy assemblies.
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 SAIJ80AX135-75 FAQ
A rear-mounted mechanical screw acts as a stopper, allowing you to shorten the 135 mm nominal stroke by up to 75 mm. This creates a usable travel window of 60 to 135 mm. The adjuster only sets the end position; it does not lock the load without continuous air pressure.
At 0.9 MPa, the push force increases to 4523 N. The operational speed range for this 80 mm bore is 30-800 mm/s.
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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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