Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40 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 SAIJ200AX350-40
The AirTAC SAIJ200X350-40 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty applications. It integrates a rear stroke adjuster that permits you to trim the effective travel, providing a 310-350 mm usable window from the 350 mm nominal stroke. Delivering 15708 N of push force at 0.5 MPa, it handles substantial loads with precision.
This unit features a robust 40 mm piston rod with an M36x2 thread, offering high resistance to side loads, though the 350 mm stroke still necessitates an external guide to prevent rod bending. The rod is constructed from SUS420J2 stainless steel for superior corrosion resistance, and air is supplied via a PT G3/4 tapered port.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40 |
|---|---|
| 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 SAIJ200AX350-40
| 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 SAIJ200AX350-40 Is Used
Heavy Press Tuning
Fine-tune the 310-350 mm travel window during machine commissioning to set precise heavy-duty press end-positions without adding external mechanical stops.
Product Changeover
Quickly adapt the cylinder stroke by up to 40 mm on the factory floor when switching between different product sizes on the same line.
High-Force Positioning
Leverage the 15708 N push force at 0.5 MPa to move heavy pallets or tooling fixtures, relying on the 40 mm SUS420J2 stainless rod for rigidity.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40 the Right Cylinder?
Selecting this 200 mm bore cylinder is ideal when your machinery requires extreme thrust—up to 15708 N at 0.5 MPa or 21991 N at 0.7 MPa. If your application demands less force, stepping down to a 160 mm bore yields 10053 N at 0.5 MPa, which may improve cycle times and reduce air consumption. The 40 mm rear adjuster is chosen over a fixed-stroke SAI when you need variable end-stops for product changeovers without physically swapping the cylinder.
Because the stroke is 350 mm, you must use an external guide to support the load and prevent side-load damage to the rod and seals. The rear adjuster acts strictly as a travel stop for end-position tuning; it does not hold the load or lock the cylinder in place without live air pressure. For true fail-safe load holding, consider the SAIL or BSAI series instead. This model uses a PT G3/4 port, M36x2 rod thread, and supports mounting accessories from the SAIJ subset: 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 SAIJ200AX350-40 FAQ
At 0.5 MPa operating pressure, the 200 mm bore provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from 350 mm down to 310 mm. It only sets the end position and does not lock the load without live air pressure.
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