Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 240mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke240 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-40S
The AirTAC SAIJ80X240-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N push force at 0.5MPa, utilizing a 25mm piston rod and G3/8 ports. The integrated -40mm adjustment screw creates a usable travel window between 200 and 240mm, allowing precise end-position tuning during commissioning without swapping hardware.
This variant features an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions while offering a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 240 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×240 | 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 SAIJ80AX240-40S Is Used
Product Changeovers
Quickly fine-tune the 200-240mm stroke window during format size changes on packaging lines without replacing the cylinder.
End-Stop Calibration
Dial in the exact retract position during machine commissioning to prevent mechanical crashes and optimize tooling alignment.
Variable Positioning
Provide adjustable mechanical stops for assembly stations requiring flexible end-positions within a 40mm range.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-40S the Right Cylinder?
Select this 80mm bore when an application requires higher thrust than the 50mm option (982N push at 0.5MPa) but does not need the full output of a 100mm cylinder (3927N). The adjustable stroke is ideal for product changeovers on a line, letting operators dial in the exact 200-240mm end-stop mechanically. For fixed travel without rear adjustment, a standard SAI cylinder is sufficient.
When specifying an ISO 15552 replacement, match the 80mm bore, 240mm nominal stroke, -40mm adjuster, PT tapered port threads, and the -S magnet requirement. Because the nominal stroke is 240mm, ensure adequate external guiding to prevent excessive side-loading on the rod. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air, so consider a SAIL or BSAI cylinder for positive locking.
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 SAIJ80AX240-40S FAQ
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the effective travel by up to 40mm. This creates a usable stroke window of 200 to 240mm, enabling fine-tuning of the retract end-position without adding external stops.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.