Airtac SAIJ80 Adjustable Cylinder SAIJ80BX225-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX225-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 225mm 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
- Stroke225 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 SAIJ80BX225-50S
The AirTAC SAIJ80X225-50-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 175 to 225 mm, letting you dial back the nominal 225 mm stroke by up to 50 mm. This bore size delivers 2513 N of pull force at 0.5 MPa, making it robust enough for heavy positioning tasks.
This variant features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for position sensing. It is compatible with AirTAC CMSE reed switches and DMSE electronic solid-state sensors. The extruded aluminum barrel design omits tie-rods, and the mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX225-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX225-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 225 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 SAIJ80BX225-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 SAIJ80BX225-50S Is Used
Machine Changeover
Dial in the 175-225 mm travel window during product size transitions without physically replacing the actuator on your line.
End-Position Tuning
Use the 50 mm rear stopper to fine-tune the retract stroke during initial commissioning, eliminating the need for external mechanical stops.
Heavy Duty Positioning
Leverage the 2513 N pull force at 0.5 MPa to move heavy jigs or fixtures reliably while using the adjustable stroke to set exact stopping points.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX225-50S the Right Cylinder?
Choose this 80 mm bore if your application requires more force than the 63 mm size (which offers 1402 N pull at 0.5 MPa) but less than the 100 mm class. The 50 mm adjustment range is ideal for product changeovers, allowing you to fine-tune the end position at commissioning without swapping the cylinder or adding external stops. PT tapered ports are standard for this bore.
Because the stroke is 225 mm, you should support the load with an external guide to prevent excessive side-loading on the SUS304 rod. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. To match this ISO 15552 replacement exactly, verify the 80 mm bore, 225 mm stroke, 50 mm adjustment, PT port, and -S magnet.
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 SAIJ80BX225-50S FAQ
The maximum operating pressure is 1.0 MPa.
The rear adjuster screw lets you shorten the effective stroke from the nominal 225 mm down to 175 mm. It functions as a travel stop and does not lock the load without live air pressure.
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