Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10S 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 SAIJ80X270-10S
The AirTAC SAIJ80X270-10-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 carbon steel rod and G3/8 PT ports. The integrated -S magnet enables seamless position detection with AirTAC CMSE reed or DMSE electronic solid-state sensors.
Featuring a 270mm nominal stroke, the external rear stopper provides a 10mm trim range, yielding a precise 260-270mm usable travel window. This allows you to dial in the retract end-position during commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and mounting is supported via Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10S |
|---|---|
| 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 SAIJ80X270-10S
| 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 SAIJ80X270-10S Is Used
Precision End-Stop Tuning
Dial in the exact retract position within a 260-270mm window during machine commissioning without swapping out the entire actuator.
Product Size Changeover
Quickly adjust the stroke end by up to 10mm on packaging lines when processing different product lengths.
High-Force Clamping
Leverage 2513N of push force at 0.5MPa to securely clamp heavy workpieces while fine-tuning the clamping depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X270-10S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (1559N at 0.5MPa) but without the bulk of a 100mm unit (3927N). The adjustable 260-270mm travel window is perfect for setups needing exact retract positioning during product changeovers. Because the stroke is 270mm, ensure adequate external guiding to prevent excessive side-loading on the 25mm rod.
This cylinder includes a magnet for CMSE and DMSE switches. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. To match this ISO 15552 interchangeable cylinder, specify: 80mm bore, 270mm stroke, 10mm adjustment, PT G3/8 port, and a -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 SAIJ80X270-10S FAQ
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. It can reach up to 4523N push force at 0.9MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 270mm nominal stroke by up to 10mm. This creates a 260-270mm usable travel window for fine-tuning the end position without moving the cylinder mounts.
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