Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-40S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX350-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 350mm 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
- Stroke350 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 SAIJ80BX350-40S
The AirTAC SAIJ80X350-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the retract end position by up to 40 mm. This yields a practical usable travel window of 310 to 350 mm, enabling exact end-position calibration during commissioning without adding external stops.
This variant features a SUS304 stainless steel piston rod (code B) for superior corrosion resistance and carries a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet (-S), it supports direct mounting of AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAIJ80BX350-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×350 | 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 SAIJ80BX350-40S Is Used
Machine Changeover
Dial in the 310-350 mm travel window during product size changes without swapping the cylinder or bolting on external physical stops.
End-Position Tuning
Fine-tune the retract stroke end by up to 40 mm during commissioning to perfect seating forces and eliminate mechanical hard crashes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-40S the Right Cylinder?
The adjustable stroke is ideal for machines that require variable end-stops for product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder. To match an ISO 15552 replacement, specify the 80 mm bore, 350 mm stroke, 40 mm adjustment, PT ports, SUS304 rod, and the -S magnet.
Because the nominal stroke is 350 mm, the M20x1.5 rod thread and 25 mm rod diameter must handle increased leverage; always use an external guide to prevent side-load damage on long travels. Remember that the rear adjuster acts only as a travel stop, not a load lock. For dead-stop holding without live air pressure, select an SAIL pneumatic lock or BSAI clamp-lock cylinder 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 SAIJ80BX350-40S FAQ
It can deliver up to 513 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 350 mm down to 310 mm. This creates a 310-350 mm usable window for fine-tuning the end position without replacing the cylinder.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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