Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 90mm 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
- Stroke90 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40
The AirTAC SAIJ80X90-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 50-90 mm usable travel window. Delivering 2513 N of push force at 0.5 MPa, it provides robust actuation for mid-range pneumatic tasks. The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration omits the magnet.
Equipped with a SUS304 stainless steel rod and PT tapered ports, this unit handles demanding environments. The rear stopper allows precise end-position tuning during commissioning without adding external stops. Remember that this adjuster acts only as a travel stop, not a load lock; use a SAIL or BSAI cylinder for position holding without live air.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 90 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 SAIJ80BX90-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×90 | 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 SAIJ80BX90-40 Is Used
Machine Changeover
Quickly adjust the 50-90 mm travel window during product size changes without replacing the cylinder or bolting on external mechanical stops.
End-Position Tuning
Fine-tune the retract end position at commissioning to achieve precise mechanical spacing using the built-in rear stopper.
Robust Actuation
Leverage the 2513 N push force and SUS304 stainless steel rod for reliable performance in industrial handling and clamping tasks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40 the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa), but without the bulk of a 100 mm unit. The 40 mm adjustment range is ideal for product changeovers, letting operators dial in the exact 50-90 mm stroke on the fly instead of swapping cylinders. For fixed-travel needs without commissioning tweaks, a standard SAI cylinder suffices.
To match this ISO 15552 cylinder, specify an 80 mm bore, 90 mm stroke, PT port threads, and the SUS304 (B) rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Since the stroke is under 300 mm, side-load risks are lower, but external guiding remains recommended for heavy loads.
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 SAIJ80BX90-40 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 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 90 mm nominal stroke by up to 40 mm. This creates a usable travel window of 50-90 mm for fine-tuning end positions without swapping the cylinder.
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