Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 375mm 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
- Stroke375 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75
The AirTAC SAIJ200X375-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa. Its 375 mm nominal stroke pairs with a 75 mm adjustment screw, creating a usable travel window of 300 to 375 mm for exact end-position tuning. The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration omits the magnet, meaning position sensing via CMSE or DMSE switches is not enabled out of the box.
This model utilizes a SUS420J2 stainless steel rod (code A) for superior corrosion resistance and features a PT tapered port thread. The rear adjuster acts purely as a mechanical stop to trim the retract distance during commissioning. It does not lock the load or hold position without live air pressure; for true load-holding requirements, an external rod lock or the AirTAC SAIL series is required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 375 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 SAIJ200AX375-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×375 | 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 SAIJ200AX375-75 Is Used
Heavy Press Tuning
Dial in the exact 300 to 375 mm travel window during heavy press commissioning without replacing the entire cylinder or adding external mechanical stops.
Product Size Changeover
Adjust the retract end-position on the fly when switching between large product variants on an automated assembly line, saving costly downtime.
Fixture Calibration
Fine-tune the end-stop distance on large pneumatic fixtures to accommodate tooling wear or slight variations in part dimensions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75 the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application requires extreme force, such as the 15708N push thrust available at 0.5 MPa, or up to 28274N at 0.9 MPa. If your machinery only needs 10053N of push force at 0.5 MPa, stepping down to the 160 mm bore reduces physical size and air consumption. The 75 mm adjustment range is ideal for product changeovers where the end-stop distance varies significantly, saving you from swapping out a fixed-stroke SAI cylinder or adding external stops. When specifying a replacement, match the 200 mm bore, 375 mm stroke, 75 mm adjuster, PT port thread, and the A rod material.
Because the 375 mm stroke is substantial, the 40 mm diameter rod and M36x2 thread still require external guidance to prevent side-loading damage on the unsupported piston. Furthermore, the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on other variants.
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 SAIJ200AX375-75 FAQ
At an operating pressure of 0.5 MPa, this 200 mm bore cylinder provides 15708N of push force and 15080N of pull force. At 0.9 MPa, the push force increases to 28274N.
The rear adjuster screw allows you to mechanically shorten the effective stroke by up to 75 mm from the nominal 375 mm, providing a usable travel window of 300 to 375 mm. This screw functions only as a travel stop and does not hold the load without continuous air pressure.
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