Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-50S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X325-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 325mm 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
- Stroke325 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 SAIJ200X325-50S
The AirTAC SAIJ200X325-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. Fitted with a carbon steel rod and a PT tapered G3/4 port, it is engineered for heavy-duty pneumatic positioning.
This specific SKU features a 325 mm nominal stroke that can be fine-tuned backward by up to 50 mm, creating a usable travel window of 275 to 325 mm. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE solid-state switches for precise end-of-travel detection.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 325 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 SAIJ200X325-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×325 | 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 SAIJ200X325-50S Is Used
Heavy Press Tuning
Dial in the exact 275-325 mm end position for heavy pressing or clamping tasks during machine setup and product changeover.
Variable End-Stop Adjustment
Fine-tune the retract end position on the fly without physically swapping out the cylinder or adding external stopper blocks.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-50S the Right Cylinder?
The adjustable 275-325 mm window is ideal for product changeovers on heavy machinery, letting you dial in the exact end position without swapping cylinders or adding external stops. Because the stroke is 325 mm, you must use an external guide to prevent excessive side-loading on the 40 mm rod.
When matching this for an ISO 15552 replacement, verify the 325 mm stroke, 50 mm adjuster, G3/4 PT ports, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR. Note that the rear adjuster acts only as a travel stop to set the end position; it does not hold the load without live air. For true load-holding without pressure, use an AirTAC SAIL or BSAI cylinder.
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 SAIJ200X325-50S FAQ
At its maximum 1.0 MPa pressure, it delivers up to 3204 kgf.
The rear adjuster screw allows you to shorten the 325 mm nominal stroke by up to 50 mm, giving an effective travel window of 275 to 325 mm. This stopper sets the travel end and deceleration, but it does not lock or hold the load 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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