Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50 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 SAIJ80X115-50
The AirTAC SAIJ80X115-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 115 mm stroke that can be fine-tuned backward by up to 50 mm, yielding a usable travel window of 65 to 115 mm. This on-board adjustment screw allows you to dial in the exact retract end-position during commissioning without swapping out the cylinder or adding external mechanical stops. Delivering 2513 N of push force at 0.5 MPa, it is built to handle substantial workloads.
The extruded aluminum barrel incorporates sensor grooves on both sides for flexible mounting of CMSE reed or DMSE solid-state switches if position feedback is later required. It uses a G3/8 port and a robust 25 mm carbon steel rod with an M20x1.5 thread, providing excellent rigidity and side-load resistance. The mounting hardware set is comprehensive yet specific to this adjustable series, supporting Basic, FA, LB, TC, FTC, TCM1, and TCM2 configurations while omitting the FB, CA, CB, and CR styles.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50 |
|---|---|
| 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 SAIJ80X115-50
| 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 SAIJ80X115-50 Is Used
Variable End-Stop Positioning
Dial the retract stroke back by up to 50 mm to create a 65-115 mm travel window, perfect for accommodating different material thicknesses on a single fixture without changing cylinders.
Machine Commissioning Tuning
Fine-tune the exact end-of-stroke position during initial setup to absorb mechanical tolerances, ensuring precise clamping or pressing without adding external stopper blocks.
Product Size Changeovers
Quickly adjust the travel distance on packaging or sorting lines when switching to a new product size, using the rear screw to set the new retract limit safely.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X115-50 the Right Cylinder?
Select this 80 mm bore when your application requires high thrust—2513 N push and 2268 N pull at 0.5 MPa—along with variable end-stop positioning. If your setup only needs 1374 N of push force at 0.5 MPa, stepping down to the 50 mm bore saves space and air consumption; conversely, moving up to the 100 mm bore yields 3927 N for heavier payloads. The 50 mm adjustment range here is ideal for machinery that processes multiple product sizes, letting operators reposition the retract stop on the fly. Remember that the rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for true fail-safe load holding, consider the SAIL or BSAI series instead. To match this ISO 15552 replacement, specify an 80 mm bore, 115 mm stroke, 50 mm adjustment, PT tapered port threads, and the appropriate mounting bracket.
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 SAIJ80X115-50 FAQ
It features a rear external adjusting screw that acts as a stopper, allowing you to shorten the effective stroke by up to 50 mm. This creates a usable travel window of 65 to 115 mm, letting you trim the retract distance without replacing the cylinder.
At 0.5 MPa operating pressure, it generates 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf.
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