Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 150mm 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
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40S
The AirTAC SAIJ80X150-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 110-150 mm usable travel window, allowing you to dial back the 150 mm nominal stroke by up to 40 mm during commissioning. Delivering 4523 N of push force at 0.9 MPa, it is built with a 25 mm carbon steel rod and PT tapered ports.
This extruded aluminum profile cylinder includes a magnet for CMSE reed and DMSE electronic sensors, fitting cleanly into standard sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop for end-position tuning and does not hold the load without live air pressure. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 150 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 SAIJ80X150-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SAIJ80X150-40S Is Used
Machine Changeover
Quickly fine-tune the 110-150 mm travel window during product size changes on a packaging line without bolting on external physical stops.
End-Position Tuning
Dial in the exact retract distance by up to 40 mm at commissioning to perfect a pressing or forming operation before final lock-down.
Variable Diverter Stops
Adjust the stroke length on the fly for a conveyor sorting diverter to accommodate different carton sizes using the rear adjustment screw.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40S the Right Cylinder?
Selecting this 80 mm bore over a 63 mm neighbor (1402 N pull at 0.5 MPa) provides significantly higher thrust for heavier payloads. The adjustable 40 mm stroke window is ideal for product changeovers on a line, letting you fine-tune the retract end-position without swapping the cylinder or adding external stops. For load-holding without live air, this standard SAIJ adjuster is only a travel stop, so you would need an external rod lock or a SAIL pneumatic lock cylinder.
Because the nominal stroke is 150 mm, side-load risks are moderate, but the 25 mm rod and M20x1.5 thread handle typical loads well; ensure external guides are used if pushing off-center. To replace an ISO 15552 cylinder, match the 80 mm bore, 150 mm stroke, G3/8 PT ports, the desired mounting bracket, and the -S magnet requirement.
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 SAIJ80X150-40S FAQ
At 0.5 MPa, it provides 2513 N push and 2268 N pull force. At 0.9 MPa, the push force increases to 4523 N.
The rear adjuster screw lets you shorten the 150 mm nominal stroke by up to 40 mm, creating a usable travel window of 110 to 150 mm. It functions as a mechanical stop and does not lock the load without air pressure.
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