Airtac SAIJ200 Adjustable Cylinder SAIJ200AX45-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX45-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 45mm 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
- Stroke45 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX45-20
The AirTAC SAIJ200X45-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 25-45 mm window. Delivering massive thrust, it provides 15708 N of push force and 15080 N of pull force at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
This specific SKU utilizes a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered port threading. The rear adjustment screw acts purely as a travel stop to set the exact end position during commissioning without requiring external stops. It is not a locking device, so live air pressure must be maintained to hold the load.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX45-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX45-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 45 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 SAIJ200AX45-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×45 | 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 SAIJ200AX45-20 Is Used
Heavy Press Tuning
Dial in the exact 25-45 mm travel window on a high-force press to accommodate material thickness variations without swapping out the entire cylinder.
Machine Changeover
Quickly adjust the retract end-stop during product size changes on the line, saving commissioning time by turning the rear screw instead of adding shims.
Industrial Clamping
Secure massive workpieces with up to 15708 N of push force, relying on the rear stopper to precisely set the clamp position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX45-20 the Right Cylinder?
Choose this 200 mm bore when your application requires extreme force up to 15708 N at 0.5 MPa, stepping up significantly from the 160 mm bore which yields 10053 N. The adjustable 25-45 mm travel window is ideal for setups requiring precise end-position tuning during product changeovers rather than a fixed-stroke SAI cylinder. Because the nominal stroke is short, side-load risks are minimal, but the heavy mass demands robust mounting.
For an exact ISO 15552 replacement match, configure with a 200 mm bore, 45 mm stroke, 20 mm adjustment, PT port thread, SUS420J2 rod material, and no magnet. Note that speeds are limited to 30-500 mm/s for this large bore. If you need to hold the load safely without continuous air pressure, the rear stopper cannot do this; you must use an external pilot-operated check valve or switch to an AirTAC SAIL or BSAI locking cylinder.
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 SAIJ200AX45-20 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. It can deliver up to 3204 kgf at its maximum 1.0 MPa pressure rating.
The rear adjuster screw allows you to shorten the nominal 45 mm stroke by up to 20 mm, creating a usable travel window of 25 to 45 mm. This stopper only sets the end position; it does not lock the load without live air pressure.
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