Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX40-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 40mm 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
- Stroke40 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 SAIJ80AX40-40
It features a SUS420J2 stainless steel rod and PT tapered ports. Because the 40 mm nominal stroke matches the 40 mm adjustment code, operators can dial the effective travel down to a zero-mm minimum, creating a highly precise 0-40 mm usable window for exact end-position tuning.
This adjustable stopper allows fine-tuning at commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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 SAIJ80AX40-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 SAIJ80AX40-40 Is Used
Precision End-Stop Tuning
Dial in the exact 0-40 mm travel window during machine commissioning to perfect part seating without machining new spacer blocks.
Rapid Product Changeover
Quickly adjust the rear stopper screw on the line to accommodate varying package sizes or material thicknesses on the fly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-40 the Right Cylinder?
The 25 mm rod and M20x1.5 thread handle high side loads well, though even short strokes perform best with proper external guiding.
Choose the SAIJ adjustable format over a fixed SAI cylinder when machine setups require frequent physical repositioning of the end-stop. For a direct ISO 15552 replacement, match the 80 mm bore, 40 mm stroke, -40 adjustment, PT ports, and desired mounting hardware. Since no -S magnet is specified, position sensing requires external or custom solutions rather than AirTAC CMSE or DMSE switches.
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 SAIJ80AX40-40 FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw allows you to trim the effective travel anywhere within a 0-40 mm window. It functions as a mechanical stop to decelerate the piston, but it is not a lock and will not hold the load without continuous air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.