Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75 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 SAIJ80AX225-75
The AirTAC SAIJ80X225-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down to a 150-225 mm range without adding external stops. Built with an extruded aluminum barrel and sensor grooves on both sides, it delivers robust performance with 2513 N push and 2268 N pull thrust at 0.5 MPa. This model uses a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and features a 25 mm rod diameter with an M20x1.5 thread to handle high side loads.
Equipped with variable air cushions at both ends and a 36 mm cushion length, the rear adjustment mechanism acts purely as a mechanical stopper to set the retract end position. It is not a locking device and will not hold the load without live air pressure. For applications requiring true fail-safe load holding, consider the AirTAC SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75 |
|---|---|
| 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 SAIJ80AX225-75
| 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 SAIJ80AX225-75 Is Used
Product Changeover Systems
Dial in the exact end-stop up to 75 mm during format changes on packaging lines, avoiding the need to physically swap cylinders for different carton sizes.
Multi-Position End-Stops
Achieve precise retract positioning within the 150-225 mm travel window, using the rear screw to set the exact datum for machining operations.
Adjustable Diverting Arms
Fine-tune the stroke length on conveyor sorting gates during commissioning to accommodate varying product widths without external hard stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-75 the Right Cylinder?
Choose this 80 mm bore when your application requires significantly more force than the 63 mm bore (which provides 1402 N pull at 0.5 MPa) but does not demand the massive output of the 100 mm class. The 75 mm adjustment range is ideal for machine setups requiring frequent product changeovers, allowing operators to dial in the exact end-stop on the fly rather than swapping out a fixed-stroke SAI cylinder.
When configuring your ISO 15552 replacement, match the 80 mm bore, 225 mm stroke, PT tapered port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is 225 mm, ensure proper external guiding to prevent rod bending under heavy side loads. This SKU does not include a magnet for proximity sensing.
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 SAIJ80AX225-75 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from its 225 mm nominal length down to as little as 150 mm. It allows precise end-position tuning at commissioning without replacing the cylinder.
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