Airtac SAIJ80 Adjustable Cylinder SAIJ80BX270-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX270-100S 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 SAIJ80BX270-100S
The AirTAC SAIJ80X270-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 170 to 270 mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection mounting.
This specific SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The rear adjustment screw functions purely as a travel stop to decelerate the piston, not as a lock. For applications requiring position holding without live air pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX270-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX270-100S |
|---|---|
| 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 SAIJ80BX270-100S
| 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 SAIJ80BX270-100S Is Used
Product Changeover Adjustment
Dial in the 170 to 270 mm travel window during format size changes on a packaging line without physically replacing the actuator.
Machine Setup Tuning
Fine-tune the exact retract end-position during commissioning to perfect a press or clamping operation, avoiding the need for external stopper blocks.
Variable End Stops
Accommodate multiple part sizes on a single conveyor system by adjusting the rear stopper screw up to 100 mm to alter the effective stroke.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX270-100S the Right Cylinder?
The 100 mm adjustment range is ideal for product changeovers on a line, allowing you to fine-tune the end position without swapping the cylinder or adding external stops. Since the 270 mm stroke exceeds 300 mm when combined with the 25 mm rod diameter, an external guide is recommended to prevent excessive side-loading on the rod.
To replace an ISO 15552 cylinder, match the 80 mm bore, 270 mm stroke, 100 mm adjustment, PT G3/8 port, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The -S magnet works with AirTAC CMSE reed switches and DMSE solid-state sensors.
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 SAIJ80BX270-100S FAQ
The maximum push force at 1.0 MPa is 513 kgf.
The rear adjuster screw allows you to shorten the nominal 270 mm stroke by up to 100 mm, creating a usable travel window of 170 to 270 mm. The adjuster acts as a mechanical stop to set the end position and does not lock or hold the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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