Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-40S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X50-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 50mm 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
- Stroke50 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 SAIJ200X50-40S
The AirTAC SAIJ200X50-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 50 mm nominal travel to a highly specific usable window between 10 and 50 mm. This makes it exceptionally suited for heavy-duty pressing or clamping tasks that require exact positioning.
Beyond its adjustable end-stop, this bore features a robust 40 mm carbon steel rod with an M36x2 thread, providing substantial rigidity to handle high side loads. It features PT tapered port threads (G3/4) and includes a -S magnet for electronic position sensing. You can pair it seamlessly with AirTAC DMSE solid-state or CMSE reed switches fitted into the dual-sided sensor grooves on the extruded aluminum barrel.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 50 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 SAIJ200X50-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×50 | 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 SAIJ200X50-40S Is Used
Heavy Press Tuning
Dial in the exact 10 to 50 mm travel window during heavy-duty stamping or pressing setups to accommodate different material thicknesses without changing hardware.
Product Changeover
Quickly adjust the rear stopper on automated assembly lines when switching out product sizes, saving downtime on the factory floor.
Variable End Stops
Establish precise, repeatable retract end-positions for massive 3204 kgf operations where fixed external stops are impractical to mount.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-40S the Right Cylinder?
The SAIJ200X50-40-S is specifically selected over a fixed-stroke SAI variant when a machine requires fine-tuning of the end-of-stroke position at commissioning or during product changeovers, without the need to physically swap out the cylinder or bolt on external stoppers.
When integrating this ISO 15552 dimensionally interchangeable cylinder, ensure your setup includes an external guide for the load, as even the large 40 mm rod requires external support to prevent binding under heavy loads. Furthermore, remember that the rear adjuster acts purely as a travel stop and the air cushions only manage deceleration; neither will hold a load in place without continuous live air pressure. For true fail-safe load holding, consider the AirTAC SAIL pneumatic lock series, the BSAI clamp-lock cylinder, or an external rod lock.
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 SAIJ200X50-40S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from its 50 mm nominal stroke down to a minimum of 10 mm, creating a 10-50 mm usable window. It allows precise end-position tuning without swapping the cylinder.
At its maximum rated pressure of 1.0 MPa, it can deliver up to 3204 kgf of thrust.
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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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