Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20 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 SAIJ200AX375-20
The AirTAC SAIJ200X375-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 355 to 375 mm usable travel window. Built with a 200 mm bore, it generates 15708 N of push force and 15080 N of pull force at 0.5 MPa, making it a robust choice for heavy-load actuation. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This configuration uses a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and features PT tapered port threads. The rear adjustment screw allows you to fine-tune the retract end position at commissioning without swapping the cylinder or adding external stops. It is important to note that this rear screw acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20 |
|---|---|
| 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 SAIJ200AX375-20
| 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 SAIJ200AX375-20 Is Used
Heavy Press Tuning
Dial in the exact 355-375 mm end position during machine setup to accommodate varying material thicknesses without changing out the entire actuator.
Product Size Changeover
Adjust the retract stop on the fly during production line changeovers to handle different product dimensions quickly and efficiently.
Guided Heavy Load Actuation
Move substantial payloads using the 15708 N push force while relying on an external guide to manage side-load on the 375 mm stroke.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20 the Right Cylinder?
Choose this 200 mm bore model when your application requires massive thrust, such as 15708 N at 0.5 MPa, and precise end-position tuning. If your force requirements are lower, stepping down to a 160 mm bore provides 10053 N of push force at 0.5 MPa, which may offer a more compact footprint. The 20 mm adjustment range is ideal for accommodating product size changes on a line, letting operators dial in the exact end-stop without mechanical modifications.
Because the 375 mm stroke is substantial, the 40 mm diameter rod and M36x2 thread must be paired with an external guide to prevent excessive side-loading on the barrel. For load-holding without continuous air pressure, this cylinder is not sufficient; you should consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. This SAIJ model supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ200AX375-20 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It operates at a speed range of 30-500 mm/s.
The rear adjuster screw allows you to shorten the effective stroke by up to 20 mm, creating a usable travel window of 355 to 375 mm. It acts as a travel stop and does not lock or hold the load without live air pressure.
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