Airtac SAIJ80 Adjustable Cylinder SAIJ80BX155-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX155-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 155mm 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
- Stroke155 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 SAIJ80BX155-50S
The AirTAC SAIJ80X155-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated -S magnet enables seamless position detection with AirTAC CMSE reed or DMSE electronic solid-state switches mounted into the dual-side sensor grooves.
This specific SKU provides a 105-155mm usable travel window, allowing you to dial back the 155mm nominal stroke by up to 50mm during commissioning. The extruded aluminum barrel accepts a focused mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX155-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX155-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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 SAIJ80BX155-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×155 | 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 SAIJ80BX155-50S Is Used
Machine Setup Changeover
Fine-tune the 105-155mm retract end-stop rapidly during product size changes without bolting on external stops or replacing the cylinder.
Variable End-Stop Positioning
Dial in the exact retraction point for diverters or gates on a conveyor line, utilizing the 50mm adjustment range to accommodate varying package dimensions.
Sensor-Driven Assembly
Leverage the integrated -S magnet with CMSE or DMSE switches to confirm rod position in automated assembly presses requiring precise end-of-stroke tuning.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX155-50S the Right Cylinder?
The 50mm adjustment range is ideal for product changeovers on a packaging line, letting operators set variable end-stops without swapping cylinders or adding external stops. To replace this cylinder with another ISO 15552 dimensionally interchangeable unit, match the 80mm bore, 155mm stroke, 50mm adjust, PT G3/8 port, and the -S magnet requirement.
Because the nominal stroke is 155mm, side-load risks are minimal, but the 25mm SUS304 rod and M20x1.5 thread handle standard loads effectively. Remember that the rear adjuster and air cushions only decelerate the travel end; they are not a lock. For load-holding without live air pressure, select an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ80BX155-50S FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear mechanical adjuster allows you to shorten the 155mm nominal stroke by up to 50mm, creating a usable travel window of 105-155mm. The adjuster acts as a stop to set the end position and does not function as a load lock.
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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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