Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30 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 SAIJ80X165-30
The AirTAC SAIJ80X165-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 135-165 mm usable travel window. Delivering 2513 N of push force at 0.5 MPa, it uses a 25 mm carbon steel rod and G3/8 PT ports. The external stopper allows you to dial in the exact retract position during commissioning without adding external stops.
This adjustable-stroke design relies on the rear screw as a travel stop, not a load-holding lock, meaning live air is required to maintain position. It supports AirTAC CMSE reed and DMSE electronic sensors via dual-side barrel grooves, and uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) omitting FB and CA options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30 |
|---|---|
| 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 SAIJ80X165-30
| 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 SAIJ80X165-30 Is Used
Product Changeovers
Quickly dial in the 135-165 mm retract position during production line size changes without swapping out the entire cylinder assembly.
End-Position Tuning
Fine-tune the exact end-of-stroke stop during machine commissioning to absorb mechanical tolerances and achieve precise positioning.
Variable End Stops
Set custom travel limits on packaging or clamping fixtures where the effective stroke needs to be adjusted for different material thicknesses.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-30 the Right Cylinder?
Choose this 80 mm bore when an application requires the 2513 N push force at 0.5 MPa and demands precise variable end-stops, stepping up from a 63 mm bore that provides 1559 N. The 30 mm adjustment window is ideal for product-size changeovers on a line, whereas a fixed SAI cylinder cannot be fine-tuned in place. Because the 165 mm stroke is under the 300 mm side-load threshold, the robust 25 mm rod handles standard loads well, though heavy lateral forces still require an external guide.
For exact ISO 15552 interchangeability, match the 80 mm bore, 165 mm stroke, 30 mm adjustment, G3/8 PT ports, and the specified mounting set. Note that the SAIJ rear adjuster only sets the travel end and decelerates the load; it does not function as a brake. For true load-holding without live air pressure, select an AirTAC SAIL or BSAI series 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 SAIJ80X165-30 FAQ
The rear adjuster acts as a mechanical stop that trims the effective travel back by up to 30 mm, creating a 135-165 mm usable stroke window. It sets the end position and decelerates the load, but it does not hold the load without live air pressure.
This 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force at 0.5 MPa. At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf of push force.
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