Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75S 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 SAIJ200AX375-75S
The AirTAC SAIJ200X375-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust 15708N push force at 0.5MPa. By integrating a built-in magnet, it supports CMSE reed and DMSE electronic sensors directly via the dual-side barrel grooves. The SUS420J2 stainless steel rod provides enhanced corrosion resistance for demanding environments.
This specific SKU features a 375mm nominal stroke paired with a 75mm adjustment range, yielding a precise 300-375mm usable travel window. Rather than relying on external stops, the rear screw mechanism allows you to dial in the exact retract position during commissioning. It utilizes PT tapered G3/4 ports and includes variable air cushions at both ends to manage the substantial kinetic energy of this high-thrust class.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75S |
|---|---|
| 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 SAIJ200AX375-75S
| 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 SAIJ200AX375-75S Is Used
Variable Position Ejection
Set exact ejection distances between 300 and 375mm during product changeovers without physically swapping the cylinder or adding external stopper blocks.
Heavy Assembly Pressing
Leverage 15708N of thrust at 0.5MPa to seat large components, using the rear screw to fine-tune the pressing depth accurately at the retract end.
Machine Commissioning
Dial in the precise end-of-stroke position during initial setup to compensate for mechanical tolerances, ensuring the DMSE electronic sensors trigger reliably.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-75S the Right Cylinder?
Selecting this 200mm bore model is appropriate when your application demands up to 15708N of push force at 0.5MPa, or 21991N at 0.7MPa. If your force requirements are lower, stepping down to a 160mm bore yields 10053N at 0.5MPa, which may better suit medium-duty tasks. The adjustable 300-375mm travel window is ideal for product changeovers on a line where end-stop positions frequently vary.
Because the stroke is 375mm, the 40mm rod diameter and M36x2 thread must withstand significant side loads; for long unsupported strokes, adding an external guide rail is critical to prevent premature seal wear. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air—if true fail-safe load holding is required, consider the SAIL pneumatic lock or BSAI clamp-lock series. This SAIJ variant uses the reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
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 SAIJ200AX375-75S FAQ
The 375mm nominal stroke can be shortened by up to 75mm using the rear adjusting screw, creating a usable travel window of 300-375mm. This allows you to fine-tune the retract end position without changing the cylinder itself.
At 0.5MPa operating pressure, it provides 15708N of push force and 15080N of pull force. At 0.7MPa, the push force increases to 21991N.
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