Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-10
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-10 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 SAIJ200AX425-10
The AirTAC SAIJ200X425-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits up to 10 mm of end-position trimming. This yields a usable travel window of 415 to 425 mm, allowing precise calibration without physically swapping the actuator. Driven by a robust 40 mm SUS420J2 stainless steel rod, it delivers a substantial 15708 N of push force at 0.5 MPa, scaling to 28274 N at 0.9 MPa.
Equipped with PT tapered G3/4 ports, this 200 mm bore unit operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches, though this specific configuration omits the internal magnet. The rear stopper mechanism acts solely as a travel limiter to fine-tune the retract stroke during commissioning, not as a load-holding brake.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-10 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-10 |
|---|---|
| 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 SAIJ200AX425-10
| 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 SAIJ200AX425-10 Is Used
Heavy Press Calibration
Dial in the exact 415-425 mm end-stop during heavy press commissioning without machining external spacers or changing the actuator.
Product Changeover
Quickly trim the retract position by up to 10 mm on automated lines when switching between product variants of slightly different heights.
Large Assembly Positioning
Leverage the 15708 N push force at 0.5 MPa to move heavy pallets into a precise final position before a secondary operation begins.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-10 the Right Cylinder?
Selecting this 200 mm bore actuator makes sense when an application requires extreme thrust—such as 21991 N at 0.7 MPa—combined with on-the-fly stroke calibration. If the full 425 mm travel is unnecessary, stepping down to a 160 mm bore provides 14074 N at 0.7 MPa and a shorter footprint, though this SAIJ model is preferred when dialing in exact end-stops during machine setup. Because the 425 mm stroke exceeds 300 mm, the 40 mm rod and M36x2 thread still require an external guide to prevent excessive side-loading on the piston.
When specifying a replacement, ensure you match the 200 mm bore, 425 mm stroke, 10 mm adjustment range, PT G3/4 ports, and the SUS420J2 rod material. The mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 footprints. For applications requiring the load to be held without live air pressure, note that this cylinder's adjuster and air cushions cannot function as a lock; consider the AirTAC SAIL or BSAI series instead.
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 SAIJ200AX425-10 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At 0.9 MPa, the push force increases to 28274 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 425 mm stroke by up to 10 mm, creating a 415-425 mm travel window. It fine-tunes the end position but does not lock the load without continuous air pressure.
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