Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 180mm 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
- Stroke180 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-40
The AirTAC SAIJ200X180-40 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, delivering a substantial push force of 15708 Newtons at 0.5 MPa. It features a precision rear adjusting screw that allows you to trim the effective stroke, providing a usable travel window of 140 to 180 mm without changing the cylinder body.
This unit utilizes a SUS420J2 stainless steel rod for superior corrosion resistance and is fitted with PT tapered ports. The rear stopper acts solely as a travel end-position setter for product changeovers, meaning it cannot hold a load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 180 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 SAIJ200AX180-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×180 | 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 SAIJ200AX180-40 Is Used
Heavy Press Tuning
Dial in the exact 140 to 180 mm end-stop position during machine commissioning to ensure precise pressing force on large components.
Product Size Changeover
Quickly adjust the retract distance up to 40 mm to accommodate different heights of heavy products on the same manufacturing line without swapping cylinders.
High-Force Positioning
Leverage the 15708 N push force at 0.5 MPa to move and position heavy pallets or industrial molds with adjustable end-stops for varied layouts.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-40 the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application requires maximum thrust, stepping up significantly from the 160 mm bore which provides 10053 N of push force at 0.5 MPa. The adjustable 40 mm window is chosen over a fixed-stroke SAI cylinder when machinery requires fine-tuning of the retract end-position during commissioning or when accommodating varying product sizes on the same line. For load-holding without live air pressure, an external rod lock or a SAIL pneumatic lock cylinder is required, as the SAIJ adjuster is not a braking device. When sourcing an ISO 15552 replacement, match the 200 mm bore, 180 mm stroke, 40 mm adjustment, PT port thread, and the SUS420J2 rod material. Because the nominal stroke is 180 mm, standard mounting options like Basic, FA, LB, TC, FTC, TCM1, and TCM2 can be used without needing external side-load guides.
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 SAIJ200AX180-40 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 Newtons and a pull force of 15080 Newtons. It can achieve a maximum push force of 3204 kgf at 1.0 MPa.
The rear adjusting screw acts as a mechanical stopper that allows you to shorten the nominal 180 mm stroke by up to 40 mm, creating a usable travel window of 140 to 180 mm. It requires live air to function and does not lock the load in place.
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