Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX375-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 375mm 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
- Stroke375 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 SAIJ80BX375-50
The AirTAC SAIJ80X375-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 375 mm travel by up to 50 mm, creating a precise 325-375 mm usable window. Delivering 2513 N of pull force at 0.5 MPa, it handles robust actuation while allowing on-the-fly end-position tuning without swapping the barrel or bolting on external stops. The extruded aluminum body includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic solid-state switches.
This configuration features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The rear adjuster functions purely as a travel stop to fine-tune the retract position, meaning it does not hold the load without live air pressure. For applications requiring true load-holding in the event of pressure loss, consider the related SAIL pneumatic lock or BSAI clamp-lock series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 375 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 SAIJ80BX375-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×375 | 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 SAIJ80BX375-50 Is Used
Machine Changeover
Dial in the retract stroke from 325 to 375 mm during product size transitions on a packaging line without replacing the cylinder.
End-Stop Tuning
Fine-tune the final end-position at machine commissioning to compensate for mechanical tolerance stack-up without adding external stops.
Variable Positioning
Actuate heavy gantry pushes or clamps where the exact stopping distance needs periodic adjustment to accommodate varying material thicknesses.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-50 the Right Cylinder?
The 50 mm adjustment range is ideal for machine setups requiring product-size changeovers, letting operators set variable end-stops precisely at commissioning rather than machining custom fixed-length SAI cylinders. Because the 375 mm stroke is relatively long, the 25 mm rod diameter should still be paired with an external guide to prevent excessive side-loading on the unsupported piston.
To match this ISO 15552 cylinder exactly, specify an 80 mm bore, 375 mm stroke, 50 mm adjustment range, PT port threads, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting options, and a SUS304 (B) rod material. Note that the SAIJ mounting set deliberately omits FB, CA, CB, and CR brackets.
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 SAIJ80BX375-50 FAQ
At the maximum rated pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back by up to 50 mm from the 375 mm nominal stroke, providing a 325-375 mm usable window. It only sets the travel end and does not function as a lock to hold the load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.