Airtac SAIJ80 Adjustable Cylinder SAIJ80BX115-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX115-50S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke115 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX115-50S
The AirTAC SAIJ80X115-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 115 mm stroke that can be dialed back by up to 50 mm, creating a precise 65-115 mm usable travel window for product changeovers.
This variant includes a SUS304 stainless steel rod for corrosion resistance and an integrated magnet compatible with CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the rear adjuster acts purely as a mechanical stop to set the end position without holding the load without live air.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX115-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX115-50S |
|---|---|
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX115-50S
| 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 SAIJ80BX115-50S Is Used
Variable Product Changeover
Dial in the 65-115 mm stroke window during format changeovers on a packaging line, setting the exact retract distance for different carton sizes without changing the cylinder.
Commissioning End-Stop Tuning
Fine-tune the final retract position during machine setup to perfectly time a gripping or pressing action, avoiding the need to add external mechanical stoppers.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX115-50S the Right Cylinder?
Choose this 80 mm bore when 50 mm (982 N at 0.5 MPa) lacks thrust, but stepping up to 100 mm (3927 N) would be excessive. The 50 mm adjustment range is ideal for machines processing variable product sizes, allowing you to fine-tune the retract end at commissioning rather than swapping cylinders. The G3/8 PT ports and M20x1.5 rod thread provide robust fluid and mechanical connections.
For ISO 15552 replacement matching, specify bore 80, stroke 115, 50 mm adjustment, PT ports, and the -S magnet. Note that the SAIJ mounting set omits FB, CA, CB, and CR brackets, offering Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the rod is 25 mm with a 115 mm stroke, side-load is minimal, but an external guide is recommended for any long unsupported loads. To hold a load without live air pressure, use an SAIL or BSAI cylinder instead of relying on this adjuster.
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 SAIJ80BX115-50S FAQ
The rear adjuster screw lets you shorten the effective travel from the 115 mm nominal stroke down to 65 mm. This mechanical stop sets the retract end position for tuning but does not lock or hold the load without continuous air pressure.
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