Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-100
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX400-100 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 SAIJ100BX400-100
The AirTAC SAIJ100X400-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 100 mm. This creates a highly flexible 300-400 mm usable window, letting you dial in the exact retract position during commissioning without swapping hardware. It delivers robust thrust, pushing with 3927 N at 0.5 MPa and reaching 7068 N at 0.9 MPa.
This unit is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance and features PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. It utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-100 |
|---|---|
| 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 SAIJ100BX400-100
| 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 SAIJ100BX400-100 Is Used
Product Size Changeover
Quickly modify the retract distance by up to 100 mm when switching a packaging line to a different carton size, eliminating the need to swap out the entire cylinder.
Machine Setup Fine-Tuning
Precisely set the end position during initial commissioning to perfect the alignment of heavy mechanical stops without adding external spacers to the fixture.
Variable End-Stop Positioning
Adapt the stroke window on the fly for automated assembly equipment that must press or form components at slightly varying depths across different production runs.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX400-100 the Right Cylinder?
The 100 mm adjustment range is ideal for product lines running mixed sizes, allowing rapid changeover of the end-stop by up to 100 mm instead of physically replacing a fixed-stroke SAI cylinder. Because the nominal stroke is 400 mm, the 25 mm rod and M20x1.5 thread provide structural rigidity, but an external guide is recommended to prevent excessive side-loading over this long travel distance.
For exact ISO 15552 replacement matching, verify the 100 mm bore, 400 mm stroke, PT port threads, and the required mounting style. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ100BX400-100 FAQ
If pressure is increased to 0.9 MPa, the push force reaches 7068 N.
The rear adjuster acts as an external stopper, allowing you to shorten the 400 mm nominal stroke by up to 100 mm. This provides a usable travel window of 300-400 mm, which can be fine-tuned during setup. It is a stop, not a lock, and requires live air to maintain position.
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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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