Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 80mm 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
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40S
The AirTAC SAIJ200X80-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, engineered for heavy-duty applications. Outfitted with a SUS420J2 stainless steel rod and a magnetic piston for CMSE or DMSE sensors, it delivers a robust 15708 N push force at 0.5 MPa. The integrated rear stopper provides a usable travel window of 40 to 80 mm, allowing you to fine-tune the retract end-position without adding external stops.
This adjustable-stroke design is built on an extruded aluminum barrel with sensor grooves on both sides, not a tie-rod construction. The rear screw acts purely as a travel stop to dial in the exact end-position during commissioning or product changeover; it does not hold the load without live air pressure. For applications requiring true load-holding without continuous pneumatic pressure, AirTAC SAIL or BSAI series cylinders are the correct solutions.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 80 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 SAIJ200AX80-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×80 | 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 SAIJ200AX80-40S Is Used
Product Changeover
Dial in the exact retract end-stop from 40 to 80 mm during product size changes without swapping out the cylinder or adding external shims.
Heavy Pressing
Leverage the massive 15708 N push force at 0.5 MPa for heavy-duty assembly and pressing tasks requiring precise end-position tuning.
Position Calibration
Fine-tune the stroke during machine commissioning using the rear adjuster, ensuring the load stops perfectly without external stoppers.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40S the Right Cylinder?
Selecting this 200 mm bore size is appropriate when substantial thrust is needed, such as pressing or heavy lifting, providing 15708 N push force at just 0.5 MPa. If a smaller footprint is acceptable, stepping down to a 160 mm bore yields 10053 N at the same pressure. The SAIJ200X80-40-S is specifically chosen over a fixed-stroke SAI cylinder when the exact retract distance must be dialed in on the machine. To match this ISO 15552 interchangeable cylinder, specify a 200 mm bore, 80 mm stroke, 40 mm adjustment, PT port thread, SUS420J2 rod, and the -S magnet option. Mounting options include 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 SAIJ200AX80-40S FAQ
At a 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, the push force reaches 3204 kgf.
The rear adjuster screw allows you to mechanically shorten the nominal 80 mm stroke, providing a usable travel window of 40 to 80 mm. This stopper only sets the end-position; it does not lock or hold the load without live air pressure.
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