Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-75S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-75S
The AirTAC SAIJ200X400-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing with 15708 N at 0.5 MPa and reaching 21991 N at 0.7 MPa. The integrated -S magnet supports position sensing via AirTAC CMSE reed and DMSE electronic switches.
This specific SKU provides a 400 mm nominal stroke that can be fine-tuned backward by up to 75 mm, creating a 325-400 mm usable travel window. It features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and uses PT tapered port threading. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-75S |
|---|---|
| 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 | 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 SAIJ200AX400-75S
| 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 SAIJ200AX400-75S Is Used
Heavy Press Tuning
Fine-tune the 325-400 mm travel window during setup to precisely control the pressing depth of heavy industrial components without swapping cylinders.
Product Changeover Stops
Adjust the rear stopper on the fly to accommodate different pallet sizes on a high-thrust transfer line, utilizing the 21991 N push force at 0.7 MPa.
Large Mold Handling
Position large molds accurately using the SUS420J2 stainless steel rod for corrosion resistance, while CMSE and DMSE sensors confirm end-of-stroke arrival.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-75S the Right Cylinder?
Choose this 200 mm bore when an application requires extreme force that a 160 mm bore cannot provide; at 0.5 MPa, the 160 mm yields 10053 N push force, whereas this 200 mm bore outputs 15708 N. The adjustable stroke is selected over a fixed SAI cylinder when you need to dial in the exact retract end-position during commissioning or product changeover without adding external stops. Because the stroke is 400 mm, an external guide is recommended to support the load and prevent excessive side-loading on the 40 mm rod.
For a direct ISO 15552 replacement match, ensure you specify the 200 mm bore, 400 mm stroke, 75 mm adjustment, PT port thread, and the -S magnet. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. Mounting options are limited to 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 SAIJ200AX400-75S FAQ
This 200 mm bore cylinder generates a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm from the nominal 400 mm, providing a usable travel window of 325-400 mm. It functions as a mechanical stop to fine-tune the end position and is not a locking device.
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