Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-75S
The AirTAC SAIJ80X155-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling an effective travel window of 80 to 155 mm. Delivering a pull force of 2268 N at 0.5 MPa, it handles substantial actuation requirements while allowing precise end-position tuning without swapping out the unit.
This model features a carbon steel piston rod and PT tapered port threads. It includes a magnet for use with CMSE reed and DMSE electronic sensors, and utilizes a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) that omits FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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 SAIJ80X155-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×155 | 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 SAIJ80X155-75S Is Used
Product Changeovers
Dial the rear stopper back by up to 75 mm to accommodate varying package lengths on a packaging line without physically replacing the actuator.
Machine Setup
Fine-tune the retract end-position during initial commissioning to align tooling precisely, absorbing mechanical tolerances without machining external stop blocks.
Adjustable Ejection
Vary the ejection stroke between 80 and 155 mm to push different sized parts off a conveyor belt at a controlled 30-800 mm/s speed.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-75S the Right Cylinder?
Choose this 80 mm bore when you need more force than the 63 mm class (1402 N pull at 0.5 MPa) but want to avoid the larger footprint of a 100 mm cylinder. The 75 mm adjustment range is ideal for product-size changeovers, letting you dial in the retract end-stop at commissioning rather than adding external stops. If your process requires holding a load without live air pressure, note that the rear adjuster acts only as a travel stop, not a lock; you would need an external rod lock or a SAIL/BSAI cylinder for secure positioning. When matching ISO 15552 dimensions, specify the 80 mm bore, 155 mm stroke, 75 mm adjustment, PT G3/8 port, 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 SAIJ80X155-75S FAQ
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa, the push force reaches 4523 N.
The rear adjuster acts as a mechanical stop that shortens the nominal 155 mm stroke. You can trim the travel back by up to 75 mm, creating a usable window between 80 and 155 mm to fine-tune the retract position.
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