Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50
The AirTAC SAIJ200X350-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 300 to 350 mm, allowing you to dial back the nominal 350 mm stroke by up to 50 mm during commissioning. Delivering 15708 N of push force at 0.5 MPa, it handles heavy-duty positioning with precision.
This unit is built with a SUS420J2 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready for electronic or reed switches if a magnet is added later. The rear adjuster acts purely as a travel stop to fine-tune deceleration, not as a load-holding lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 350 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 SAIJ200AX350-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×350 | 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 SAIJ200AX350-50 Is Used
Heavy Press Tuning
Fine-tune the exact bottoming position of a large press during setup, using the 50 mm rear stopper to compensate for material thickness variations without changing the fixture.
Pallet Changeover
Adapt a conveyor diverter arm to handle different pallet sizes on the fly by adjusting the effective stroke within the 300-350 mm travel window during line changeover.
Large Assembly Stops
Set precise end-of-travel stops for heavy automotive component positioning, relying on the 15708 N thrust to move loads while tweaking the final resting position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50 the Right Cylinder?
Choose this 200 mm bore when you need immense thrust—15708 N push and 15080 N pull at 0.5 MPa—far exceeding the 10053 N push force of the smaller 160 mm bore. The 50 mm adjustment window is ideal for product changeovers on large equipment, letting you set variable end-stops without swapping cylinders or bolting on external stops. Since the 350 mm stroke is substantial, an external guide is recommended to prevent excessive side-loading on the 40 mm rod.
For an exact ISO 15552 replacement, match the 200 mm bore, 350 mm stroke, 50 mm adjustment, PT port threads, and SUS420J2 rod material. If your application requires the load to be held mechanically without live air pressure, this cylinder will not suffice; consider an AirTAC SAIL pilot-lock or BSAI clamp-lock cylinder instead, as the SAIJ adjuster only stops travel.
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 SAIJ200AX350-50 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 can deliver up to 3204 kgf of thrust.
The rear adjuster screw lets you shorten the 350 mm nominal stroke by up to 50 mm, creating a usable travel window of 300 to 350 mm. This stopper fine-tunes the end position and deceleration at commissioning but does not lock or hold the load without live air pressure.
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