Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100 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 SAIJ80X325-100
The AirTAC SAIJ80X325-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 325 mm travel back by up to 100 mm. This creates a wide 225-325 mm usable stroke window, letting you dial in the exact retract end-position during commissioning without swapping out the barrel. It delivers robust thrust, pushing with 2513 N and pulling with 2268 N at 0.5 MPa.
Built with a carbon steel piston rod and PT (tapered) G3/8 ports, this standard rod variant omits the magnet, meaning position sensing via CMSE or DMSE switches is not supported out of the box. The extruded aluminum profile barrel incorporates sensor grooves on three sides for flexible accessory mounting. Unlike fixed-stroke SAI models, this SAIJ variant gives you a built-in mechanical stop to fine-tune product changeovers on the fly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100 |
|---|---|
| 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 SAIJ80X325-100
| 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 SAIJ80X325-100 Is Used
Variable Length Diverter
Adjusts the retract stop from 225 to 325 mm to divert packages of different lengths on a single conveyor line without mechanical rebuilds.
Machine Changeover Setup
Speeds up product format changes by allowing operators to fine-tune the end-of-stroke position at the rear screw rather than repositioning the entire cylinder assembly.
Pressing Depth Calibration
Dials in precise pressing depths during commissioning, using the 100 mm trim window to compensate for mechanical tolerance stack-ups in the fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-100 the Right Cylinder?
Choose this 80 mm bore when your application requires substantial force—stepping down to a 63 mm bore drops the 0.5 MPa push force to 1559 N, while this 80 mm unit safely handles 2513 N. The 100 mm adjustment range is ideal for machinery processing varying product lengths, acting as an external stop integrated into the rear cap. Because the nominal stroke is 325 mm, the 25 mm rod diameter and M20x1.5 thread will carry moderate side loads, but an external guide rail is recommended for long unsupported loads to prevent rod binding.
This cylinder uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. The rear adjuster acts strictly as a travel stop and works alongside the 36 mm variable air cushions at both ends to decelerate the load; it does not lock or hold the load without live air pressure. For fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder, or use an external pilot-operated check valve.
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 SAIJ80X325-100 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 325 mm nominal stroke by up to 100 mm, creating a usable travel window of 225-325 mm. It sets the end position and works with the air cushions for deceleration, but it does not lock the load without live air pressure.
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