Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-10S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX400-10S 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 SAIJ100BX400-10S
The AirTAC SAIJ100X400-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a 390 to 400 mm usable travel window for precise end-position tuning. The extruded aluminum barrel features sensor grooves on both sides, and this -S variant includes a magnet for direct compatibility with AirTAC CMSE reed and DMSE electronic solid-state switches.
This model features a SUS304 stainless steel rod (code B) for superior corrosion resistance and carries a robust M20x1.5 rod thread. It uses PT tapered port threads (G1/2 port size) and includes variable air cushions at both ends to manage deceleration. The rear adjuster acts purely as a mechanical stop to dial in the 10 mm trim range during commissioning, meaning it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-10S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-10S |
|---|---|
| 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 SAIJ100BX400-10S
| 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 SAIJ100BX400-10S Is Used
Precision End-Stop Tuning
Dial in the exact 390 to 400 mm retraction point during machine commissioning to achieve precise seating of heavy components without machining custom spacers.
Product Size Changeovers
Quickly adjust the stroke end-position by up to 10 mm on packaging lines when switching between slightly different product dimensions, minimizing downtime.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-10S the Right Cylinder?
An adjustable stroke is highly beneficial here over a fixed SAI cylinder, allowing you to fine-tune the 400 mm travel end-point by up to 10 mm during product changeovers without adding external stops. For load-holding without continuous air pressure, you must integrate an external pilot-operated check valve or select a different type like the SAIL (air-released lock) or BSAI (clamp-lock), as the SAIJ adjuster is only a travel stop. When matching ISO 15552 replacements, verify the 100 mm bore, 400 mm stroke, 10 mm adjustment, PT G1/2 ports, and the -S magnet requirement.
Because the 400 mm stroke is substantial, the 25 mm rod diameter and M20x1.5 thread provide rigidity, but an external guide is still recommended to prevent excessive side-loading on the piston rod over long unsupported travels. Mounting options for this profile cylinder are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets found on some other series.
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 SAIJ100BX400-10S FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to trim the effective stroke back from the nominal 400 mm down to 390 mm. This creates a 390-400 mm travel window for fine-tuning the end position at commissioning without swapping the cylinder.
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