Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-30S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX400-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 400mm 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
- Stroke400 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 SAIJ100BX400-30S
Its integrated stainless steel SUS304 rod provides excellent corrosion resistance for harsh environments. By turning the rear screw, you achieve a usable travel window of 370-400 mm, allowing precise end-position tuning without swapping the entire actuator.
This 100mm bore actuator features a PT tapered port and operates at speeds between 30-800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, and the included magnet (-S) directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback. It utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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 SAIJ100BX400-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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 SAIJ100BX400-30S Is Used
Product Changeover
Quickly reconfigure the 370-400mm travel window for different product lengths on a packaging line without changing the cylinder.
End-Stop Calibration
Fine-tune the retract position during machine commissioning to achieve exact clamping or pressing distances.
Corrosive Assembly
Leverage the SUS304 stainless rod for robust actuation in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-30S the Right Cylinder?
The 30mm adjustment range is ideal for product-size changeovers on a line, letting you dial in the 370-400mm travel window during commissioning rather than machining external stops. For an ISO 15552 replacement match, verify the 100mm bore, 400mm stroke, PT port, and -S magnet.
Because the nominal stroke is 400mm, the 25mm piston rod and M20x1.25 thread will experience leverage forces under load; an external guide is recommended to prevent excessive side-loading. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air. For true pneumatic locking without pressure, consider the SAIL or BSAI series instead.
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 SAIJ100BX400-30S FAQ
If your application requires more thrust, stepping up to a 125mm bore yields 6136N at the same pressure.
The rear adjuster screw acts as a mechanical stop, allowing you to trim the effective travel back by up to 30mm. This creates a 370-400mm usable window for fine-tuning at commissioning. Note that it is a stop, not a lock, and will not hold the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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