Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-30 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke475 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-30
The AirTAC SAIJ200X475-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 445-475 mm usable travel window by allowing you to trim the 475 mm nominal stroke back by up to 30 mm. This massive 200 mm bore generates 15708 N of push force at 0.5 MPa, making it ideal for heavy-duty press applications.
Built with a SUS420J2 stainless steel rod for superior corrosion resistance and PT tapered ports, it operates at 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides. The rear adjuster acts purely as a travel stop to fine-tune end positions without adding external stops.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-30 |
|---|---|
| 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-30
| 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 SAIJ200AX475-30 Is Used
Heavy Press Tuning
Dial in the exact 445-475 mm end position during heavy press setup to accommodate material thickness variations without changing the tooling.
Large Assembly Lines
Adjust the retract stop on the fly during product changeovers to safely position massive subcomponents on large-scale manufacturing lines.
Heavy Forming Stops
Fine-tune the bottoming position for heavy metal forming operations, using the rear stopper to set precise travel limits during commissioning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-30 the Right Cylinder?
Select this 200 mm bore cylinder when your application requires extreme force, stepping up from a 160 mm bore that yields 10053 N at 0.5 MPa. The 30 mm rear adjuster is perfect for fine-tuning the end position during heavy machine commissioning, avoiding the need to physically swap a large cylinder or bolt on external stopper blocks. For load-holding without live air pressure, this cylinder is insufficient; you must specify an SAIL air-released lock, a BSAI clamp-lock, or an external pilot-operated check valve, as the adjuster and air cushions are not brakes.
To replace an ISO 15552 cylinder, match the 200 mm bore, 475 mm stroke, 30 mm adjustment, PT port thread, and desired mounting from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is 475 mm, the 40 mm rod diameter and M36x2 thread provide rigidity, but long unsupported strokes still require an external guide to prevent side-load damage.
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 SAIJ200AX475-30 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it delivers 3204 kgf.
The rear adjuster screw allows you to shorten the 475 mm nominal stroke by up to 30 mm, creating a 445-475 mm travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without live air.
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