Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 225mm 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
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100S
The AirTAC SAIJ80X225-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 125 to 225 mm. It generates 2513 N of push force and 2268 N of pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks. The barrel features sensor grooves on both sides, and because this unit includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-of-stroke detection.
The integrated PT tapered porting matches the G3/8 standard for this 80 mm bore, while the 25 mm carbon steel rod and M20x1.5 thread offer robust resistance to side loading. This adjustable model utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets to streamline changeover setups.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 225 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 SAIJ80X225-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 SAIJ80X225-100S Is Used
Variable End-Stop Positioning
Dials in the retract distance from 125 to 225 mm during production runs to accommodate multiple product lengths on the same fixture without changing hardware.
Machine Changeover Tuning
Speeds up line format changes by allowing operators to fine-tune the end position at the rear adjuster rather than repositioning entire cylinder assemblies.
Heavy-Duty Assembly Press
Leverages the 2513 N push force at 0.5 MPa to seat components securely, using the wide 100 mm adjustment window to set precise pressing depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X225-100S the Right Cylinder?
Select this 80 mm bore cylinder when an application requires high thrust (up to 2513 N at 0.5 MPa) but demands variable end-stops for product size changes; if you need less force, the 63 mm bore provides 1559 N. The 100 mm adjustment range allows you to dial in the exact retract position at commissioning without swapping the cylinder or adding external stops, unlike a fixed-stroke SAI model. Note that the rear adjuster acts only as a travel stop and deceleration device, not a lock; the cylinder will not hold a load without live air pressure, so for fail-safe load holding, consider an SAIL or BSAI cylinder instead.
Because the 225 mm stroke exceeds 200 mm, ensure an external guide supports any heavy or off-center loads to prevent rod damage. Operating speed ranges from 30 to 800 mm/s, supported by 36 mm air cushions at both ends. For an ISO 15552 replacement, match the 80 mm bore, 225 mm stroke, 100 mm adjustment, G3/8 PT ports, the desired mounting bracket, and the -S magnet requirement.
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 SAIJ80X225-100S FAQ
The rear adjuster lets you mechanically shorten the effective travel from the nominal 225 mm down by up to 100 mm, creating a 125-225 mm usable window. It acts as a physical stop to set the end position and works alongside the 36 mm air cushions for deceleration.
At 0.5 MPa, it provides 2513 N of push force and 2268 N of pull force. If you need higher thrust, stepping up to a 100 mm bore yields 3927 N of push force at the same pressure.
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