Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-20S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX40-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 40mm 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
- Stroke40 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 SAIJ100AX40-20S
The AirTAC SAIJ100X40-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 20-40 mm usable travel window from its 40 mm nominal stroke. This variant includes a -S magnet for position sensing and an A-grade SUS420J2 stainless steel rod for superior corrosion resistance.
The rear adjusting screw acts as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It is not a locking device and cannot hold loads without live air; for fail-safe load holding, consider the SAIL or BSAI series. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 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 SAIJ100AX40-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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 SAIJ100AX40-20S Is Used
Precision Pressing
Dial in the exact 20-40 mm travel window during machine setup to guarantee consistent pressing force without swapping out the cylinder.
Product Changeover
Quickly adjust the retract stop on the line when switching to a new product size, saving downtime on the factory floor.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX40-20S the Right Cylinder?
Select this 100 mm bore when a 80 mm bore (2513 N at 0.5 MPa) lacks the necessary thrust for rigid clamping. The adjustable stroke is chosen over a fixed SAI cylinder when you need precise end-position tuning during machine setup or product changeover. To match this ISO 15552 replacement exactly, specify the 100 mm bore, 40 mm stroke, 20 mm adjustment, PT tapered port threads, and the -S magnet option.
Because the 40 mm stroke is short, side-loading is minimal, but the robust 25 mm rod and M20x1.5 rod thread handle high mechanical stress well. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ100AX40-20S FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to trim the 40 mm nominal stroke back by up to 20 mm. This creates a usable travel window of 20-40 mm, which is ideal for fine-tuning the end position at commissioning.
At 0.9 MPa, the push force increases to 7068 N.
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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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