Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-50 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-50
The AirTAC SAIJ80X225-50 is a double-acting 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 225 mm nominal stroke by up to 50 mm during commissioning. The 80 mm bore delivers 4523 N of push force at 0.9 MPa, making it suitable for heavy positioning tasks.
This extruded aluminum profile barrel includes sensor grooves on both sides for CMSE reed or DMSE solid-state switches, though this specific SKU omits the internal magnet. It uses a PT tapered G3/8 port and a 25 mm carbon steel rod with an M20x1.5 thread. The rear adjuster acts purely as a travel stop for end-position tuning, not a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-50 |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-50
| 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 SAIJ80X225-50 Is Used
Variable End-Stop Tuning
Dial in the exact clamping end-position within the 175-225 mm window during machine setup without physically swapping out the pneumatic hardware.
Product Changeovers
Quickly adjust the travel distance on an automated line to accommodate different product lengths, utilizing the 50 mm rear screw stopper.
Heavy Assembly Positioning
Leverage the 4523 N push force at 0.9 MPa to move heavy components into place, relying on the 25 mm rod to handle substantial side loads.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-50 the Right Cylinder?
Choose this 80 mm bore when you need more thrust than a 63 mm cylinder (which provides 2805 N push at 0.9 MPa) but less bulk than a 100 mm unit. The 50 mm adjustment range is ideal for product-size changeovers, allowing you to shift the end-stop without swapping the cylinder or adding external stops. If your process requires the load to stay put without live air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster and air cushions do not function as a brake.
To match this ISO 15552 footprint exactly, specify an 80 mm bore, 225 mm stroke, 50 mm adjustment, PT G3/8 port, and standard carbon steel rod. The 225 mm stroke is below the 1500 mm maximum, but for any travel over 300 mm, an external guide is recommended to manage side loads. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ80X225-50 FAQ
At an operating pressure of 0.9 MPa, this 80 mm bore cylinder generates a push force of 4523 N and a pull force of 2268 N.
The rear adjuster screw allows you to shorten the effective travel from the 225 mm nominal stroke down to a minimum of 175 mm, providing a 50 mm tuning window for precise end-position calibration.
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