Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-75S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke375 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-75S
The AirTAC SAIJ80X375-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 3518N of push force at 0.7 MPa and provides a usable travel window of 300 to 375 mm, letting you dial in the exact retract position without swapping components. A built-in magnet enables position sensing with AirTAC CMSE reed or DMSE electronic switches.
This SKU specifies a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It uses a PT tapered port and omits the FB, CA, CB, and CR mounting interfaces, offering a reduced set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts tailored for adjustable setups.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-75S |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-75S
| 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 SAIJ80AX375-75S Is Used
Product Changeovers
Dial in the retract position up to 75mm during packaging line format changes without replacing the cylinder or adding external stops.
Machine Setup
Fine-tune the end-of-stroke position during commissioning to achieve exact mechanical timing before locking down the setup.
Variable End Stops
Adjust the travel window from 300 to 375mm on the fly to accommodate varying material lengths in automated clamping stations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-75S the Right Cylinder?
Choose this 80mm bore when an application requires substantial thrust, such as the 2513N pull force at 0.5 MPa, but demands on-site fine-tuning of the end-of-travel position. The 75mm adjustment range is ideal for accommodating product size changeovers directly at the machine, rather than installing external physical stops.
Because the nominal stroke is 375mm, an external guide is recommended to prevent excessive side-loading on the 25mm rod. Note that the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series. To match this cylinder for an ISO 15552 replacement, specify: 80mm bore, 375mm stroke, 75mm adjustment, PT G3/8 port, SUS420J2 rod, and the -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 SAIJ80AX375-75S FAQ
At an operating pressure of 0.7 MPa, this 80mm bore cylinder provides 3518N of push force and 3182N of pull force. It operates at speeds between 30 and 800 mm/s.
The rear adjuster acts as an external stopper that lets you mechanically shorten the effective travel from the 375mm nominal stroke down to 300mm. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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