Airtac SAIJ80 Adjustable Cylinder SAIJ80BX50-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX50-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 50mm 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
- Stroke50 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 SAIJ80BX50-30S
The AirTAC SAIJ80X50-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 50 mm travel back by up to 30 mm, creating a precise 20-50 mm usable window for exact end-position tuning. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch mounting.
This adjustable-stroke design eliminates the need to swap cylinders or add external stops during machine setup and product changeovers. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX50-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX50-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 50 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 SAIJ80BX50-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 SAIJ80BX50-30S Is Used
Variable End-Stop Positioning
Dial in the exact 20-50 mm travel window during machine commissioning to accommodate varying material thicknesses without physically swapping out the cylinder.
Rapid Product Changeover
Quickly adjust the retract end-position on automated lines when switching between different product sizes, minimizing downtime and avoiding external stop hardware.
Corrosion-Resistant Actuation
Leverage the SUS304 stainless steel rod in manufacturing environments requiring high force and reliable DMSE/CMSE sensor feedback alongside moisture resistance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX50-30S the Right Cylinder?
Choose this 80 mm bore when an application requires substantial thrust—stepping down to a 63 mm bore drops the push force to 1559 N at 0.5 MPa, while stepping up to a 100 mm bore yields 3927 N. The adjustable stroke is ideal for commissioning fine-tunes or accommodating variable product sizes on a line, rather than relying on a fixed-stroke SAI cylinder. Because the rear adjuster only acts as a travel stop and the air cushions handle deceleration, neither will hold a load without continuous air pressure; for true load-holding, consider an external rod lock, the SAIL series, or the BSAI clamp-lock. Ensure your ISO 15552 replacement matches the 80 mm bore, 50 mm stroke, 30 mm adjustment, PT tapered ports, and the -S magnet requirement.
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 SAIJ80BX50-30S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the 50 mm nominal stroke by up to 30 mm, providing a usable travel window of 20-50 mm. It sets the end position but does not lock or hold the load without live air pressure.
At 0.9 MPa, the push force increases to 4523 N.
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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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