Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-40 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 SAIJ80X225-40
The AirTAC SAIJ80X225-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 185 to 225 mm, allowing you to dial in the exact retract position without adding external stops. Operating at 0.5 MPa, it delivers 2513 N of push force and 2268 N of pull force.
It features a 25 mm carbon steel rod with an M20x1.5 thread, built to handle significant side loads, though long strokes still require external guidance. The extruded aluminum barrel includes sensor grooves on both sides for CMSE or DMSE switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-40 |
|---|---|
| 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 SAIJ80X225-40
| 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 SAIJ80X225-40 Is Used
Machine Setup Tuning
Fine-tune the 185-225 mm retract position during commissioning to perfect end-of-stroke alignment without swapping hardware.
Product Changeover
Quickly adapt the cylinder's travel window on packaging lines that handle varying product sizes, reducing downtime between runs.
Precision End-Stop Control
Utilize the 40 mm rear adjustment screw to set exact positioning for machining or clamping tasks that require strict depth control.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-40 the Right Cylinder?
Choose this 80 mm bore when an application demands more force than the 63 mm size, which provides 1559 N of push force at 0.5 MPa, but does not require the massive output of the 100 mm bore. The adjustable stroke is ideal for product changeovers, letting you fine-tune the end position at commissioning rather than swapping a fixed-stroke SAI cylinder.
When matching ISO 15552 replacements, verify the 225 mm stroke, 40 mm adjustment range, PT tapered port threads, and the selected mounting accessory. Remember that the rear adjuster functions only as a travel stop, not a load-holding lock; for dead-load holding without live air, consider the SAIL or BSAI series 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 SAIJ80X225-40 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 40 mm. This creates a usable travel window of 185 to 225 mm, providing precise retract end-position tuning without replacing the cylinder.
At an operating pressure of 0.5 MPa, the SAIJ80X225-40 generates 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
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