Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX105-40 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke105 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 SAIJ80BX105-40
The AirTAC SAIJ80X105-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 65 to 105 mm. It delivers 2513 N of pull force at 0.5 MPa and reaches a maximum of 513 kgf at 1.0 MPa, making it well-suited for medium-to-heavy handling tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This unit is built with a SUS304 stainless steel rod for corrosion resistance and uses PT tapered port threads with a G3/8 connection. The rear adjustment screw allows you to dial in the exact end position during commissioning without adding external stops. Note that this adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-40 |
|---|---|
| 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 | 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 SAIJ80BX105-40
| 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 SAIJ80BX105-40 Is Used
Machine Changeover
Dial in the exact 65 to 105 mm end-stop during product line changeovers without swapping cylinders or adding external mechanical stops.
Assembly Positioning
Fine-tune the retract stroke on assembly lines to accommodate varying part sizes, using the 2513 N pull force to move medium-weight jigs.
Conveyor End-Stop
Set a precise variable end position for pallets or workpieces, leveraging the corrosion-resistant SUS304 rod in varied industrial environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-40 the Right Cylinder?
Choose this 80 mm bore when you need higher thrust than a 50 mm bore (which provides 825 N pull at 0.5 MPa) but do not require the full 3681 N pull force of a 100 mm cylinder. The adjustable 65-105 mm travel is ideal for machines that need frequent end-position tuning or product changeovers without swapping the entire cylinder. If your application requires true load holding without continuous air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is not a lock.
For ISO 15552 replacement matching, ensure you specify the 80 mm bore, 105 mm stroke, 40 mm adjustment range, PT port thread, and the SUS304 (B) rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR styles found in some other lines. Since the 25 mm piston rod carries side loads well, it handles standard mounting securely.
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 SAIJ80BX105-40 FAQ
At its maximum rated pressure of 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster screw lets you shorten the nominal 105 mm stroke by up to 40 mm, creating a usable travel window of 65 to 105 mm. This stopper only sets the end position and does not lock the load without live air.
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