Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10S
The AirTAC SAIJ80X275-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 275 mm stroke by up to 10 mm. This creates a 265-275 mm usable travel window, giving you exact control over the retract end position during machine setup without needing external stops. In the 80 mm bore class, it delivers a robust 3518 N push force at 0.7 MPa, making it well-suited for heavier actuation tasks.
This variant includes a standard magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, which seat neatly into the extruded aluminum barrel's dual sensor grooves. The carbon steel piston rod features an M20x1.5 thread, and because the rod diameter is substantial, it handles higher side loads well, though a 275 mm stroke still benefits from an external guide. It uses a PT tapered G3/8 port and relies on variable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAIJ80X275-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SAIJ80X275-10S Is Used
Machine Setup Tuning
Dial in the exact 265-275 mm retract position during commissioning to align tooling perfectly without machining custom spacers.
Product Changeover
Quickly adjust the end-stop distance on a packaging line when switching to a slightly shorter product format.
Heavy Actuation
Leverage the 3518 N push force at 0.7 MPa to move heavy pallets or fixtures, using the rear screw to fine-tune the resting position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10S the Right Cylinder?
Choose this 80 mm bore over the smaller 63 mm option (which provides 2182 N push at 0.5 MPa) when your application requires significantly higher thrust. The adjustable stroke is ideal for product changeovers or fine-tuning the end position at commissioning, which is often faster and more precise than swapping out a fixed-stroke SAI cylinder. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without continuous pressure, consider the SAIL or BSAI series. This SAIJ model is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80X275-10S FAQ
At 0.7 MPa, this 80 mm bore cylinder provides a push force of 3518 N and a pull force of 2268 N. It can deliver up to 4523 N push force at 0.9 MPa.
The rear adjuster screw lets you shorten the 275 mm nominal stroke by up to 10 mm, creating a 265-275 mm travel window. This allows precise end-position tuning at commissioning without swapping the cylinder.
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