Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX185-30 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 SAIJ80BX185-30
The AirTAC SAIJ80X185-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. This built-in adjustability allows precise end-position tuning during commissioning without swapping hardware.
Built with a SUS304 stainless steel rod for superior corrosion resistance, this model utilizes PT tapered port threads (G3/8) and operates at speeds of 30-800mm/s. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Note that the rear adjuster acts strictly as a travel stop and does not hold the load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-30 |
|---|---|
| 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 SAIJ80BX185-30
| 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 SAIJ80BX185-30 Is Used
Product Changeover
Dial in the 155-185mm travel window during format changeovers to accommodate varying package sizes without adding external stops.
Machine Setup
Fine-tune the exact end-of-stroke position at commissioning using the rear adjuster, preventing hard mechanical crashes.
Variable End Stops
Adjust the retract position on the fly for sorting or diverting tasks that require shifting physical stop locations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-30 the Right Cylinder?
If your force requirements are lower, stepping down to a 63mm bore provides 1559N, while moving up to a 100mm bore yields 3927N. The adjustable stroke is ideal for fine-tuning at machine setup, whereas a fixed SAI cylinder is preferred for repeatable, single-stroke tasks.
For a direct ISO 15552 replacement match, ensure you specify the 80mm bore, 185mm stroke, 30mm adjustment, PT port thread, and the SUS304 rod material. Because this unit lacks a magnet, it cannot host CMSE or DMSE sensors without modification. Remember that the rear stopper only decelerates the stroke end; for true load-holding without live air, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ80BX185-30 FAQ
At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the 185mm nominal stroke by up to 30mm, creating a usable travel window of 155-185mm. This stopper sets the end position but does not lock the load without live air.
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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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