Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX140-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 140mm 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
- Stroke140 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 SAIJ80AX140-30S
The AirTAC SAIJ80X140-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 110 to 140 mm. This model features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and includes a magnet for position sensing.
The integrated rear stopper lets you dial back the nominal 140 mm stroke by up to 30 mm without adding external stops or swapping the cylinder. It uses a G3/8 port and operates at speeds between 30 and 800 mm/s. Remember that the rear adjuster acts strictly as a travel stop, not a lock; the cylinder cannot hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 140 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 SAIJ80AX140-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×140 | 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 SAIJ80AX140-30S Is Used
Product Size Changeovers
Dial in the 110 to 140 mm travel window on the fly to accommodate different product lengths without physically swapping out the cylinder.
Machine Setup Tuning
Fine-tune the retract end-position during initial commissioning to achieve perfect alignment, eliminating the need for external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-30S the Right Cylinder?
The adjustable 110-140 mm travel window is ideal for product-size changeovers on a line, giving you flexibility that a fixed-stroke SAI cannot match. For load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder instead.
To replace an existing ISO 15552 cylinder, match the 80 mm bore, 140 mm nominal stroke, 30 mm adjustment range, PT tapered port threads, and the -S magnet requirement. This SAIJ variant supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options. The 25 mm rod and M20x1.5 thread provide robust resistance to side loading, though any stroke over 300 mm would require external guiding.
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 SAIJ80AX140-30S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 30 mm, creating a 110 to 140 mm usable travel window. It only sets the travel end and does not lock or hold the load without live air pressure.
At 0.7 MPa, the push force increases to 3518 N.
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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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