Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-100S 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 SAIJ100BX450-100S
The AirTAC SAIJ100X450-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 350 to 450 mm. It delivers a robust 3927 N push force at 0.5 MPa, scaling up to 7068 N at 0.9 MPa, making it suitable for heavy-duty positioning tasks. The integrated -S magnet enables precise tracking with CMSE reed and DMSE electronic sensors.
This model features a SUS304 stainless steel rod for superior corrosion resistance and carries a G1/2 port. The rear stopper mechanism allows you to dial in the exact retract position during commissioning without adding external stops. Remember that this adjuster acts strictly as a travel stop, not a lock, so the cylinder cannot hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-100S |
|---|---|
| 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 SAIJ100BX450-100S
| 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 SAIJ100BX450-100S Is Used
Product Size Changeover
Quickly dial the stroke back by up to 100 mm when switching a packaging line to a different carton size, avoiding physical cylinder swaps.
Heavy-Duty Positioning
Leverage the 7068 N push force at 0.9 MPa to move heavy pallets or fixtures, using the rear screw to fine-tune the exact stopping point.
Machine Commissioning
Trim the 450 mm travel window during initial setup to perfectly sync end-of-stroke positions with adjacent machine tooling.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-100S the Right Cylinder?
Choose this 100 mm bore when an 80 mm cylinder (providing 2513 N push at 0.5 MPa) lacks the thrust for your application, but a 125 mm bore is excessive. The 100 mm adjustment range is ideal for machines requiring significant product-size changeovers, allowing you to trim the stroke dynamically rather than swapping out a fixed-length SAI cylinder. Because the nominal stroke is 450 mm, ensure you use an external guide to support the load and mitigate side-loading on the rod.
For a true ISO 15552 replacement match, verify the 100 mm bore, 450 mm stroke, PT tapered port threads, and the -S magnet option. If your application requires the load to be held mechanically without continuous air pressure, this cylinder is insufficient; instead, consider the SAIL pneumatic lock or BSAI clamp-lock series, as the SAIJ adjuster only decelerates the stroke end.
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 SAIJ100BX450-100S FAQ
The rear adjuster screw lets you shorten the effective travel from the nominal 450 mm down to 350 mm, giving you a 100 mm window to fine-tune the retract end position without external stops.
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
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Standard models usually ship in 3-4 days.
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