Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10 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 SAIJ80X275-10
The AirTAC SAIJ80X275-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 2513N of push thrust and 2268N of pull thrust at 0.5 MPa, utilizing a 25mm carbon steel rod with an M20x1.5 thread. By turning the external rear screw, you can trim the effective travel within a 265 to 275mm window, allowing precise end-position tuning during commissioning without adding bulky external stops.
This 80mm bore profile cylinder integrates variable air cushions at both ends to manage deceleration across its 30-800mm/s operating speed range. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic switches, though this specific configuration omits the internal magnet. The rear adjuster acts purely as a mechanical travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10 |
|---|---|
| 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 SAIJ80X275-10
| 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 SAIJ80X275-10 Is Used
Variable End-Stop Calibration
Dial in the exact 265-275mm travel window during machine commissioning to perfectly strike a workpiece, avoiding the need to machine custom external spacers.
Product-Size Changeovers
Quickly reposition the rear stopper on a conveyor line when switching to different package lengths, keeping the standard ISO 15552 footprint intact.
Deceleration Setup
Pair the 10mm stroke adjustment with the variable air cushions at both ends to fine-tune the end-of-stroke deceleration for a 80mm bore actuator.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-10 the Right Cylinder?
Choose this adjustable-stroke model when your equipment requires exact end-position calibration or frequent product-size changeovers, avoiding the downtime of physically swapping a fixed-stroke SAI cylinder. If your application requires less force, stepping down to a 63mm bore yields 1559N of push force at 0.5 MPa. For heavier loads, moving up to a 100mm bore provides 3927N.
This SKU is dimensionally interchangeable per ISO 15552 mounting interfaces. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR variants. The pneumatic porting uses a PT-tapered G3/8 thread. Because the 275mm stroke is substantial, the 25mm rod diameter and M20x1.5 thread will carry significant side loads, but an external guide rail is still recommended for unsupported heavy masses. For applications requiring true load-holding without continuous air supply, consider the SAIL or BSAI series, as the SAIJ adjuster is not a locking brake.
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 SAIJ80X275-10 FAQ
This 80mm bore cylinder provides 2513N of push force and 2268N of pull force at 0.5 MPa, reaching up to 4523N push at 0.9 MPa. It operates at a speed range of 30-800mm/s.
The rear external screw acts as a mechanical stopper that allows you to shorten the nominal 275mm stroke by up to 10mm, creating a usable travel window of 265-275mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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