Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-40S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX400-40S 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 SAIJ100BX400-40S
The AirTAC SAIJ100X400-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 360 to 400 mm. This variant includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet for position sensing.
The rear mechanical stopper allows fine end-position tuning during commissioning without swapping cylinders or adding external stops. It utilizes a PT tapered port thread and variable air cushions at both ends to manage deceleration. Note that the adjuster acts as a travel stop, not a lock, so the load requires live air to maintain position.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-40S |
|---|---|
| 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 SAIJ100BX400-40S
| 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 SAIJ100BX400-40S Is Used
Product Changeover Lines
Dial in the 360-400 mm travel window during format changes without swapping hardware.
Heavy Press Tuning
Fine-tune the retract end-position on the fly to accommodate varying material thicknesses.
Variable Stop Positioning
Use the rear stopper to set precise, repeatable end-stops for different pallet sizes.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-40S the Right Cylinder?
The 40 mm adjustment range is ideal for product-size changeovers on a line, offering variable end-stops instead of fixed SAI travel. For load-holding without live air pressure, consider an SAIL or BSAI cylinder instead.
At 400 mm of stroke, the 25 mm rod carries good side-load capacity, but an external guide is still recommended for unsupported loads. This model is dimensionally interchangeable per ISO 15552. Replacement specs: 100 mm bore, 400 mm stroke, 40 mm adjustment, PT G1/2 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and -S magnet for CMSE reed or DMSE electronic sensors.
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 SAIJ100BX400-40S FAQ
At 0.7 MPa the push force increases to 5497 N.
The rear adjuster acts as a mechanical stop, allowing you to trim the 400 mm nominal stroke back by up to 40 mm, creating a 360-400 mm travel window. It is a stop, not a lock, so live air is needed to hold the load.
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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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