Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40S 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 SAIJ80AX375-40S
The AirTAC SAIJ80X375-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 335 to 375 mm, allowing you to dial back the 375 mm nominal stroke by up to 40 mm during commissioning. Delivering 3518 N of push force at 0.7 MPa, it is built with an SUS420J2 stainless steel rod and includes a magnet for position sensing.
This model uses PT tapered ports sized G3/8 and supports a speed range of 30-800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts strictly as a mechanical stop for end-position tuning, not a load-holding lock, so live air pressure is required to maintain position.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40S |
|---|---|
| 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 SAIJ80AX375-40S
| 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 SAIJ80AX375-40S Is Used
Machine Changeover
Fine-tune the retract end-position by up to 40 mm during product size transitions without physically swapping the cylinder or adding shims.
End-Stop Tuning
Dial in the exact 335-375 mm travel window at commissioning to perfect the seating force of a press or clamping operation.
Automated Assembly
Leverage the 3518 N push force at 0.7 MPa to actuate heavy tooling, using the DMSE sensors to confirm end-of-stroke arrival.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40S the Right Cylinder?
Choose this 80 mm bore when an application requires high thrust that exceeds the 1374 N push force of a 50 mm cylinder, but does not need the massive 5497 N output of a 100 mm bore. The adjustable stroke is ideal for machine changeovers, letting you fine-tune the retract end-position without swapping hardware or adding external stops. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the 375 mm stroke is relatively long, the 25 mm diameter rod and M20x1.5 thread provide rigidity, but an external guide rail is still recommended to prevent excessive side-loading. For applications that must hold a load without live air pressure, this cylinder is not suitable; consider the SAIL air-released lock or BSAI clamp-lock series instead. To match this ISO 15552 footprint, specify the 80 mm bore, 375 mm stroke, 40 mm adjustment, PT G3/8 ports, and the -S magnet option.
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 SAIJ80AX375-40S FAQ
At 0.7 MPa operating pressure, this 80 mm bore cylinder generates 3518 N of push force and 2268 N of pull force. It can deliver a maximum push force of 4523 N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that shortens the effective travel. For this model, you can trim the 375 mm nominal stroke back by up to 40 mm, creating a usable 335-375 mm window. It only sets the travel end and does not lock the load without live air.
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