Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX375-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 375mm 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
- Stroke375 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 SAIJ100BX375-30S
The AirTAC SAIJ100X375-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The built-in adjuster allows you to trim the nominal 375 mm stroke back by up to 30 mm, creating a precise 345-375 mm usable travel window for product changeovers without external stops.
This variant includes a SUS304 stainless steel rod for superior corrosion resistance and comes with a magnet for CMSE / DMSE sensors. It uses a PT G1/2 port and relies on variable air cushions at both ends for end-of-stroke deceleration. The rear adjuster acts strictly as a travel stop, meaning the cylinder cannot hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 375 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 SAIJ100BX375-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×375 | 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 SAIJ100BX375-30S Is Used
Variable End-Stop Positioning
Dial in the exact end-of-stroke position within the 345-375 mm window during machine setup, ensuring perfect alignment for heavy workpieces without swapping cylinders.
Product-Size Changeover
Quickly adapt a conveyor diverter or pusher mechanism to handle different package lengths on the fly by turning the rear adjuster to shorten the effective travel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S the Right Cylinder?
An adjustable stroke is selected over a fixed SAI when a machine requires fine end-position tuning during commissioning or product-size changes. Because the 375 mm stroke exceeds 300 mm, an external guide rail is strongly recommended to prevent rod side-loading and premature seal wear.
For load-holding without continuous air pressure, note that the rear stopper and cushions do not function as a lock; you must use an external rod lock, a pilot-operated check valve, or AirTAC SAIL / BSAI cylinders. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR mounts.
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 SAIJ100BX375-30S FAQ
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 375 mm stroke by up to 30 mm, providing a usable travel window of 345-375 mm. It is a travel stop, not a lock, so it cannot hold the load without live air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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