Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm 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
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-30
The AirTAC SAIJ80X105-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N of push force at 0.5 MPa, making it suitable for heavy-duty positioning tasks. By turning the rear screw, you can trim the nominal 105mm stroke back by up to 30mm, creating a precise 75-105mm usable travel window without swapping hardware.
This unit features a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. The extruded aluminum barrel includes dual sensor grooves, allowing you to add CMSE reed or DMSE electronic switches if position feedback is later required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAIJ80BX105-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SAIJ80BX105-30 Is Used
Product Changeover
Dial in the 75-105mm travel window during format changeovers to accommodate different package sizes without machining new stop blocks.
End-Position Tuning
Fine-tune the final retract position during machine commissioning to perfect pressing or clamping force without replacing the cylinder.
Heavy Assembly Press
Leverage the 2513N push force at 0.5 MPa to seat heavy components, using the rear stopper to prevent over-travel on delicate parts.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-30 the Right Cylinder?
Choose this 80mm bore when a 50mm cylinder (providing 982N push at 0.5 MPa) lacks the thrust for your process, but a 100mm bore is physically oversized. The adjustable 75-105mm travel window is ideal for production lines running mixed product sizes, letting operators dial in the exact end-stop during changeovers instead of adding external shims. To match this cylinder for an ISO 15552 replacement, verify the 105mm stroke, 30mm adjustment range, PT port threads, and the required mounting bracket.
Because the stroke is relatively short at 105mm, side-loading on the 25mm rod is minimal, though external guides remain recommended for heavy off-center loads. Remember that the rear adjuster acts only as a travel stop to set deceleration alongside the air cushions; it does not hold the load without live air pressure. For true pneumatic locking without continuous 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 SAIJ80BX105-30 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. It can reach up to 4523N push force at its maximum 0.9 MPa pressure rating.
The rear adjuster screw acts as an external stopper, allowing you to shorten the 105mm nominal stroke by up to 30mm. This creates a usable travel window of 75-105mm, which is set mechanically during setup rather than by changing the cylinder.
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