Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X250-40 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 SAIJ200X250-40
The AirTAC SAIJ200X250-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 250mm travel back by up to 40mm, creating a precise 210-250mm usable window. The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection integration.
This model uses a 40mm carbon steel piston rod with an M36x2 thread, paired with 50mm variable air cushions at both ends to manage heavy kinetic energy. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during setup, meaning it will not hold a load safely without continuous live air pressure. For secure load-holding requirements, an external rod lock or a SAIL pneumatic lock cylinder is required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-40 |
|---|---|
| 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 SAIJ200X250-40
| 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 SAIJ200X250-40 Is Used
Heavy Press Changeover
Dial in the 210-250mm travel window during heavy press setup to accommodate different material thicknesses without changing the cylinder.
Large Assembly Positioning
Fine-tune the end-stop position on large assembly lines to ensure precise 15708N clamping force is applied exactly at the required depth.
Bulk Material Diverter
Adjust the retract stroke on the fly for heavy bulk material diverters to handle varying package sizes on the same conveyor line.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-40 the Right Cylinder?
Selecting this 200mm bore model is appropriate when your application requires substantial thrust, pushing 15708N at 0.5MPa or up to 28274N at 0.9MPa. The adjustable 210-250mm travel window is ideal for heavy machinery that undergoes product changeovers, allowing you to reposition the end-stop without physically swapping the cylinder or adding external shims.
When replacing an ISO 15552 cylinder, match the 200mm bore, 250mm nominal stroke, PT G3/4 port thread, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because this is a non-magnetic build, position sensing requires external methods rather than band-mounted switches. Furthermore, with a 250mm stroke, ensure external guides are used to prevent excessive rod side-loading, and never rely on the rear adjuster or air cushions as a fail-safe brake.
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 SAIJ200X250-40 FAQ
At the maximum 1.0MPa pressure, it can deliver up to 3204 kgf of push force.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the 250mm nominal stroke by up to 40mm, providing a usable travel window of 210-250mm. It is a travel stop only and does not lock or 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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