Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-30
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X250-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm 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
- Stroke250 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 SAIJ200X250-30
The AirTAC SAIJ200X250-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty motion tasks. The integrated rear adjusting screw allows you to trim the effective travel, creating a usable 220-250 mm stroke window from the 250 mm nominal length. This enables fine end-position tuning at commissioning without swapping the cylinder or adding external stops.
Built with a robust 40 mm carbon steel rod and an M36x2 thread, this unit handles significant mechanical loads, though long unsupported strokes still require an external guide. The extruded aluminum barrel features sensor grooves on both sides, and the mounting interface utilizes a reduced SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2) omitting FB, CA, CB, and CR options. It operates at speeds of 30-500 mm/s and includes variable air cushioning at both ends to manage deceleration.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAIJ200X250-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SAIJ200X250-30 Is Used
Machine Changeover
Quickly adapt the 220-250 mm travel window during product size changes on a line without physically replacing the cylinder.
End-Stop Tuning
Fine-tune the retract end position at commissioning to perfect machine timing without adding external mechanical stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-30 the Right Cylinder?
Choose this 200 mm bore when you need extreme force that smaller bores cannot provide, such as stepping up from a 160 mm cylinder that yields 9425 N pull at 0.5 MPa. The 30 mm adjustment range is ideal for product changeovers on a line, letting you dial in the exact end-stop without machining new hard stops. For any stroke of 300 mm or more, an external guide is recommended to manage side loads, but at 250 mm here, the large 40 mm rod naturally resists deflection.
Remember that the rear adjuster acts as a travel stop, not a lock; it does not hold the load without live air pressure. If your application requires fail-safe load holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead. This cylinder is dimensionally interchangeable per ISO 15552, features PT tapered port threads, and uses standard carbon steel rod material without a 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 SAIJ200X250-30 FAQ
The rear adjuster screw acts as a stopper that lets you shorten the nominal 250 mm stroke by up to 30 mm, providing a usable travel window of 220-250 mm. This allows for precise end-position tuning without swapping cylinders.
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Standard models are processed and dispatched in 3-5 business days.
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