Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50S 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 SAIJ200AX350-50S
The AirTAC SAIJ200X350-50-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, delivering massive thrust up to 28274N at 0.9 MPa. It features a 350 mm nominal stroke that can be dialed back by up to 50 mm, creating a precise 300-350 mm usable travel window for exact end-position tuning. The extruded aluminum barrel includes dual sensor grooves, and the -S magnet enables position detection via CMSE reed or DMSE electronic switches.
Built for harsh environments, this variant uses a SUS420J2 stainless steel rod and PT tapered port threads. The 40 mm rod and M36x2 thread handle high side loads, but the 350 mm length still requires an external guide to prevent rod bending. The rear adjuster acts purely as a travel stop to fine-tune deceleration, not as a load lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50S |
|---|---|
| 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 SAIJ200AX350-50S
| 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 SAIJ200AX350-50S Is Used
Heavy Press Tuning
Dial in the exact 300-350 mm end position during heavy press commissioning without adding external mechanical stops.
Product Size Changeover
Quickly shift the travel window by up to 50 mm when switching product sizes on a high-force assembly line.
Large Mold Handling
Move heavy 200 mm bore molds with 28274N of thrust while fine-tuning the retraction point on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-50S the Right Cylinder?
Choose this 200 mm bore when you need extreme force, as it provides 21991N of push at 0.7 MPa; stepping down to a 160 mm bore drops that to 14074N. An adjustable stroke is ideal for machine changeovers, letting you trim the end-stop by 50 mm without swapping cylinders. For exact ISO 15552 replacement, match the 200 mm bore, 350 mm stroke, 50 mm adjustment, PT G3/4 ports, and -S magnet.
Because the stroke is 350 mm, an external guide is required to support the load and prevent side-load damage. The rear adjuster only sets the travel end and does not hold the load without live air; for fail-safe load holding, use an external rod lock or pilot-operated check valve.
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 SAIJ200AX350-50S FAQ
At 0.9 MPa, this 200 mm bore cylinder generates 28274N of push force and 15080N of pull force. Its maximum operating pressure is 1.0 MPa.
The rear adjuster screw lets you shorten the 350 mm nominal stroke by up to 50 mm, providing a usable travel window of 300 to 350 mm. It functions as a travel stop and does not lock the load without live air pressure.
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