Airtac SAIJ200 Adjustable Cylinder SAIJ200X475-50
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X475-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 475mm 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
- Stroke475 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 SAIJ200X475-50
The AirTAC SAIJ200X475-50 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, featuring a 475 mm nominal stroke that can be mechanically dialed back by up to 50 mm. This rear-mounted stopper screw establishes a precise 425-475 mm usable travel window, allowing operators to fine-tune end positions during commissioning or product changeovers without physically swapping the actuator.
Constructed with an extruded aluminum barrel rather than a traditional tie-rod design, this actuator maintains standard ISO 15552 mounting dimensions for broad interchangeability. The 40 mm carbon steel rod and M36x2 thread provide exceptional rigidity, while the G3/4 PT port ensures high airflow for its 30-500 mm/s operating speed range. The rear adjuster acts purely as a travel stop to set deceleration limits alongside the dual air cushions; it is not a locking mechanism and cannot hold loads without continuous air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X475-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X475-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 475 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 SAIJ200X475-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×475 | 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 SAIJ200X475-50 Is Used
Heavy Press Positioning
Fine-tune the 425-475 mm travel window to set precise bottoming positions for large stamping or pressing operations without changing the actuator.
Multi-Size Assembly Lines
Easily accommodate varying product dimensions on a single heavy-duty conveyor by dialing the rear stopper back during product changeovers.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X475-50 the Right Cylinder?
Selecting this 200 mm bore actuator is ideal when an application requires extreme thrust—up to 15708 N at 0.5 MPa—combined with variable end-stop positioning. Because the 475 mm stroke is substantial, always support the load with an external guide to prevent excessive side-loading on the 40 mm rod, despite its robust diameter.
An adjustable stroke is specifically chosen over a fixed-stroke SAI cylinder when a production line runs multiple product sizes, requiring on-the-fly mechanical adjustments rather than cylinder replacement. For load-holding without live air pressure, this standard cylinder will not suffice; you must integrate an external rod lock or pilot-operated check valve, or select a specialized SAIL or BSAI model. To match this exact ISO 15552 replacement, specify: 200 mm bore, 475 mm stroke, 50 mm adjustment, G3/4 PT port, carbon steel rod, and no 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 SAIJ200X475-50 FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw allows you to shorten the 475 mm nominal stroke by up to 50 mm, creating a 425-475 mm usable travel window. This stopper sets the end position but does not lock the load; air cushions handle deceleration.
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