Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40S 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 SAIJ100BX450-40S
The AirTAC SAIJ100X450-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial in the effective travel anywhere within a 410-450 mm window. This specific configuration features a SUS304 stainless steel rod for superior corrosion resistance and includes a piston magnet for position sensing. Delivering a robust 3927 N of push force at 0.5 MPa, it is built for demanding industrial environments.
The integrated rear stopper lets you fine-tune the retract end position during commissioning or product changeovers without swapping out the cylinder or adding external stops. It utilizes a PT tapered port thread and variable air cushions at both ends to decelerate the load smoothly. The extruded aluminum barrel includes sensor grooves on both sides, directly supporting AirTAC CMSE reed and DMSE electronic switches for flexible mounting.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40S |
|---|---|
| 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 SAIJ100BX450-40S
| 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 SAIJ100BX450-40S Is Used
Product Changeover
Rapidly adjust the 410-450 mm retract stop during line changeovers to accommodate different package lengths without disassembling the pneumatic setup.
End-Position Tuning
Fine-tune the exact end-of-stroke location during machine commissioning to perfect a pressing or clamping operation without external shims.
Variable Stops
Act as an adjustable diverter or stop gate on a conveyor line, where the exact positioning distance needs periodic adjustment.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-40S the Right Cylinder?
Selecting this 100 mm bore cylinder makes sense when your application requires the 3927 N push force at 0.5 MPa and a 450 mm travel, but exact end-positioning needs field flexibility. If you need less force, stepping down to an 80 mm bore provides 2513 N; if you need more, a 125 mm bore yields 6136 N. The 40 mm adjustment range is ideal for optimizing machine setup across varying product sizes. Remember that the rear adjuster acts only as a travel stop, not a load lock. For position holding without live air pressure, consider the SAIL or BSAI series instead.
Because this cylinder uses a 450 mm stroke, the 25 mm rod and M20x1.5 rod thread should be paired with an external guide to prevent excessive side-loading on the piston. To match this exact configuration, specify the 100 mm bore, 450 mm stroke, 40 mm adjustment, PT ports, SUS304 (B) rod material, and the -S magnet. It uses the reduced SAIJ mounting set: 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 SAIJ100BX450-40S FAQ
At a standard operating pressure of 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke from the nominal 450 mm down to 410 mm. This provides a 40 mm tuning window for end-position setup, but it does not lock the load without continuous air pressure.
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