Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX350-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 350mm 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
- Stroke350 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 SAIJ80BX350-50S
The AirTAC SAIJ80X350-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 350 mm travel by up to 50 mm, creating a precise 300-350 mm usable positioning window. It delivers 2513 N of pull force at 0.5 MPa and includes a SUS304 stainless steel rod for superior corrosion resistance. Equipped with a magnet, it supports AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves.
This adjustable model omits the FB, CA, CB, and CR mountings, utilizing a focused set of ISO 15552 interfaces (Basic, FA, LB, TC, FTC, TCM1, TCM2) to simplify design. The rear stopper acts purely as a travel end-tuner for product changeovers, not as a load-holding lock; for dead-air position holding, consider SAIL or BSAI variants.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAIJ80BX350-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×350 | 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 SAIJ80BX350-50S Is Used
Product Changeover
Dial in the 300-350 mm stroke window during packaging line format changes to accommodate different carton lengths without replacing the cylinder.
End-Position Tuning
Fine-tune the retract end-stop during machine commissioning to dial out mechanical tolerance and achieve precise clamping without adding external stops.
Variable Assembly Stops
Adjust the travel end on the fly for multi-model assembly lines where the actuator must push components to varying distances within the 350 mm limit.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-50S the Right Cylinder?
Choose this 80 mm bore when an application requires 2513 N of pull force at 0.5 MPa and a variable end-stop within a 300-350 mm travel window. If your process needs less force, stepping down to a 63 mm bore yields 1402 N pull, while a 100 mm bore provides 3681 N for heavier loads. The adjustable stroke is ideal for machine setup and commissioning fine-tuning without swapping hardware.
Because the 350 mm stroke is substantial, the 25 mm rod and M20x1.5 thread provide robust support, but an external guide is still recommended to manage side loads. To match this ISO 15552 cylinder, specify an 80 mm bore, 350 mm stroke, 50 mm adjustment, PT tapered ports, the required mounting subset, and the -S magnet. Note that the rear adjuster only sets the travel end and will not hold the load without live air pressure.
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 SAIJ80BX350-50S FAQ
The rear adjuster screw lets you shorten the effective travel from the nominal 350 mm down to 300 mm, giving a 300-350 mm usable window. This stopper only sets the travel end and does not lock or hold the load without live air pressure.
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