Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10 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 SAIJ80X270-10
The AirTAC SAIJ80X270-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 260 to 270 mm, allowing you to trim the effective stroke by up to 10 mm during commissioning. Delivering 2513 N of push force at 0.5 MPa, it handles substantial pneumatic workloads.
This model uses a 25 mm carbon steel rod with an M20x1.5 thread, offering high rigidity against side loading. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2 options. The rear adjuster acts purely as a mechanical stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10 |
|---|---|
| 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 SAIJ80X270-10
| 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 SAIJ80X270-10 Is Used
Machine Changeover
Dial in the exact 260-270 mm end-stop during product size changes without installing external physical stops.
Assembly Positioning
Provides 2513 N of thrust at 0.5 MPa to seat components, with a 10 mm trim window for final alignment.
Material Routing
Adjusts the stroke length on the fly to accommodate varying package sizes on a single pneumatic diverter.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10 the Right Cylinder?
Choose this 80 mm bore when a 63 mm bore (providing 1559 N push at 0.5 MPa) is insufficient, but a 100 mm bore (3927 N) is oversized. The adjustable stroke is ideal for product changeovers where the exact end-of-travel position needs fine-tuning without swapping out a fixed-stroke SAI cylinder. Because the 270 mm stroke is relatively long, an external guide is recommended to prevent rod deflection. For load-holding without continuous air pressure, use a SAIL or BSAI cylinder instead. This SKU features PT tapered ports and no sensor 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 SAIJ80X270-10 FAQ
At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa the push force increases to 3518 N.
The nominal stroke is 270 mm. The rear adjuster screw lets you shorten the effective travel by up to 10 mm, creating a usable 260-270 mm window for fine-tuning the end position.
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