Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 375mm 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
- Stroke375 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-50
The AirTAC SAIJ200X375-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a robust 15708N push force at 0.5 MPa and features a 325 to 375 mm usable travel window, allowing you to trim the nominal 375 mm stroke by up to 50 mm. The extruded aluminum barrel includes sensor grooves on both sides for flexible positioning of CMSE or DMSE switches.
This specific SKU utilizes a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance and features PT tapered port threads. The rear stopper mechanism enables precise end-position tuning during commissioning or product changeover without swapping the entire cylinder, while the robust 40 mm rod diameter and M36x2 thread handle substantial side loads effectively.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 375 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 SAIJ200AX375-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×375 | 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 SAIJ200AX375-50 Is Used
Heavy Press Tuning
Fine-tune the exact bottom position of a heavy press over the 325-375 mm window during setup, ensuring perfect contact without adding external stopper blocks.
Product Changeover
Quickly adjust the retract end-position on automated lines when switching to a different product size, using the 50 mm rear adjuster to adapt the stroke on the fly.
Long-Stroke Guiding
Manage long-trroke positioning tasks where the 40 mm SUS420J2 rod handles high side loads, while an external guide rail prevents rod deflection over the 375 mm travel.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-50 the Right Cylinder?
Choose this 200 mm bore cylinder when your application demands the highest thrust classes, delivering 15708N push and 15080N pull at 0.5 MPa. If your force requirements are lower, stepping down to a 160 mm bore still provides 10053N push force, but this SAIJ200X375-50 is built for heavy-duty positioning. The 50 mm adjustment range is ideal for dialing in exact end-stops during machine setup, avoiding the need to bolt on external physical stops.
Because the 375 mm stroke is relatively long, an external guide is recommended to prevent excessive rod deflection and premature seal wear. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding without continuous air, consider an AirTAC SAIL or BSAI cylinder. This model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200AX375-50 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708N and a pull force of 15080N. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw allows you to shorten the effective travel from the nominal 375 mm down to 325 mm. This creates a 50 mm tuning window for setting exact end-positions at commissioning, but it functions only as a stop and does not lock the load without live air pressure.
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