Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50
The AirTAC SAIJ100X450-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 400-450mm usable travel window, allowing you to dial back the 450mm nominal stroke by up to 50mm during commissioning without adding external stops. Equipped with a SUS304 stainless steel rod and PT tapered ports, it generates 5497N of push force and 3681N of pull force at 0.7 MPa.
This adjustable-stroke design is built on an extruded aluminum barrel with sensor grooves on both sides. It supports AirTAC CMSE reed and DMSE electronic sensors if a magnet is specified later. The rear adjuster acts purely as a travel stop for end-position tuning; it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 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 SAIJ100BX450-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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 SAIJ100BX450-50 Is Used
Machine Setup Changeover
Fine-tune the 400-450mm travel window during product line changeovers to hit exact end positions without physically swapping the cylinder.
Variable End Stops
Dial in the exact rejection distance on a heavy-duty conveyor by adjusting the rear stopper screw up to 50mm to accommodate different package sizes.
Heavy Assembly Press
Leverage the 5497N push force at 0.7 MPa for pressing components, using the 50mm adjustment range to set precise material deflection limits.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50 the Right Cylinder?
Choose this 100mm bore cylinder when an application requires heavy thrust (5497N at 0.7 MPa) alongside variable end-stop positioning. If your setup needs less force, stepping down to an 80mm bore yields 3518N of push force at 0.5 MPa. The 50mm adjustment range is ideal for product-size changeovers on a line, whereas a fixed SAI cylinder lacks this commissioning flexibility.
Because the 450mm stroke is substantial, an external guide is recommended to prevent excessive side-loading on the SUS304 rod. For load-holding without continuous air pressure, this cylinder is insufficient; the rear stop is not a lock, so you should explore an SAIL or BSAI series cylinder instead. It is dimensionally interchangeable with ISO 15552 cylinders and uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100BX450-50 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 3681N of pull force. The maximum force at 1.0 MPa is 801 kgf.
The rear adjuster screw allows you to shorten the 450mm nominal stroke by up to 50mm, creating a 400-450mm usable travel window. The adjuster acts as a mechanical stop to fine-tune the retract end position and is not a lock.
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