Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX140-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 140mm 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
- Stroke140 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 SAIJ80BX140-75
The AirTAC SAIJ80X140-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 75 mm. This creates a highly flexible 65 to 140 mm usable window, letting you dial in the exact retract position at commissioning without swapping out the barrel or bolting on external stops.
This SKU uses a SUS304 stainless steel rod for superior corrosion resistance and ships with PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic sensors. Remember that the rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure; for true load-holding, explore the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 140 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 SAIJ80BX140-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×140 | 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 SAIJ80BX140-75 Is Used
Machine Changeover
Dial in the 65-140 mm retract position during product size transitions without replacing the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the exact end-of-stroke point at commissioning to absorb minor mechanical tolerances in your fixture layout using the rear adjuster.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-75 the Right Cylinder?
If you need less force, stepping down to a 63 mm bore yields 1559 N. The 75 mm adjustment range is particularly useful for product-size changeovers on a packaging line, giving you a wide 65-140 mm window to set variable end stops without installing a completely new cylinder.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints but uses a reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. This specific configuration includes a SUS304 stainless steel rod, PT tapered ports, and no magnet. Because the stroke is 140 mm, side-load risks are moderate, but always ensure proper external guiding for heavy loads.
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 SAIJ80BX140-75 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the 140 mm nominal stroke by up to 75 mm, providing a usable travel window of 65 to 140 mm. It sets the travel end but does not lock or hold the load without live air pressure.
At the maximum operating pressure of 1.0 MPa, the push force reaches 5026 N.
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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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