Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX185-100 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 SAIJ80BX185-100
Its standout feature is the 100mm adjustment range, which creates an 85-185mm usable travel window. This allows you to dial in the exact end position during commissioning without swapping out the entire actuator.
Built with a SUS304 stainless steel rod (option B), this unit handles demanding environments while utilizing a PT tapered port thread. The rear stopper screw sets the retract position but does not lock the load; for position holding without live air pressure, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100 |
|---|---|
| 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 SAIJ80BX185-100
| 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 SAIJ80BX185-100 Is Used
Variable End-Stop Positioning
Dial in the retract stroke anywhere from 85mm to 185mm to accommodate multiple product sizes on a single conveyor line without adding external mechanical stops.
Commissioning Fine-Tuning
Precisely trim the final 100mm of travel during machine setup to perfect the seating pressure of a 2513N press operation, avoiding costly machining of hard stops.
Rapid Format Changeovers
Quickly adjust the effective stroke when switching manufacturing fixtures, leveraging the ISO 15552 footprint to maintain alignment across different tooling widths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-100 the Right Cylinder?
If your setup needs less force, stepping down to a 63mm bore provides 1559N. The 100mm adjustment window is ideal for product-size changeovers on a packaging line, whereas a fixed-stroke SAI is better for dedicated single-purpose stations. To match this cylinder for an ISO 15552 replacement, verify the 185mm stroke, 100mm adjuster, PT port thread, and the specific mounting bracket.
Because the 185mm stroke approaches the mid-range of standard lengths, ensure the 25mm rod diameter and M20x1.5 rod thread are adequately supported. Although the robust rod handles side loads well, always use an external guide rail to prevent premature seal wear on moving assemblies.
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 SAIJ80BX185-100 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 100mm. This creates an adjustable travel window from 85mm to 185mm, allowing you to fine-tune the end position without changing the cylinder.
At 0.7 MPa, the push force increases to 3518N.
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