Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40 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 SAIJ200AX375-40
The AirTAC SAIJ200X375-40 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a massive 21991N of push force at 0.7MPa, alongside a usable travel window of 335-375mm created by the 40mm adjustment screw. This built-in stopper allows you to fine-tune the retract end position at commissioning without swapping out the entire cylinder.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced resistance against corrosion and surface wear. As an extruded aluminum profile cylinder, it includes sensor grooves on both sides, and because no magnet is specified here, position sensing would require adding that option to support CMSE reed or DMSE electronic switches.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40 |
|---|---|
| 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 SAIJ200AX375-40
| 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 SAIJ200AX375-40 Is Used
Heavy Pressing Operations
Apply up to 28274N of push force at 0.9MPa for heavy assembly tasks, using the 40mm adjuster to precisely set the pressing depth without reprogramming machine stops.
Product Size Changeovers
Adapt quickly to varying product lengths on a conveyor line by dialing the travel window back from 375mm to 335mm, minimizing downtime between production runs.
Large Fixture Clamping
Secure heavy workpieces with high pull force, relying on the SUS420J2 stainless rod to withstand harsh industrial environments while fine-tuning the clamp position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-40 the Right Cylinder?
Choose this 200mm bore when a 160mm bore (delivering 14074N push at 0.7MPa) cannot supply enough thrust for heavy pressing or lifting. The 40mm adjustment range is ideal for product changeovers on a line, letting you dial in a new end-stop without adding external shims. 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 an external rod lock or the AirTAC SAIL series.
To match this exact ISO 15552 interchangeable cylinder, specify a 200mm bore, 375mm stroke, 40mm adjustment, PT tapered port threads, and mounting from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 375mm stroke is relatively long, the 40mm rod diameter and M36x2 thread provide rigidity, but an external guide is still recommended to prevent excessive side-loading on the rod.
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 SAIJ200AX375-40 FAQ
At 0.5MPa it provides 15708N push and 15080N pull force. At 0.7MPa, the push force increases to 21991N, and it reaches a maximum of 28274N at 1.0MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 40mm. This creates a usable travel window of 335-375mm, but it only decelerates the travel end and does not lock the load without continuous air pressure.
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