Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 260mm 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
- Stroke260 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-50S
The AirTAC SAIJ80X260-50-S is a double-acting ISO 15552 profile cylinder with a single rod and a rear stroke adjuster. It provides a usable travel window of 210 to 260 mm, allowing you to dial back the end position by up to 50 mm during commissioning without swapping the unit. In the 80 mm bore class, it delivers 2513 N of push force at 0.5 MPa and reaches a maximum of 513 kgf at 1.0 MPa.
This version includes a standard magnet for position sensing and uses a carbon steel rod with an M20x1.5 thread. The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. It supports PT tapered ports sized G3/8 and uses the SAIJ mounting set, which includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 260 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 SAIJ80X260-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×260 | 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 SAIJ80X260-50S Is Used
Machine Changeover
Dial in the 210-260 mm travel window during product size changes on a packaging line without physically replacing the cylinder or adding external stopper blocks.
End-Stop Tuning
Fine-tune the exact retract position during initial commissioning to perfect a pressing or clamping operation, absorbing mechanical tolerances directly at the rear screw.
Variable Position Diverter
Adjust the stroke length on the fly for a diverter arm on a conveyor handling mixed-size cartons, ensuring precise routing without reprogramming fixed stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-50S the Right Cylinder?
Choose this adjustable model when you need variable end stops for product changeovers rather than a fixed-stroke SAI cylinder. The 50 mm adjustment window lets you fine-tune the retract position on the fly. If your application requires less force, stepping down to a 63 mm bore yields 1559 N push at 0.5 MPa; stepping up to a 100 mm bore provides 3927 N at 0.5 MPa.
Because the stroke is 260 mm, the M20x1.5 carbon steel rod will experience leverage on long unsupported travels, so an external guide is recommended to manage side loads. The rear adjuster acts only as a travel stop and relies on the air cushion for deceleration; it does not hold the load without live air pressure. For load-holding without continuous pressure, consider the SAIL or BSAI series. To match an ISO 15552 replacement, specify 80 mm bore, 260 mm stroke, 50 mm adjust, PT G3/8 ports, the required mounting, and the -S magnet.
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 SAIJ80X260-50S FAQ
At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, the push force reaches 513 kgf.
The rear adjuster screw lets you shorten the nominal 260 mm stroke by up to 50 mm, creating a usable travel window of 210 to 260 mm. The adjuster acts as a mechanical stop for the retract position and does not function as a lock to hold the load without live air.
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