Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm 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
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-75S
The AirTAC SAIJ80X105-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513 N of push force at 0.5 MPa, utilizing a G3/8 port and a 25 mm carbon steel rod. Because of the generous 75 mm adjustment code, you can dial the effective travel down from the 105 mm nominal stroke to as little as 30 mm, creating a highly versatile 30-105 mm usable window for variable end-position tuning.
This rear screw acts purely as a mechanical stop to fine-tune the retract position during commissioning or product changeover, meaning you never have to swap the cylinder or bolt on external stops. It includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, and uses the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR options. The adjuster and the variable air cushions decelerate the load but do not hold it without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAIJ80X105-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SAIJ80X105-75S Is Used
Variable End-Stop Tuning
Ideal for machines processing different part lengths, allowing operators to dial the stroke back anywhere from 105 mm down to 30 mm via the rear screw without changing hardware.
Commissioning Fine-Tune
Perfect for final positioning adjustments during machine setup, using the 75 mm window to perfectly time the retract stroke without adding external mechanical stops.
Product Changeover Systems
Enables rapid format size changes on packaging or sorting conveyors, using the 2513 N force to push varying product sizes accurately to a newly adjusted stop position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-75S the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa) but less than the massive 3927 N of a 100 mm bore. The 75 mm adjustment range is exceptionally wide, allowing a single cylinder to handle multiple product sizes on the same line by simply turning the rear screw to shift the 30-105 mm travel window. If the machine requires the load to be held in place without continuous compressed air, a standard SAIJ is insufficient since the adjuster is a stop, not a lock; you would need to step up to an AirTAC SAIL or BSAI cylinder, or use an external pilot-operated check valve.
For an exact ISO 15552 dimensional replacement, match the 80 mm bore, 105 mm stroke, 75 mm adjustment, PT tapered port thread, and the -S magnet specification. Ensure your mounting choice falls within the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). The 25 mm rod and M20x1.5 thread provide excellent side-load resistance, though for any setup approaching or exceeding 300 mm of travel, an external guide rail is still recommended to prevent rod binding.
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 SAIJ80X105-75S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 105 mm nominal stroke by up to 75 mm, resulting in a usable travel window of 30 to 105 mm. It sets the end position but does not lock the load without live air pressure.
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