Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 325mm 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
- Stroke325 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100S
The AirTAC SAIJ80X325-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 225 to 325 mm, allowing you to dial back the nominal 325 mm stroke by up to 100 mm during commissioning without adding external stops. With a 25 mm carbon steel rod and M20x1.5 thread, it handles demanding positioning tasks while delivering 2513 N of push force at 0.5 MPa.
This -S variant includes a magnet for position sensing via CMSE reed or DMSE solid-state switches fitted into the dual-side sensor grooves. The extruded aluminum barrel design omits tie-rods, and the PT tapered G3/8 ports ensure a tight pneumatic seal. Remember that the rear adjuster acts only as a travel stop to decelerate the end position; it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 325 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 SAIJ80X325-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×325 | 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 SAIJ80X325-100S Is Used
Product Size Changeovers
Dial in the exact retract distance for varying package sizes on a conveyor without physically replacing the cylinder or repositioning hard stops.
Machine Setup Fine-Tuning
Trim the 325 mm stroke back by up to 100 mm during commissioning to perfectly align tooling endpoints without machining custom spacers.
Variable End-Stop Positioning
Provide a flexible retract end-position for automated assembly lines where downstream tooling heights occasionally shift between production runs.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100S the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than the 63 mm bore (1559 N at 0.5 MPa) but less than the 100 mm class (3927 N). The 100 mm adjustment range is perfect for product changeovers on a line, letting operators fine-tune the retract end-position quickly instead of physically swapping out a fixed-stroke SAI cylinder. For load-holding without continuous air, a plain SAIJ is insufficient since the adjuster is not a lock; you would need an external rod lock, a pilot-operated check valve, or a SAIL/BSAI series cylinder.
When matching ISO 15552 replacements, verify the 80 mm bore, 325 mm stroke, up to 100 mm adjustment, PT G3/8 port, and the -S magnet. Since the stroke is 325 mm, the 25 mm rod carries side-load risks over long unsupported travel; always use an external guide rail to prevent binding and premature seal wear.
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 SAIJ80X325-100S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can reach up to 4523 N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that shortens the 325 mm nominal stroke, giving an adjustable travel window of 225 to 325 mm. It sets the end position but does not lock the load without live air pressure.
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