Airtac SAIJ80 Adjustable Cylinder SAIJ80BX65-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX65-10S 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 SAIJ80BX65-10S
The AirTAC SAIJ80X65-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 65 mm stroke by up to 10 mm for a precise 55-65 mm usable travel window. Delivering 2513 N of push force at 0.5 MPa, it is built for applications requiring exact end-position tuning during commissioning without swapping out components. This unit features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors.
It utilizes PT tapered port threads sized at G3/8 and relies on variable air cushions at both ends to decelerate the moving load. The rear adjuster functions strictly as a mechanical stop to set the travel end, not as a lock, meaning it will not hold a load without live air pressure. For operations requiring true load-holding without continuous pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX65-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX65-10S |
|---|---|
| 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 SAIJ80BX65-10S
| 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 SAIJ80BX65-10S Is Used
Machine Setup Calibration
Dial in the exact 55-65 mm travel window during commissioning to perfect end-position timing without adding external stops.
Product Changeover
Quickly adjust the retract end-position by up to 10 mm when switching between different product sizes on the same line.
Variable End-Stop Assembly
Fine-tune the stroke on automated assembly stations to accommodate minor variations in incoming part dimensions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX65-10S the Right Cylinder?
Select this 80 mm bore model when your machine setup requires variable end-stops or frequent product-size changeovers, stepping up from a 63 mm bore that provides 1559 N of push force at 0.5 MPa. The adjustable stroke is chosen over a fixed SAI cylinder when you need fine end-position tuning on the fly. The 25 mm piston rod and M20x1.5 thread provide robust side-load capacity, though any long unsupported stroke still requires an external guide.
When matching ISO 15552 interchangeable replacements, verify the 80 mm bore, 65 mm stroke, 10 mm adjustment range, PT G3/8 ports, and the -S magnet option. This cylinder uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR mounts.
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 SAIJ80BX65-10S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 65 mm nominal stroke by up to 10 mm, creating a 55-65 mm usable travel window. It is a travel stop and does not lock or hold the load without live air pressure.
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