Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX185-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 185mm 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
- Stroke185 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 SAIJ80BX185-75S
The AirTAC SAIJ80X185-75-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated -S magnet enables position sensing with CMSE reed or DMSE electronic switches.
This model provides a 110-185mm usable travel window, allowing you to trim the 185mm nominal stroke by up to 75mm. Built with a SUS304 stainless steel rod (code B) for corrosion resistance, it uses a PT tapered port thread. The rear screw acts purely as a travel stop for end-position tuning, not a load lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 185 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 SAIJ80BX185-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×185 | 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 SAIJ80BX185-75S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 110-185mm window during machine commissioning without adding external mechanical stops.
Product Changeover
Quickly adjust the stroke by up to 75mm to accommodate different product sizes on a packaging or handling line.
Corrosion-Resistant Actuation
Leverage the SUS304 stainless steel rod for reliable performance in environments requiring high corrosion resistance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-75S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (1559N at 0.5 MPa) but less than a 100mm bore (3927N). The 75mm adjustment range is ideal for machines requiring frequent product-size changeovers, letting you fine-tune the retract end-stop without swapping cylinders. For load-holding without live air pressure, select a SAIL or BSAI cylinder instead.
To match this ISO 15552 interchangeable cylinder, specify: 80mm bore, 185mm stroke, 75mm adjustment, PT G3/8 port, SUS304 rod, and the -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the 185mm stroke is under 300mm, side-load stress is moderate, but external guides are still recommended for heavy lateral 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 SAIJ80BX185-75S FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw allows you to reduce the 185mm nominal stroke by up to 75mm, creating a 110-185mm usable travel window. The adjuster functions as a mechanical stop for end-position tuning and does not lock the load.
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Covers non-human-caused product damage.
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