Airtac SAIJ80 Adjustable Cylinder SAIJ80BX225-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX225-40 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 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 SAIJ80BX225-40
The AirTAC SAIJ80X225-40 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical adjuster that trims the effective travel. With a 225 mm nominal stroke and a 40 mm adjustment range, it provides a usable travel window of 185 to 225 mm. This allows precise end-position tuning at commissioning without swapping hardware. The 80 mm bore delivers substantial force, pushing 4523 N at 0.9 MPa.
Built with a SUS304 stainless steel rod, this unit handles demanding environments and improved side-load resilience compared to standard carbon steel. It uses PT tapered ports (G3/8) and variable air cushions at both ends. The rear stopper sets the retract distance but does not lock the load; for position holding without live air, consider SAIL or BSAI variants.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX225-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX225-40 |
|---|---|
| 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 | 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 SAIJ80BX225-40
| 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 SAIJ80BX225-40 Is Used
Product Changeover
Dial in the 185-225 mm travel window during format changes on packaging lines, avoiding the need to physically swap cylinders for different package sizes.
End-Stop Calibration
Fine-tune the retract position during machine commissioning to perfectly align heavy 80 mm bore clamping forces without machining custom spacers.
Variable Positioning
Adjust the rear stopper to accommodate multiple part lengths in automated assembly equipment, relying on the robust SUS304 rod for durability.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX225-40 the Right Cylinder?
Select this 80 mm bore when an application requires high thrust (up to 4523 N at 0.9 MPa) alongside variable end-stops. Choose the SAIJ adjustable-stroke format over a fixed SAI when machine setups require frequent product-size changeovers or fine-tuning without adding external stops. To match this ISO 15552 replacement exactly, specify: 80 mm bore, 225 mm stroke, 40 mm adjustment, PT G3/8 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and no magnet. Since the stroke is over 300 mm? No, but always ensure external guiding for optimal rod life.
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 SAIJ80BX225-40 FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the nominal 225 mm stroke by up to 40 mm. This creates a usable travel window of 185 to 225 mm. Note that this adjuster is a stop, not a lock, and cannot hold the load without continuous air pressure.
It operates efficiently at speeds between 30 and 800 mm/s.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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