Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-75S 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 SAIJ80X150-75S
The AirTAC SAIJ80X150-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down to a 75-150 mm window. It delivers a robust 3518 N push force at 0.7 MPa, making it well-suited for heavy positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides, and because this is the -S variant, it carries a magnet for direct compatibility with AirTAC CMSE reed and DMSE electronic solid-state switches.
This model uses a 25 mm carbon steel rod with an M20x1.5 thread, providing high rigidity against side loads. It features PT tapered port threads and provides variable air cushioning at both ends to manage deceleration. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning; it does not lock or hold the load without continuous air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-75S |
|---|---|
| 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 SAIJ80X150-75S
| 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 SAIJ80X150-75S Is Used
Product Changeover
Dial in the exact end-stop for different sized parts on a single line, utilizing the 75 mm travel window to avoid manual stop adjustments.
Machine Setup
Fine-tune the retract position during commissioning to achieve precise mechanical alignment without machining new spacers.
Variable Diverter
Adjust the stroke length on the fly to accommodate varying package dimensions on a sorting conveyor line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-75S the Right Cylinder?
Choose this 80 mm bore when you need more thrust than a 63 mm cylinder offers (1559 N at 0.5 MPa) but want to avoid the bulk of a 100 mm unit. The 75 mm adjustment range is ideal for machines requiring variable end-stops during product changeover, saving you from swapping out a fixed-stroke SAI cylinder or adding external stops. For any load-holding requirements without live air pressure, this cylinder is not a lock; you should instead specify an SAIL or BSAI series. To replace an ISO 15552 cylinder, match the 80 mm bore, 150 mm stroke, 75 mm adjustment, PT 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 SAIJ80X150-75S FAQ
At 0.7 MPa, this 80 mm bore cylinder provides a push force of 3518 N and a pull force of 2268 N. It can reach a maximum push force of 4523 N at 0.9 MPa.
The rear adjuster screw lets you shorten the nominal 150 mm stroke by up to 75 mm, providing a usable travel window between 75 and 150 mm. It functions as a mechanical stop for end-position tuning and requires live air to hold the load.
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