Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX275-100S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-100S
The AirTAC SAIJ80X275-100-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, engineered for applications requiring flexible end-position tuning. The 100mm adjustment mechanism allows you to trim the 275mm nominal stroke back, providing a precise 175-275mm usable travel window without changing the cylinder body.
Because this SKU includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE solid-state sensors housed within the dual-side barrel grooves. The rear stopper functions purely as a travel limiter for commissioning and product changeovers, meaning it does not hold the load without live air pressure. For true load-holding requirements, an external rod lock or a SAIL cylinder is required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-100S |
|---|---|
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-100S
| 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 SAIJ80BX275-100S Is Used
Product Changeovers
Dial the rear stopper back by up to 100mm to instantly accommodate new package sizes on a packaging line without physically swapping cylinders.
End-Position Tuning
Fine-tune the 175-275mm travel window during machine commissioning to achieve exact positioning without fabricating custom external stop blocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX275-100S the Right Cylinder?
The 100mm adjustment range is ideal for machines that frequently process varying product sizes, allowing you to dial in the end-stop perfectly rather than swapping out a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 80mm bore, 275mm stroke, PT ports, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interfaces. Since the 275mm stroke exceeds 300mm when fully extended with standard mounts, ensure an external guide is used to manage side-load and protect the 25mm rod thread from deflection.
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 SAIJ80BX275-100S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the 275mm nominal stroke by up to 100mm, creating a usable travel window of 175-275mm. It is a travel limiter, not a load lock.
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