Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 145mm 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
- Stroke145 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75S
The AirTAC SAIJ80X145-75-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 145 mm stroke that can be fine-tuned backward by up to 75 mm, yielding a highly flexible 70 to 145 mm usable travel window. Delivering 2513 N of push force and 2268 N of pull force at 0.5 MPa, it fits robust actuation tasks perfectly.
This unit includes a magnet for position sensing, operating seamlessly with AirTAC CMSE reed and DMSE solid-state switches housed in the dual-side sensor grooves. The extruded aluminum barrel omits tie-rods, and the mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, purposely excluding FB, CA, CB, and CR brackets. Its 25 mm carbon steel rod and M20x1.5 thread provide strong resistance against side loads, while the PT tapered ports ensure a rigid pneumatic connection.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 145 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 SAIJ80X145-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×145 | 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 SAIJ80X145-75S Is Used
Product Changeover Adjustment
Dial the end-position back by up to 75 mm on packaging lines when switching to shorter product formats, skipping cylinder swaps.
Variable End-Stop Positioning
Set precise retract distances between 70 and 145 mm during machine commissioning to perfect timing without external stopper blocks.
Multi-Format Assembly Lines
Handle diverse part sizes on a single conveyor setup by adjusting the stroke window to match varying material widths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-75S the Right Cylinder?
Select this 80 mm bore over the smaller 63 mm variant (which yields 1559 N push at 0.5 MPa) when your application demands higher thrust, or step up to the 100 mm bore (3927 N push) for heavy-duty positioning. The 75 mm adjustment range is ideal for machines processing multiple product sizes, allowing you to shift the end-stop during changeovers without adding external stops or swapping cylinders. Because the stroke is 145 mm, an external guide is recommended if side loads are present.
For ISO 15552 replacement matching, specify an 80 mm bore, 145 mm stroke, 75 mm adjustment range, PT port threads, and the required mounting bracket. Note that the rear adjuster acts solely as a mechanical stop; it does not hold the load without live air pressure. For fail-safe load holding, consider the SAIL or BSAI cylinder series instead.
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 SAIJ80X145-75S FAQ
At a 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw lets you mechanically shorten the 145 mm nominal stroke by up to 75 mm, creating a usable travel window of 70 to 145 mm. The adjuster acts as a travel stop and does not lock the load without air pressure.
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