Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 450mm 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
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50
The AirTAC SAIJ200X450-50 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty tasks, delivering a substantial 15708 N push force at 0.5 MPa. It features an extruded aluminum barrel with sensor grooves on both sides and a robust 40 mm piston rod made of SUS420J2 stainless steel (code A). A PT tapered port thread ensures secure pneumatic integration.
This model provides a 450 mm nominal stroke equipped with a rear mechanical adjuster, creating a precise 400 to 450 mm usable travel window. This built-in stopper allows technicians to dial in the exact retract end-position during commissioning without adding external stops. The adjuster acts purely as a travel limit and does not lock the load; for position holding without live air pressure, an external rod lock or a related SAIL pneumatic locking cylinder is required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 450 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 SAIJ200AX450-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×450 | 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 SAIJ200AX450-50 Is Used
Heavy-Duty Pressing
Delivers up to 28274 N of push force at 0.9 MPa for forming and assembling large components, with the 50 mm stroke adjuster allowing precise bottom-out tuning.
Product Changeover
Quickly reconfigure the retract distance within the 400-450 mm window during production line size changes without physically swapping out the entire actuator.
Heavy Load Positioning
Shifts substantial masses along a 450 mm path, utilizing the robust 40 mm SUS420J2 stainless steel rod to withstand demanding industrial stresses.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50 the Right Cylinder?
Selecting the SAIJ200X450-50 is ideal when an application demands extreme thrust alongside variable end-stop positioning, such as pressing or heavy clamping setups where the exact 400-450 mm travel distance needs fine-tuning on the fly. If the full 15708 N push force at 0.5 MPa is excessive, stepping down to a 160 mm bore yields 10053 N, whereas upgrading to this 200 mm bore maximizes output up to 21991 N at 0.7 MPa. Because the total stroke reaches 450 mm, an external guide is strongly recommended to prevent excessive side-loading on the extended rod.
For a direct ISO 15552 replacement match, verify the 200 mm bore, 450 mm stroke, 50 mm adjustment range, PT port threads, and the specific mounting style. SAIJ supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally omitting FB, CA, CB, and CR brackets. Note that this SKU omits the magnet option, so it relies on external mechanical stops rather than CMSE or DMSE electronic sensors for position feedback.
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 SAIJ200AX450-50 FAQ
At 0.5 MPa operating pressure, it provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster acts as a mechanical stop that shortens the effective travel from the 450 mm nominal stroke down to as little as 400 mm, allowing precise end-position tuning without changing the cylinder.
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