Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX120-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 120mm 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
- Stroke120 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 SAIJ80BX120-50S
The AirTAC SAIJ80X120-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 70-120 mm from its 120 mm nominal stroke. This adjustable model lets you fine-tune end positions at commissioning without swapping the cylinder or adding external stops.
It includes a magnet for position sensing, working seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches. The mounting footprint supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments. Note that the rear adjuster acts purely as a mechanical travel stop; it does not hold the load without live air pressure, so consider an SAIL or BSAI lock for load-holding needs.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 120 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 SAIJ80BX120-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 SAIJ80BX120-50S Is Used
Machine Setup Tuning
Dial in the exact 70-120 mm end-position during commissioning to align stamping or pressing heads without fabricating custom spacers.
Product Changeover
Quickly adjust the effective stroke up to 50 mm when switching to a different product size on the conveyor line, minimizing downtime.
Sensor-Driven Positioning
Leverage the integrated magnet with DMSE solid-state sensors to confirm variable end-stops across the adjustable travel window.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-50S the Right Cylinder?
The adjustable 50 mm trim window is perfect for product changeovers on a packaging line, allowing variable end-stops without machining new hard stops. For fixed travel without the need for field tuning, a standard SAI cylinder is a simpler alternative.
To replace an ISO 15552 cylinder, match the 80 mm bore, 120 mm stroke, PT G3/8 port, and the -S magnet requirement. Because this is a double-rod profile cylinder, ensure your mounting choice from the reduced SAIJ set accommodates the rear adjuster. The 120 mm stroke is short enough that side-load from an unsupported mass is minimal, but the 25 mm SUS304 rod still handles off-center loads better than smaller diameters.
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 SAIJ80BX120-50S FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 120 mm nominal stroke by up to 50 mm, creating a usable travel window of 70-120 mm. It only sets the travel end and does not lock the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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