Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-75S
The AirTAC SAIJ80X280-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 2513N of push force at 0.5MPa and features a 205 to 280mm usable travel window, letting you dial back the nominal 280mm stroke by up to 75mm during commissioning. This built-in adjustability eliminates the need to swap cylinders or bolt on external stoppers when fine-tuning machine end positions.
This bore 80 unit features a robust 25mm carbon steel piston rod with an M20x1.5 thread, providing excellent resistance against side loads. The extruded aluminum barrel includes sensor grooves on both sides, and because this is the -S variant, it contains a magnet ready for AirTAC CMSE reed and DMSE electronic solid-state switches. It uses a PT tapered G3/8 port and relies on adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 280 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 SAIJ80X280-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×280 | 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 SAIJ80X280-75S Is Used
Product Changeover
Leverage the 75mm adjustment window to rapidly reconfigure retract end positions for different product sizes on a packaging line without changing the cylinder.
Machine Setup
Fine-tune the 280mm stroke during initial commissioning to achieve precise end-positioning without adding costly external mechanical stops.
Material Handling
Utilize the 2513N push force at 0.5MPa to move heavy pallets, using the adjustable end-stop to accommodate varying package dimensions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-75S the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than a 63mm cylinder (which provides 1559N push at 0.5MPa) but without the physical size of a 100mm bore. The 75mm adjustment range is ideal for product-size changeovers on a line, allowing operators to set new retract endpoints rapidly. When replacing an ISO 15552 cylinder, match the 80mm bore, 280mm stroke, G3/8 PT port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Because the 280mm stroke is substantial, ensure adequate external guiding to prevent excessive side-loading on the rod. Remember that the rear adjuster and air cushions act only as travel stops and deceleration devices; they do not hold the load without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock.
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 SAIJ80X280-75S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 75mm, providing a usable travel window of 205 to 280mm. It sets the retract end position but does not lock the load without continuous air pressure.
At 0.5MPa operating pressure, it provides 2513N of push force and 2268N of pull force. At 0.7MPa, the push force increases to 3518N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.