Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke165 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30S
The AirTAC SAIJ80X165-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa, featuring a 25mm carbon steel rod and G3/8 PT tapered ports. The built-in magnet enables position sensing with CMSE reed or DMSE electronic switches.
This model provides a usable travel window of 135-165mm, letting you dial back the nominal 165mm stroke by up to 30mm. The rear stopper screw allows fine end-position tuning at commissioning without swapping the cylinder or adding external stops. It retains the standard extruded aluminum barrel with dual sensor grooves, while omitting FB, CA, CB, and CR mountings.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30S |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30S
| 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 SAIJ80X165-30S Is Used
Product Changeovers
Dial in the exact 135-165mm end position during format size changes on a packaging line without swapping hardware.
Machine Setup
Fine-tune the retract stop during commissioning to perfect tooling alignment, avoiding the need for external shims.
Variable End Stops
Adjust the stroke on the fly for diverter gates that must handle multiple package lengths on a single conveyor.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (which provides 1559N push at 0.5 MPa) but does not need the full 3927N output of a 100mm unit. The adjustable stroke is ideal for product-size changeovers on a line, offering a variable end-stop instead of a fixed SAI cylinder. To replace an ISO 15552 cylinder, match the 80mm bore, 165mm stroke, 30mm adjustment, G3/8 PT ports, and -S magnet.
Because the stroke is 165mm, external guides are recommended to manage side loads on the 25mm rod. Remember that the rear adjuster is a travel stop, not a lock; the SAIJ80X165-30-S will not hold a load without live air. For pilot-operated load holding, consider the SAIL or BSAI series 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 SAIJ80X165-30S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 165mm nominal stroke down to 135mm. It sets the end position but does not lock the load without live air pressure.
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