Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 325mm 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
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50
The AirTAC SAIJ200X325-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 275-325 mm usable travel window, allowing you to dial back the 325 mm nominal stroke by up to 50 mm. This bore size delivers immense thrust, pushing 21991 N at 0.7 MPa and pulling 15080 N. The piston rod uses SUS420J2 stainless steel, offering high strength and corrosion resistance for heavy industrial environments.
Equipped with PT tapered ports (G3/4), this 200 mm bore model operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 325 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 SAIJ200AX325-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×325 | 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 SAIJ200AX325-50 Is Used
Heavy Stamping Alignment
Fine-tune the 275-325 mm travel window during setup to perfectly align large metal stamping presses without adding external mechanical stops.
Oversized Pallet Diverter
Adjusts the retract position on the fly to accommodate varying pallet sizes on a heavy-duty conveyor line, ensuring accurate diversion.
Automated Press Tuning
Dials in the exact end-of-stroke position during machine commissioning, absorbing shock with variable air cushions at both ends.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-50 the Right Cylinder?
Choose this 200 mm bore when your process requires extreme force, as it outputs 21991 N of push force at 0.7 MPa. If your application needs less force, stepping down to a 160 mm bore yields 14074 N of push force at 0.7 MPa. The adjustable-stroke design is selected over a fixed SAI cylinder when you need fine end-position tuning at commissioning or during product changeover without swapping the physical cylinder.
Because the stroke is 325 mm, an external guide is recommended to prevent excessive side-loading on the large 40 mm rod. The rear adjuster and built-in air cushions only decelerate the travel end; they do not function as a lock. For load-holding without live pressure, consider an AirTAC SAIL or BSAI cylinder. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552.
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 SAIJ200AX325-50 FAQ
At 0.7 MPa operating pressure, this 200 mm bore cylinder provides 21991 N of push force and 15080 N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 3204 kgf of push force.
The rear adjusting screw lets you shorten the effective stroke by up to 50 mm, creating a 275-325 mm usable travel window. It functions as a mechanical stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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