Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm 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
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50S
The AirTAC SAIJ80X105-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 105 mm travel by up to 50 mm. This yields a usable end-position window of 55 to 105 mm, letting you fine-tune the retract distance during commissioning without swapping out the barrel or adding external stops. It delivers a robust 2513 N pull force at 0.5 MPa, making it well-suited for heavier tooling.
Equipped with a standard magnet, this unit supports AirTAC CMSE reed and DMSE electronic solid-state sensors housed neatly in the dual-side extruded barrel grooves. The 25 mm carbon steel piston rod and M20x1.5 thread provide a rigid interface, though long unsupported strokes still require external guidance to prevent side-loading wear.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAIJ80X105-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SAIJ80X105-50S Is Used
Machine Changeover
Dial in the exact retract position from 55 to 105 mm during product size changes without machining new stop collars.
Tooling Calibration
Fine-tune the end-of-stroke position during setup to perfect grip or press distances on the production line.
Assembly Station Setup
Adjust the retract distance on the fly to accommodate varying part heights at heavy-duty assembly stations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50S the Right Cylinder?
Select this 80 mm bore when an application requires substantial thrust—such as the 2513 N pull at 0.5 MPa—combined with variable retract positioning. If your process needs less force, stepping down to a 63 mm bore yields 1402 N pull, whereas a 100 mm bore offers 3681 N pull for heavier loads. The integrated 50 mm adjuster is ideal for product changeovers where the exact end-stop varies, replacing the need for fixed-stroke SAI cylinders and secondary spacers.
Remember that the rear adjuster acts strictly as a mechanical travel stop paired with variable air cushions; it does not hold the load without live air pressure. For true fail-safe load holding, consider an external pilot-operated check valve or the AirTAC SAIL lock series. This unit is dimensionally interchangeable per ISO 15552 and features a PT tapered port thread.
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 SAIJ80X105-50S FAQ
The rear adjusting screw acts as a mechanical stopper that trims the effective travel back by up to 50 mm, giving you a usable stroke window of 55 to 105 mm. It sets the end position but does not lock the load without live air.
At 0.5 MPa it provides 2513 N of pull force and 3518 N of push force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf.
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