Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-50S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X280-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 280mm 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
- Stroke280 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 SAIJ200X280-50S
The AirTAC SAIJ200X280-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated -S magnet enables position sensing across the dual-side sensor grooves, functioning seamlessly with AirTAC CMSE reed switches and DMSE solid-state electronic sensors.
This specific SKU features a 280 mm nominal stroke that can be mechanically trimmed back by up to 50 mm, providing a 230-280 mm usable travel window. This built-in rear stopper allows operators to fine-tune the exact end position during commissioning or product changeovers without physically swapping the cylinder or fabricating external stops. The robust 40 mm carbon steel piston rod and M36x2 thread provide high structural integrity, while the PT tapered port threads ensure a reliable, leak-free pneumatic connection.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 280 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 SAIJ200X280-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×280 | 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 SAIJ200X280-50S Is Used
Heavy Press Fine-Tuning
Dial in the exact 230-280 mm travel end-stop during heavy press commissioning without altering the machine frame or adding external mechanical stops.
Product Size Changeover
Quickly adapt the cylinder's effective stroke on automated lines when transitioning between different product sizes, utilizing the 50 mm rear adjustment window.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-50S the Right Cylinder?
However, the 200 mm bore is necessary when maximum thrust is paramount. Choose the SAIJ adjustable-stroke design over a fixed SAI model when your machine setup demands variable end-stops or precise end-position tuning during commissioning. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL pneumatic lock, BSAI clamp-lock, or an external rod lock. To replace an ISO 15552 cylinder, match the 200 mm bore, 280 mm stroke, 50 mm adjustment, PT port, and -S magnet.
Because this unit features a 280 mm stroke, it is essential to evaluate potential side-loading. While the 40 mm rod handles substantial loads, long unsupported strokes require an external guide to prevent premature seal wear and ensure smooth operation. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets to streamline heavy-duty profile cylinder installations.
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 SAIJ200X280-50S FAQ
The rear adjuster acts as an external mechanical stop that shortens the effective stroke. For this model, the 280 mm nominal stroke can be dialed back by up to 50 mm, resulting in a usable travel window of 230-280 mm. It only sets the travel end and does not lock the load without live air pressure.
It can deliver a maximum thrust of 15708 kgf (approx 15708N at 1.0 MPa) depending on your supply 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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