Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-20 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 SAIJ80AX375-20
The AirTAC SAIJ80X375-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 355 to 375 mm, allowing you to dial back the nominal 375 mm stroke by up to 20 mm during machine commissioning without adding external stops. Delivering 4523 N of push force at 0.9 MPa, it handles substantial actuation loads with precision.
This model uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches. Because the 375 mm stroke is relatively long, an external guide is recommended to prevent excessive side-loading on the rod.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-20 |
|---|---|
| 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 SAIJ80AX375-20
| 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 SAIJ80AX375-20 Is Used
Machine Commissioning
Fine-tune the 355-375 mm travel window during initial setup to perfectly strike the workpiece without machining custom spacers.
Product Changeover
Quickly adjust the rear stop by up to 20 mm on packaging lines when handling slightly shorter boxes or trays.
Variable End Stops
Dial in the exact retraction end-point for multi-stage assembly processes requiring strict positional control.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-20 the Right Cylinder?
Choose this 80 mm bore cylinder when your application requires 4523 N of push force at 0.9 MPa but might need slight end-position tuning at setup. If your changeover demands less force, stepping down to the 63 mm bore yields 2805 N at the same pressure. The rear adjuster screw acts purely as a mechanical stop to set the travel end; it does not hold the load without live air. For true load-holding on failure, select the SAIL or BSAI series instead.
This SAIJ80X375-20 is dimensionally interchangeable per ISO 15552. To match this exact configuration, specify the 80 mm bore, 375 mm stroke, 20 mm adjustment, PT tapered port threads, and no magnet. The available mounting interface 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 SAIJ80AX375-20 FAQ
At 0.9 MPa operating pressure, this 80 mm bore cylinder provides 4523 N of push force and 2268 N of pull force. Its maximum thrust is 513 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the effective travel from 375 mm down to 355 mm. This mechanical stop fine-tunes the end position but does not lock or hold the load without continuous air pressure.
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