Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX280-100S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke280 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 SAIJ80BX280-100S
The AirTAC SAIJ80X280-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 100 mm. This creates a highly flexible 180-280 mm usable window, letting you dial in the exact retract end-position at commissioning without swapping out the actuator or bolting on external stops.
Because this is an 80 mm bore actuator with a 280 mm stroke, the 25 mm rod and M20x1.5 thread provide robust support, though an external guide is recommended for the load given the extended travel. The integrated -S magnet works directly with AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves. Remember that the rear stopper and air cushions decelerate the stroke but do not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-100S |
|---|---|
| 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 | 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 SAIJ80BX280-100S
| 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 SAIJ80BX280-100S Is Used
Variable End-Stop Tuning
Fine-tune the retract distance within the 180-280 mm window during machine commissioning to achieve precise positioning without machining custom spacers.
Product-Size Changeovers
Quickly adapt packaging or handling lines to different product lengths by dialing the rear adjuster up to 100 mm instead of replacing the entire cylinder.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-100S the Right Cylinder?
The 100 mm adjustment range is perfect for product-size changeovers on a line, allowing you to reconfigure the retract distance on the fly rather than machining new hard stops. For applications requiring the load to be held mechanically without continuous air pressure, consider the SAIL or BSAI series, as the SAIJ adjuster is strictly a travel stop.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 80 mm bore, 280 mm nominal stroke, 100 mm adjuster, PT tapered port threads, and the -S magnet option. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the stroke is 280 mm, ensure adequate external guiding to prevent excessive side-loading on the rod.
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 SAIJ80BX280-100S FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as an external stopper, allowing you to shorten the 280 mm nominal stroke by up to 100 mm. This provides an effective travel window of 180-280 mm, which can be fine-tuned during setup, though it does not mechanically lock the load.
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