Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10S
The AirTAC SAIJ80X270-10-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 2513N of push force at 0.5 MPa and provides a usable travel window of 260 to 270 mm, allowing you to dial back the nominal 270 mm stroke by up to 10 mm during machine commissioning. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant includes a magnet for position detection.
Equipped with a SUS420J2 stainless steel rod (option A) and PT tapered ports, it handles standard pneumatic loads while offering improved rod corrosion resistance. The 25 mm rod diameter and M20x1.5 thread provide robust side-load tolerance, though an external guide is still recommended for this 270 mm stroke. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 270 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 SAIJ80AX270-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×270 | 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 SAIJ80AX270-10S Is Used
End-Position Tuning
Dial in the exact 260 to 270 mm travel distance during machine commissioning to perfect a pressing or clamping operation without adding external stops.
Product Changeover
Quickly adjust the retract end-position by up to 10 mm on automated lines when switching to a slightly different product size.
Assembly Line Actuation
Provide reliable linear motion with 2513N push force at 0.5 MPa, using the SUS420J2 rod to resist moisture in varied manufacturing environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10S the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI when you need fine end-position tuning at setup or during product changeover without swapping hardware. Because the 270 mm stroke exceeds 250 mm, ensure adequate external guiding to prevent excessive side-load wear on the rod bearing. The rear adjuster screw acts purely as a mechanical stop for deceleration and cannot hold a load without live air pressure; for true fail-safe load holding, select the SAIL or BSAI series instead. To match this ISO 15552 footprint exactly, specify the 80 mm bore, 270 mm stroke, 10 mm adjustment, G3/8 port, PT thread type, and -S magnet.
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 SAIJ80AX270-10S FAQ
The rear adjuster screw lets you shorten the effective travel from 270 mm down to 260 mm. It acts as a mechanical stop to set the end position and works with the air cushion for deceleration, but it does not lock the load without live air pressure.
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513N of push force and 2268N of pull force. It operates at speeds between 30 and 800 mm/s and uses a G3/8 port.
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