Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-50 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 SAIJ80X165-50
The AirTAC SAIJ80X165-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 165 mm nominal travel to a usable window of 115-165 mm. It delivers a robust 2513 N push force at 0.5 MPa, making it well-suited for heavy positioning tasks. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This model uses a PT tapered port thread and a 25 mm carbon steel rod with an M20x1.5 thread, providing high rigidity against side loads. The rear adjuster acts purely as a mechanical stop for end-position tuning; it does not lock the load without live air pressure, so a SAIL or BSAI variant is required for fail-safe holding.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-50 |
|---|---|
| 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 SAIJ80X165-50
| 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 SAIJ80X165-50 Is Used
Product Changeovers
Dial in the 115-165 mm travel window during format size shifts on packaging machinery without changing out the physical cylinder.
End-Position Tuning
Fine-tune the retract stop during machine commissioning to absorb mechanical tolerances and achieve precise end-of-stroke positioning.
Heavy Assembly Presses
Leverage the 2513 N push force at 0.5 MPa to seat heavy components, using the adjustable stop to vary the pressing depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-50 the Right Cylinder?
Choose this 80 mm bore when your application requires more thrust than a 63 mm cylinder provides (1559 N at 0.5 MPa) but does not need the full 3927 N output of a 100 mm unit. The 50 mm adjustment range is ideal for product-size changeovers on a packaging line, letting operators fine-tune the retract end position without swapping hardware or adding external stops. For fixed travel setups without the need for commissioning adjustments, the standard SAI cylinder is a simpler alternative.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 165 mm stroke, 50 mm adjustment range, PT G3/8 port, and mounting choice from the SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Because the stroke is under 300 mm, side-load stress is moderate, but long unsupported loads should still use an external guide.
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 SAIJ80X165-50 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. It can deliver up to 4523 N of push force at its maximum 0.9 MPa pressure.
The rear adjuster screw lets you mechanically shorten the 165 mm nominal stroke by up to 50 mm, providing a usable travel range of 115 to 165 mm. The adjuster functions only as a travel stop for tuning and does not hold the load without continuous air pressure.
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