Airtac SAIJ80 Adjustable Cylinder SAIJ80BX165-40S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX165-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 165mm 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
- Stroke165 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 SAIJ80BX165-40S
The AirTAC SAIJ80X165-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 165 mm travel by up to 40 mm, creating a precise 125-165 mm usable window.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during product changeovers. It uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear screw acts purely as a travel stop to fine-tune the retract end position, meaning it will not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX165-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX165-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 165 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 SAIJ80BX165-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×165 | 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 SAIJ80BX165-40S Is Used
Product Changeover
Dial in the 125-165 mm retract distance instantly when switching the line to a different package size, avoiding mechanical retooling.
End-Stop Calibration
Fine-tune the final end position during machine commissioning to achieve exact placement without adding external physical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX165-40S the Right Cylinder?
The adjustable 125-165 mm window is ideal for machines that process varying product sizes, allowing operators to set the exact retract end-position at commissioning rather than ordering a custom fixed-stroke SAI cylinder.
For a true ISO 15552 replacement match, verify the 80 mm bore, 165 mm stroke, 40 mm adjustment, PT tapered port threads, preferred mounting style, and the -S magnet. Because the stroke is under 300 mm, side-load stress on the 25 mm rod is manageable, though long unsupported loads still require an external guide. If your machine needs to hold position without continuous air pressure, use an external rod lock or select an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ80BX165-40S FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw lets you shorten the 165 mm nominal stroke by up to 40 mm, providing a usable travel window of 125 to 165 mm. It functions as a physical stop for end-position tuning and does not lock the load without live air.
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Genuine AirTAC parts produced by AirTAC factory.
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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