Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-100S 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 SAIJ80AX375-100S
The AirTAC SAIJ80X375-100-S 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 100 mm. This yields a highly flexible 275-375 mm usable stroke window, letting you fine-tune end positions at commissioning without swapping out the barrel. It delivers a robust 2513 N push force at 0.5 MPa and features a SUS420J2 stainless steel rod for improved corrosion resistance.
Equipped with a magnet for position sensing, this unit works seamlessly with AirTAC CMSE reed switches and DMSE solid-state sensors. The extruded aluminum barrel includes sensor grooves on both sides for easy switch mounting. Because the 375 mm stroke is relatively long, the 25 mm rod diameter should be paired with an external guide to prevent excessive side-loading on the piston. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-100S |
|---|---|
| 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 SAIJ80AX375-100S
| 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 SAIJ80AX375-100S Is Used
Variable End-Position Tuning
Dial in the exact 275-375 mm travel distance during machine commissioning to accommodate varying material lengths without adding external physical stops.
Production Line Changeovers
Quickly reconfigure the rear stroke stop for different product sizes on the same conveyor line, minimizing downtime between production runs.
Long-Stroke Assembly Pressing
Leverage the 2513 N thrust at 0.5 MPa for pressing operations, using the rear adjuster to fine-tune the engagement depth of long-travel tooling.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-100S the Right Cylinder?
Choose this 80 mm bore when you need substantial thrust—stepping down to a 63 mm bore drops the push force to 1559 N at 0.5 MPa, while stepping up to 100 mm yields 3927 N. An adjustable stroke is preferred over a fixed SAI cylinder for applications requiring variable end-stops or frequent product-size changeovers. For position holding without continuous air pressure, note that this standard SAIJ adjuster is not a lock; you would need to look at the SAIL or BSAI series instead.
To match this ISO 15552 replacement exactly, specify an 80 mm bore, 375 mm nominal stroke, 100 mm adjustment range, PT tapered port threads, and the -S magnet option. The available mounting set is reduced to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The operating speed is 30-800 mm/s.
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 SAIJ80AX375-100S FAQ
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder provides a push force of 2513 N and a pull force of 2268 N. At the maximum pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 375 mm down to 275 mm. It only sets the end position and decelerates the piston; it does not lock or hold the load without live air pressure.
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