Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX350-75S 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 SAIJ80BX350-75S
The AirTAC SAIJ80X350-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel window down to 275-350 mm. Delivering a robust 2268 N pull force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads.
This adjustable-stroke design allows you to fine-tune the retract end position directly at the machine without swapping cylinders or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-75S |
|---|---|
| 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 SAIJ80BX350-75S
| 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 SAIJ80BX350-75S Is Used
Variable End-Stop Tuning
Dial in the retract position within the 275-350 mm window during machine commissioning to set precise pressing depths without machining external stopper blocks.
Product Size Changeover
Quickly adapt automated lines to different part lengths by turning the rear adjuster screw, reducing setup downtime between production runs.
Extended Travel Positioning
Leverage the 350 mm stroke for long-travel material transfer while using the integrated CMSE/DMSE sensor magnet to confirm end-of-stroke arrival.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-75S the Right Cylinder?
Choose this 80 mm bore when a 63 mm cylinder (1402 N pull at 0.5 MPa) cannot provide enough force, but a 100 mm bore (3681 N pull) would be excessive. The 75 mm adjustment range is ideal for product changeovers requiring variable end stops. For replacing an ISO 15552 cylinder, match the 80 mm bore, 350 mm stroke, 75 mm adjustment, PT G3/8 ports, and the -S magnet.
Because the 350 mm stroke creates an extended lever arm, the 25 mm rod diameter requires an external guide to prevent excessive side-loading. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For dead-load holding, use an SAIL air-released lock, a BSAI clamp-lock, or an external rod lock. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80BX350-75S FAQ
It operates at speeds between 30 and 800 mm/s.
The rear adjuster screw lets you shorten the nominal 350 mm stroke by up to 75 mm, creating a 275-350 mm usable travel window. It acts as a mechanical stop for end-position tuning and is not a lock; it cannot hold a load without continuous air pressure.
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Covers non-human-caused product damage.
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