Airtac SAIJ100 Adjustable Cylinder SAIJ100AX400-100
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX400-100 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 SAIJ100AX400-100
It features an extruded aluminum barrel with sensor grooves on both sides and a rear-mounted stroke adjuster. With a nominal 400mm stroke and a 100mm adjustment range, this unit provides a versatile 300-400mm usable travel window for precise end-position tuning.
This model is equipped with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and PT tapered port threads. The rear stopper screw allows you to dial back the extension distance during commissioning or product changeovers without swapping the cylinder or adding external stops. The adjuster acts strictly as a travel stop and works alongside the standard variable air cushions at both ends to control deceleration.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX400-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX400-100 |
|---|---|
| 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 SAIJ100AX400-100
| 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 SAIJ100AX400-100 Is Used
Product Changeover
Quickly dial in the 300-400mm travel window using the rear stopper when switching between product sizes on the line, avoiding mechanical rebuilds.
Machine Setup
Fine-tune the extension end position during initial commissioning to perfect the tooling approach without fabricating custom external spacers.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX400-100 the Right Cylinder?
Because the nominal stroke is 400mm, you must account for side-loading on the 25mm rod; an external guide is recommended to support the load over this extended travel. For load-holding without live air pressure, note that the rear stopper is not a lock—you would need to look at the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 100mm bore, 400mm nominal stroke, 100mm adjustment code, G1/2 port, and your required mounting style. The SAIJ supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Since this configuration lacks the -S magnet, it will not work with CMSE or DMSE sensors without a model change.
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 SAIJ100AX400-100 FAQ
If you increase the operating pressure to 0.9 MPa, the push force reaches 7068N.
The rear adjuster screw lets you shorten the effective travel from the 400mm nominal stroke down to 300mm. It acts as a mechanical stop to set the exact end position, but it does not lock the load without continuous air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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