Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-40S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX180-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 180mm 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
- Stroke180 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 SAIJ80AX180-40S
The AirTAC SAIJ80X180-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 180 mm travel back by up to 40 mm, yielding a usable 140-180 mm end-position window. The integrated -S magnet enables precise position detection via AirTAC CMSE reed or DMSE solid-state sensors housed in the dual-side barrel grooves.
Because the rear screw acts purely as a mechanical travel stop to fine-tune deceleration and end limits at commissioning, it does not lock the load without live air. For applications requiring position holding without pneumatic pressure, you should specify an external rod lock or select the SAIL or BSAI series instead. This SAIJ model supports a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 180 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 SAIJ80AX180-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×180 | 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 SAIJ80AX180-40S Is Used
Product Changeover
Dial in the 140-180 mm travel window during line format changes to accommodate different carton or part sizes without physically replacing the actuator.
End-Stop Calibration
Fine-tune the exact retract position during commissioning using the rear screw, allowing perfect alignment of heavy 80 mm tooling without adding external stoppers.
Machining Clamps
Securely hold workpieces by adjusting the stroke back by up to 40 mm to compensate for varying raw material thicknesses while delivering 2268 N of pull force.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-40S the Right Cylinder?
The 40 mm adjustment range is specifically valuable for machine setups requiring variable end-stops during product changeovers, eliminating the need to swap cylinders or bolt on external stops. The PT tapered G3/8 port and M20x1.5 rod thread match standard ISO 15552 footprint dimensions. Since the 180 mm stroke is under the 300 mm threshold, side-load risks are moderate, but the 25 mm rod diameter still handles lateral stress better than smaller bores. Remember that the rear adjuster only sets the travel end and does not function as a brake.
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 SAIJ80AX180-40S FAQ
At 0.9 MPa, the push force increases to 4523 N.
The rear adjuster screw allows you to shorten the effective stroke from its 180 mm nominal length by up to 40 mm, creating a usable travel window of 140 to 180 mm for precise end-position tuning.
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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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