Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40 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 SAIJ100BX450-40
The AirTAC SAIJ100X450-40 is a double-acting ISO 15552 profile cylinder featuring a built-in rear stroke adjuster. It provides a 450 mm nominal stroke that can be fine-tuned backward by up to 40 mm, creating a precise 410-450 mm usable travel window for product changeovers without adding external stops. Delivering 7068 N of push force at 0.9 MPa, it is built to handle heavy actuation loads.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to directly mount CMSE reed or DMSE electronic sensors if position confirmation is later required. The robust 25 mm rod and M20x1.5 thread provide high mechanical strength for demanding industrial setups.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40 |
|---|---|
| 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 SAIJ100BX450-40
| 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 SAIJ100BX450-40 Is Used
Product Changeover
Dial in the 410-450 mm travel window during format changeovers to accommodate different package sizes without replacing the cylinder.
Commissioning Fine-Tune
Use the rear stopper to precisely trim the end-of-stroke position during machine setup, avoiding the need for bolted-on external stops.
Heavy Pressing
Leverage the 7068 N push force at 0.9 MPa for heavy-duty pressing and forming tasks that require exact end-position depth control.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40 the Right Cylinder?
Select this 100 mm bore cylinder when your application requires substantial thrust, stepping up from the 80 mm bore which provides 4523 N at 0.9 MPa. The adjustable rear stopper is ideal for commissioning fine-tuning and variable end-stop positioning, eliminating the need to swap out a fixed-stroke SAI cylinder when product sizes change. Because the 450 mm stroke is substantial, an external guide is recommended to prevent excessive side-loading on the rod.
For an exact ISO 15552 replacement, match the 100 mm bore, 450 mm stroke, 40 mm adjustment range, PT port thread, and SUS304 rod material. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider the SAIL or BSAI series instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ100BX450-40 FAQ
The rear adjuster allows you to shorten the effective travel by up to 40 mm from the 450 mm nominal stroke, providing a 410-450 mm usable window. It acts as a mechanical stop to fine-tune the end position and does not lock the load without live air pressure.
At 0.9 MPa operating pressure, the SAIJ100X450-40 delivers 7068 N of push force and 6625 N of pull force. It can achieve a maximum push force of 801 kgf at 1.0 MPa.
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