Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-100 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 SAIJ80X275-100
The AirTAC SAIJ80X275-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 275 mm stroke that can be dialed back by up to 100 mm, giving you a usable travel window of 175-275 mm for precise end-position tuning during commissioning. Operating at 0.7 MPa, it delivers a push force of 3518 N and a pull force of 2268 N.
This extruded aluminum barrel design includes sensor grooves on both sides for CMSE reed and DMSE electronic switches, though this specific SKU is configured without a magnet. The robust 25 mm carbon steel rod and M20x1.5 thread handle high side loads effectively, while the adjustable stopper allows rapid product changeovers without swapping the entire cylinder.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-100 |
|---|---|
| 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 SAIJ80X275-100
| 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 SAIJ80X275-100 Is Used
Variable End-Stop Tuning
Dial the rear adjuster back by up to 100 mm to rapidly change the extended end-position without replacing the cylinder or adding external mechanical stops.
Machine Changeover
Adapt a 275 mm stroke actuator to multiple product sizes on the same line by shifting the usable travel window between 175 and 275 mm during setup.
Assembly Press Positioning
Leverage the 3518 N push force at 0.7 MPa to seat components accurately, using the fine adjustment screw to control the exact seating depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X275-100 the Right Cylinder?
Choose this 80 mm bore when the 50 mm class (1374 N push at 0.7 MPa) is insufficient, but the 100 mm class (5497 N) would be physically oversized. The 100 mm adjustment range is ideal for machinery requiring extreme flexibility in end-stops across varying product sizes. For strokes of 275 mm or longer, always use an external guide to support the load and prevent rod bending. The rear adjuster acts purely as a travel stop and does not hold the load without live air; for true load-holding, select the SAIL or BSAI series. This model uses a PT tapered port and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ80X275-100 FAQ
At a 0.7 MPa operating pressure, this 80 mm bore cylinder provides a push force of 3518 N and a pull force of 2268 N. It can deliver a maximum push force of 4523 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel from the nominal 275 mm down to 175 mm. This creates a 175-275 mm adjustable window for fine-tuning the retract end position at commissioning without altering the ISO 15552 mounting footprint.
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