Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40S 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 SAIJ80BX90-40S
The AirTAC SAIJ80X90-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. Its 90mm nominal stroke can be dialed back by up to 40mm, creating a precise 50-90mm usable travel window for product changeovers without swapping hardware. This bore features a 25mm rod, G3/8 ports, and 36mm cushions.
Configured with a SUS304 stainless steel rod (code B) and a magnet for position sensing, it accepts AirTAC CMSE reed and DMSE electronic switches in its dual-side sensor grooves. The PT tapered port threads ensure a tight pneumatic seal, while the extruded aluminum barrel maintains standard ISO 15552 mounting dimensions.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40S |
|---|---|
| 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 SAIJ80BX90-40S
| 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 SAIJ80BX90-40S Is Used
Variable End-Stop Tuning
Dial in the exact 50-90mm end position during commissioning to accommodate varying material thicknesses without adding external stopper blocks.
Product Size Changeover
Quickly adjust the retract stroke by up to 40mm on packaging lines handling different carton sizes, reducing machine downtime.
Machining Clamping
Leverage the 2513N push force at 0.5 MPa to secure workpieces, using the fine stroke adjustment to prevent over-travel on delicate parts.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-40S the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than the 50mm option (982N push at 0.5 MPa) but less bulk than the 100mm class (3927N). The 40mm adjustment range is ideal for dialing in exact end positions during machine setup, functioning as a travel stop rather than a load lock. If true load-holding without live air pressure is needed, consider the SAIL or BSAI series instead.
For a direct ISO 15552 replacement match, specify an 80mm bore, 90mm stroke, 40mm adjustment, PT ports, and the -S magnet option. Mounting choices include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the stroke is under 300mm, side-load stress is minimal, though external guides remain recommended for heavy lateral 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 SAIJ80BX90-40S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that trims the effective travel back from the 90mm nominal stroke, providing a usable 50-90mm window. It only sets the end position and does not lock the load without live air pressure.
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