Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 115mm 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
- Stroke115 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50S
The AirTAC SAIJ80X115-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. Equipped with a -S magnet for CMSE reed and DMSE electronic sensors, it provides a usable travel window of 65-115 mm, allowing you to dial back the 115 mm nominal stroke by up to 50 mm during commissioning.
Delivering 4523 N of push force at 0.9 MPa, this 80 mm bore profile cylinder uses a 25 mm carbon steel rod with an M20x1.5 thread. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 115 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 SAIJ80X115-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×115 | 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 SAIJ80X115-50S Is Used
Machine Changeover
Fine-tune the 65-115 mm travel window on the fly to accommodate different product sizes without physically swapping out the cylinder.
End-Position Tuning
Dial in the exact retract end-stop during commissioning to perfect a pressing or clamping operation, avoiding costly mechanical shimming.
Automated Clamping
Leverage the 4523 N push force at 0.9 MPa to secure heavy workpieces, using the adjustable stop to set precise clamping depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50S the Right Cylinder?
Choose this 80 mm bore model when an application requires substantial thrust (2513 N push at 0.5 MPa) but falls short of needing the 3927 N push force provided by the 100 mm bore variant. The 50 mm adjustment range is ideal for product changeovers, letting you fine-tune the end position without swapping the cylinder or adding external stops. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For load-holding requirements, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 115 mm stroke, 50 mm adjustment range, PT tapered port thread, and the -S magnet option. Because the 115 mm stroke is relatively short, side-loading is less of a concern than on longer strokes, but the 25 mm rod still requires an external guide for heavy lateral loads.
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 SAIJ80X115-50S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 50 mm. This provides a usable travel window of 65-115 mm, enabling precise end-position tuning at commissioning or during product changeovers without replacing the cylinder.
At an operating pressure of 0.9 MPa, the SAIJ80X115-50-S generates a push force of 4523 N and a pull force of 3681 N. It can deliver a maximum push force of approximately 513 kgf at 1.0 MPa.
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