Airtac SAIJ100 Adjustable Cylinder SAIJ100AX350-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX350-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 350mm 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
- Stroke350 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 SAIJ100AX350-20
It features a SUS420J2 stainless steel rod and PT tapered port threads. The built-in adjusting screw allows you to fine-tune the effective travel within a 330-350mm window, providing exact end-position calibration without swapping out the entire unit.
Because the nominal 350mm stroke is substantial, the 25mm diameter rod and M20x1.5 rod thread provide necessary rigidity, though an external guide is still recommended to manage side loads on long extensions. The rear stopper simply sets the retraction limit and works alongside the standard air cushions to decelerate the load; it does not hold the position without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX350-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX350-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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 SAIJ100AX350-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 SAIJ100AX350-20 Is Used
Precision End-Stop Tuning
Dial in the exact retraction point within the 330-350mm window during machine commissioning to achieve precise positioning without mechanical shims.
Product Changeover
Quickly adjust the stroke by up to 20mm on packaging lines when switching to different product sizes, minimizing downtime.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX350-20 the Right Cylinder?
Select this 100mm bore cylinder when an application requires high thrust combined with variable end-stops, such as accommodating product size changes on a line without bolting on external stops. If your setup needs less force, stepping down to an 80mm bore yields 3518N at 0.7 MPa, whereas moving up to a 125mm bore provides 8590N. For load-holding without continuous air pressure, a plain SAIJ is insufficient—you should look at the SAIL or BSAI locking variants instead.
When matching ISO 15552 replacements, verify the 100mm bore, 350mm stroke, -20mm adjustment range, PT port threads, and the SUS420J2 rod material. Note that SAIJ supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. As this unit lacks the -S magnet option, it cannot host CMSE or DMSE 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 SAIJ100AX350-20 FAQ
The rear adjuster acts as a mechanical stop that trims the effective travel, creating a usable 330-350mm stroke window. It decelerates the load alongside the air cushion but does not lock the position without live air pressure.
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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.
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