Airtac SAIJ80 Adjustable Cylinder SAIJ80BX270-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX270-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 270mm 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
- Stroke270 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 SAIJ80BX270-75
The AirTAC SAIJ80X270-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the effective travel back by up to 75 mm. This creates a highly flexible 195-270 mm usable stroke window, letting you dial in the exact retract position at commissioning without swapping out the actuator or adding external stops. Built with a SUS304 stainless steel rod, it handles demanding environments while delivering robust thrust.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Because this is a 270 mm stroke unit, the 25 mm diameter rod and M20x1.5 rod thread provide rigidity, but an external guide should still be used to prevent excessive side-loading on long extensions.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX270-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX270-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 270 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 SAIJ80BX270-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×270 | 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 SAIJ80BX270-75 Is Used
Product Changeovers
Quickly adjust the 195-270 mm travel window to accommodate varying package sizes on a packaging line without replacing the cylinder.
Machine Setup
Fine-tune the retract end-position during initial commissioning to achieve precise alignment without machining custom external spacers.
Variable End Stops
Provides an adjustable physical stop for diverting or positioning items of different dimensions along a material handling conveyor.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX270-75 the Right Cylinder?
The 75 mm adjustment range is ideal for machinery requiring frequent product-size changeovers, as it allows operators to set new retract end-stops on the fly instead of machining new hard stops.
For an exact ISO 15552 replacement, match the 80 mm bore, 270 mm stroke, PT tapered port threads, and your required mounting style. Supported mounts include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air; for true pneumatic locking, consider the SAIL or BSAI series.
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 SAIJ80BX270-75 FAQ
At 0.9 MPa, the push force increases to 4523 N.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 270 mm stroke by up to 75 mm, providing an effective travel range of 195 to 270 mm. It only sets the end position and does not lock the load without continuous air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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