Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 270mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke270 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50S
The AirTAC SAIJ100X270-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5 MPa. It features a carbon steel piston rod and a PT tapered port. Because this specific SKU includes the -S magnet option, it directly supports AirTAC CMSE reed and DMSE electronic solid-state sensors for precise end-position detection.
With a nominal 270mm stroke and a 50mm adjustment range, you gain a usable travel window of 220-270mm. This built-in rear stopper allows you to fine-tune the retract end-position during commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 270 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×270 | 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 SAIJ100 Adjustable Cylinder SAIJ100X270-50S Is Used
Product Size Changeovers
Dial in the exact 220-270mm retract distance on packaging lines when switching between different carton sizes, eliminating the need for mechanical spacers.
Machine Setup Tuning
Fine-tune the end-of-stroke position during initial commissioning to perfectly time the 3927N clamping force without physically remounting the actuator.
Variable End-Stop Positioning
Provide a customizable physical stop for assembly stations that need to adjust the working depth dynamically based on the specific component being pressed.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X270-50S the Right Cylinder?
Choose this 100mm bore when a 63mm cylinder (providing 1559N push at 0.5 MPa) is insufficient, but a 125mm unit is too large. The adjustable 220-270mm travel window is perfect for machines handling varying product sizes, allowing operators to dial in the exact retract distance on the fly instead of machining custom spacers. For any stroke at or above 300mm, an external guide is recommended to prevent rod side-loading, though this 270mm stroke remains well within standard limits.
When specifying an ISO 15552 replacement, confirm the 100mm bore, 270mm nominal stroke, 50mm adjuster, PT port thread, and the required -S magnet. Remember that the rear adjuster acts only as a travel stop and the air cushion handles deceleration; neither will hold a load without live air pressure. For true load-holding, consider an external rod lock or the AirTAC SAIL series.
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 SAIJ100 Adjustable Cylinder SAIJ100X270-50S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw lets you shorten the 270mm nominal stroke by up to 50mm, creating a usable travel window of 220-270mm. This allows you to set the exact retract end-position at commissioning without adding external stops.
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