Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX350-100S 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 SAIJ80BX350-100S
The AirTAC SAIJ80X350-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 250-350 mm usable travel window by dialing the rear stopper up to 100 mm, allowing precise end-position tuning during commissioning without adding external stops.
This model includes a magnet for CMSE and DMSE sensors, with electronic solid-state and reed switch options fitting neatly into the extruded aluminum barrel grooves on both sides. The PT tapered port threads ensure a robust pneumatic seal, while the integrated air cushions handle end-of-stroke deceleration. Remember that the adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-100S |
|---|---|
| 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 SAIJ80BX350-100S
| 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 SAIJ80BX350-100S Is Used
Product Changeover Tuning
Dial the rear stopper to shift the 250-350 mm travel window instantly for different package lengths on a packaging line.
Variable Diverter Stroke
Adjusts the pusher end-position on the fly to route different box sizes without physically replacing the cylinder.
Machine Setup Calibration
Fine-tunes the retract end-position during initial commissioning to achieve precise mechanical alignment.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-100S the Right Cylinder?
If you need less force, stepping down to a 63 mm bore yields 1559 N, but this SAIJ80X350-100-S provides the extra thrust needed for heavier product changeovers. The 350 mm stroke exceeds typical compact boundaries, so an external guide is recommended to manage side loads on the 25 mm rod.
An adjustable stroke is selected over a fixed SAI cylinder when machine setups frequently change product sizes, requiring a variable end position rather than swapping the entire actuator. For any load-holding requirements without live pressure, this cylinder is insufficient as the adjuster is not a lock; you should look toward the SAIL or BSAI series. This SKU maps to ISO 15552 mounting dimensions, an 80 mm bore, 350 mm stroke, 100 mm adjust, PT G3/8 ports, and a -S magnet.
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 SAIJ80BX350-100S FAQ
The rear adjuster screw lets you shorten the 350 mm nominal stroke by up to 100 mm, creating a 250-350 mm usable travel window. It functions purely as a mechanical stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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