Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX240-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 240mm 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
- Stroke240 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 SAIJ80BX240-50S
The AirTAC SAIJ80X240-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This built-in adjustability allows operators to dial in exact retract end positions during commissioning without adding external stops.
This SKU includes a SUS304 stainless steel rod for superior corrosion resistance and features an integrated magnet for position sensing. The extruded aluminum barrel houses sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. Air cushioning at both ends decelerates the load, while the PT G3/8 porting matches the 80mm bore standard.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 240 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 SAIJ80BX240-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×240 | 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 SAIJ80BX240-50S Is Used
Product Changeovers
Leverage the 190-240mm travel window to rapidly accommodate varying carton or pallet sizes on a packaging line without physically swapping the actuator.
End-Position Tuning
Fine-tune the retract stroke during machine commissioning to achieve precise mechanical alignment, preventing crashes and ensuring repeatable operations.
Corrosive Assembly Lines
Utilize the SUS304 stainless steel rod in food, beverage, or washdown environments where standard carbon steel rods would degrade over time.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX240-50S the Right Cylinder?
Select this 80mm bore cylinder when an application demands high thrust alongside variable end-stop positioning. Conversely, heavier loads may require the 100mm bore at 3927N. The 50mm adjustment range is ideal for product-size changeovers on a packaging line, providing setup flexibility that a fixed-stroke SAI cylinder cannot match.
When replacing an ISO 15552 cylinder, match the 80mm bore, 240mm stroke, 50mm adjuster, PT G3/8 port, and -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air; for dead-air load holding, specify an SAIL or BSAI cylinder. As the 240mm stroke is relatively long, ensure adequate external guiding to prevent excessive rod side-loading.
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 SAIJ80BX240-50S FAQ
At a maximum 1.0 MPa, the push force reaches 513 kgf.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 240mm nominal stroke by up to 50mm. This creates a usable travel window of 190-240mm, enabling fine-tuning of the retract position without replacing the cylinder.
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Covers non-human-caused product damage.
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