Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-100 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 SAIJ80AX270-100
The AirTAC SAIJ80X270-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 170 to 270 mm. Delivering 2513 N of push force at 0.5 MPa, it handles demanding linear motion with precision. The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration omits the -S magnet.
This model uses an SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered port threads. The rear adjustment screw acts purely as a mechanical stop to fine-tune the end position without adding external stops. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-100 |
|---|---|
| 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 SAIJ80AX270-100
| 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 SAIJ80AX270-100 Is Used
Variable End-Stop Tuning
Dial in the exact end position during machine commissioning, trimming the 270 mm stroke back by up to 100 mm to perfect the operational stroke without external spacers.
Product Size Changeovers
Adapt a packaging line to different carton sizes by adjusting the rear stopper, shifting the effective travel window between 170 and 270 mm on the fly.
Corrosive Assembly Stations
Leverage the SUS420J2 stainless steel rod option to operate reliably in humid or lightly corrosive manufacturing environments while delivering 2513 N push force.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-100 the Right Cylinder?
Choose this 80 mm bore when you need higher thrust than a 63 mm cylinder (which provides 1559 N at 0.5 MPa) but want to avoid the bulk of a 100 mm unit. The 100 mm adjustment range is ideal for product changeovers, letting you dial back the 270 mm stroke by up to 100 mm without swapping hardware. Because the stroke is 270 mm, ensure adequate external guiding to prevent excessive side-loading on the 25 mm rod. The rear adjuster only sets the travel end and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. To match this ISO 15552 footprint, specify an 80 mm bore, 270 mm stroke, PT port threads, SUS420J2 rod, and no 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 SAIJ80AX270-100 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw lets you mechanically shorten the nominal 270 mm stroke by up to 100 mm, creating a usable travel window of 170 to 270 mm. It functions as a hard stop and does not lock the load without continuous air pressure.
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