Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-20S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X375-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 375mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke375 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 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 SAIJ200 Adjustable Cylinder SAIJ200X375-20S
The AirTAC SAIJ200X375-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 355 to 375 mm. Built with a carbon steel rod and a PT tapered port, it delivers massive thrust up to 28274N at 0.9 MPa, making it suitable for heavy-duty industrial tasks. The extruded aluminum barrel includes sensor grooves on both sides, and because this is an -S variant, it carries a magnet for position feedback via AirTAC CMSE reed or DMSE electronic switches.
This adjustable-stroke design allows you to fine-tune the retract end position at commissioning without swapping out the cylinder or adding external stops. It shares the exact mounting interface of ISO 15552 cylinders and uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the rear adjuster acts purely as a travel stop to set the end position; it is not a lock and cannot hold a load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 375 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 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 SAIJ200 Adjustable Cylinder SAIJ200X375-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | 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 SAIJ200 Adjustable Cylinder SAIJ200X375-20S Is Used
Heavy Press Tuning
Dial in the exact 355-375 mm end-stop during press setup to accommodate varying material thicknesses without external spacers.
Assembly Line Changeover
Quickly adjust the retract position by up to 20 mm during product size transitions on the line, reducing machine downtime.
Large Fixture Alignment
Fine-tune the end of travel on heavy-duty fixtures using the rear stopper, ensuring precise alignment before the final clamping action.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-20S the Right Cylinder?
Because the 375 mm stroke is relatively long, an external guide is recommended to prevent side-loading damage to the rod. For applications requiring the load to be held mechanically without air pressure, consider the SAIL or BSAI series instead of relying on this cylinder's adjuster. To match this ISO 15552 replacement exactly, verify the 200 mm bore, 375 mm stroke, 20 mm adjustment, PT port, and -S magnet.
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 SAIJ200 Adjustable Cylinder SAIJ200X375-20S FAQ
It reaches a maximum force of 3204 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back from the nominal 375 mm down to 355 mm. This allows for fine-tuning the end position during commissioning without replacing the cylinder.
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Standard models are processed and dispatched in 3-5 business days.
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