Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 65mm 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
- Stroke65 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-50
The AirTAC SAIJ80X65-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 65 mm travel by up to 50 mm. This creates a highly versatile 15-65 mm usable travel window, perfect for dialing in exact end positions during machine commissioning without swapping hardware. Delivering 2513 N of push force at 0.5 MPa, it handles robust actuation tasks with precision.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic sensors, and it uses a G3/8 port for pneumatic supply. The rear adjuster acts purely as a mechanical stop to set the retract position, so it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 65 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 SAIJ80AX65-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×65 | 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 SAIJ80AX65-50 Is Used
Machine Changeover
Quickly adapt the retract distance during product size changes on a packaging line by dialing the rear stopper between 15 and 65 mm, avoiding physical hardware swaps.
End-Position Tuning
Fine-tune the exact retract endpoint during machine commissioning to perfect a pressing or clamping operation, leveraging the 25 mm rod and M20x1.5 thread for stability.
Variable End Stops
Use the 50 mm adjustment range to test multiple travel distances on a new fixture setup before locking in the final mechanical position, saving engineering time.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-50 the Right Cylinder?
Choose this 80 mm bore if your application requires the 2513 N push force (at 0.5 MPa) of a large cylinder but needs precise end-position tuning over a 15-65 mm window; if you need more force, stepping up to the 100 mm bore yields 3927 N, while dropping to a 63 mm bore provides 1559 N. An adjustable stroke is ideal for product changeovers on a line, letting you fine-tune the retract stop on the fly instead of adding external physical stops or buying a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 65 mm nominal stroke, 50 mm adjustment code, PT tapered port thread, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2—note the omission of FB, CA, CB, and CR). Because this unit lacks a magnet, it cannot host position sensors without a -S variant. Remember that the rear adjuster is a travel stop, not a lock; for load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ80AX65-50 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 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 operating pressure.
The rear adjuster screw lets you mechanically shorten the 65 mm nominal stroke by up to 50 mm, creating a usable travel window of 15 to 65 mm. It functions as a physical stop to set the retract position and does not lock or hold the load without continuous air pressure.
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