Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 425mm 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
- Stroke425 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-75
The AirTAC SAIJ200X425-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 15708N push force at 0.5 MPa and a usable travel window of 350 to 425 mm, letting you dial in the exact end position without swapping hardware. The PT tapered port and G3/4 thread match the 200mm bore standard.
This heavy-duty unit omits FB and CA mounts, utilizing a specific SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). The SUS420J2 stainless steel rod (code A) resists corrosion while handling high side loads. Since no magnet is specified, position sensing requires external hardware rather than internal CMSE or DMSE switches.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 425 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 SAIJ200AX425-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×425 | 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 SAIJ200AX425-75 Is Used
Heavy Press Tuning
Fine-tune the 350-425mm travel window during heavy press commissioning to achieve exact bottom-dead-center positioning without machining custom spacers.
Product Size Changeover
Rapidly adapt automated machinery for varying product dimensions by dialing the rear stopper back up to 75mm, minimizing downtime between production runs.
Large Assembly Alignment
Leverage the 15708N push force to seat massive components, using the adjustable end-stop to gently compress assemblies into their final calibrated position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-75 the Right Cylinder?
Choose this 200mm bore when the 160mm class (10053N push at 0.5 MPa) is insufficient for your heavy loads. The 75mm adjustment window is perfect for product size changeovers on a line, allowing you to reposition the end stop rapidly during commissioning instead of adding external spacers. For any stroke of 425mm, an external guide is highly recommended to manage side loads and prevent rod bending.
The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure. If your application requires true load-holding during air loss, consider the SAIL (air-released lock) or BSAI (clamp-lock) cylinders. This SAIJ model is dimensionally interchangeable per ISO 15552, featuring a PT port, the specified mounting options, and no -S magnet.
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 SAIJ200AX425-75 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides a push force of 15708N and a pull force of 15080N. It can deliver a maximum push force of 28274N at 1.0 MPa.
The rear adjuster screw allows you to shorten the 425mm nominal stroke by up to 75mm, providing an effective travel range of 350 to 425mm. This stopper only sets the end position and does not lock the load without live air pressure.
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