Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-20 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 SAIJ80X165-20
The AirTAC SAIJ80X165-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 2513N of push force at 0.5MPa and provides a usable travel window of 145 to 165mm, letting you dial back the nominal stroke by up to 20mm during commissioning.
This 80mm bore actuator uses a PT tapered G3/8 port and a 25mm carbon steel rod with an M20x1.5 thread. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-20 |
|---|---|
| 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 SAIJ80X165-20
| 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 SAIJ80X165-20 Is Used
Changeover Adjustment
Dial in the exact 145 to 165mm end position during machine setup for varying product sizes without swapping actuators.
Assembly Pressing
Leverage the 2513N push force at 0.5MPa for pressing tasks while fine-tuning the travel limit to prevent over-travel.
Diversion Stops
Set precise retract stops on conveyor lines where the physical end position must be tweaked on the fly for different package lengths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X165-20 the Right Cylinder?
Choose this adjustable model over a fixed SAI when you need variable end-stops for product changeovers without adding external stops. If your thrust requirements are lower, stepping down to a 63mm bore yields 1559N at 0.5MPa. To replace an ISO 15552 cylinder, match the 80mm bore, 165mm stroke, 20mm adjust, PT G3/8 port, and mounting style.
Because the 165mm stroke is under 300mm, side-load risks are moderate, but long unsupported loads still need a guide. The rear adjuster acts as a travel stop for deceleration, not a lock; for load-holding without live air, use an external rod lock or pilot-operated check valve.
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 SAIJ80X165-20 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 20mm, creating a usable travel window of 145 to 165mm. It acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
At 0.5MPa operating pressure, the SAIJ80X165-20 provides 2513N of push force and 2268N of pull force. It operates at speeds of 30 to 800mm/s.
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