Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-40S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX550-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 550mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke550 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-40S
The AirTAC SAIJ100X550-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, providing a usable travel window of 510 to 550 mm. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific configuration incorporates a SUS304 stainless steel rod for superior corrosion resistance and utilizes a PT tapered port thread. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning; it does not hold the load without live air pressure. For position-holding requirements, an external pilot-operated check valve or a related SAIL lock cylinder is necessary.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×550 | 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 SAIJ100BX550-40S Is Used
Machine Changeover
Dial in the exact 510 to 550 mm travel window during product size transitions without physically replacing the cylinder.
Variable End-Stop Tuning
Fine-tune the retract end position during initial commissioning to perfectly align heavy workpieces.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX550-40S the Right Cylinder?
Select this adjustable-stroke model over a fixed SAI when your application requires precise end-position tuning during machine setup or product changeover without swapping cylinders or adding external stopper blocks. The 25 mm rod diameter and M20x1.5 rod thread provide substantial rigidity, but because the stroke is 550 mm, an external guide is strongly recommended to prevent excessive side-loading on the barrel.
When specifying a replacement, ensure you match the 100 mm bore, 550 mm nominal stroke, 40 mm adjustment range, PT G1/2 port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR variants.
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 SAIJ100BX550-40S FAQ
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke by up to 40 mm, creating a usable travel window of 510 to 550 mm. It does not lock the load without continuous air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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