Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-75S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X400-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 400mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-75S
It features an extruded aluminum barrel with sensor grooves on both sides, and this -S variant includes a magnet for position detection via AirTAC CMSE reed and DMSE electronic solid-state sensors.
A rear adjusting screw allows you to dial back the 400 mm nominal stroke by up to 75 mm, creating a highly flexible 325-400 mm usable travel window. This built-in stopper lets you fine-tune the retract end position during commissioning or product changeovers without swapping the cylinder or fabricating external mechanical stops. The robust 40 mm carbon steel rod and M36x2 thread provide exceptional rigidity, while the G3/4 PT tapered ports ensure high airflow for this large-bore actuator.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 400 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×400 | 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 SAIJ200X400-75S Is Used
Product Changeover
Quickly adjust the retract end-stop by up to 75 mm during line changeovers to accommodate different large-scale product dimensions without changing the actuator.
Automated Heavy Clamping
Secures massive workpieces during machining, using the 40 mm carbon steel rod and M36x2 thread to handle high mechanical stress and side loads.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-75S the Right Cylinder?
Selecting this 200 mm bore model is appropriate when your application requires extremely high thrust, such as heavy pressing or large-scale clamping. Conversely, if you need even greater power, this 200 mm bore provides the maximum standard thrust available in the SAIJ range.
The adjustable stroke is chosen over a fixed-stroke SAI cylinder when precise end-position tuning is required at machine setup or when accommodating varying product sizes on the same line. Note that the rear adjuster acts only as a travel stop and deceleration aid; it does not hold the load without live air pressure. For true fail-safe load holding, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock. Because the 400 mm stroke is substantial, always use an external guide to prevent side-loading damage to the 40 mm rod, and utilize the available SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) for your specific ISO 15552 footprint needs.
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 SAIJ200X400-75S FAQ
It can reach a maximum push force of 3204 kgf at 1.0 MPa.
The rear adjuster screw acts as an external stopper that shortens the effective stroke from the 400 mm nominal length. You can trim the travel back by up to 75 mm, providing a usable end-position window between 325 mm and 400 mm for fine-tuning during commissioning.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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