Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-40S 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 SAIJ200AX450-40S
The AirTAC SAIJ200X450-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the travel by up to 40 mm. This creates a usable stroke window of 410 to 450 mm, enabling precise end-position tuning at commissioning without swapping out the unit or adding external stops. As the largest bore in the series, it delivers massive thrust, generating 15708 N of push force and 15080 N of pull force at 0.5 MPa.
This specific SKU is built with a SUS420J2 stainless steel rod (code A) for superior corrosion resistance and includes a magnet (-S) for electronic or reed switch sensing. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible mounting of AirTAC CMSE reed or DMSE solid-state sensors. It operates at speeds of 30-500 mm/s and uses G3/4 PT tapered port threads.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-40S |
|---|---|
| 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 SAIJ200AX450-40S
| 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 SAIJ200AX450-40S Is Used
Heavy Press Fine-Tuning
Dial in the exact 410 to 450 mm travel window during initial commissioning to set precise heavy-duty pressing depths without machining external stoppers.
Product Size Changeover
Quickly adapt automated line end-stops by up to 40 mm when switching between different large-format product dimensions.
Variable End-Stop Actuation
Use the rear adjustment screw to set the exact retract position for heavy material handling, ensuring perfect alignment with downstream equipment.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-40S the Right Cylinder?
Select this 200 mm bore cylinder when your application requires maximum force output, as stepping down to a 160 mm bore drops your 0.5 MPa push force to 10053 N. The adjustable stroke is highly beneficial for machine setups requiring variable end-stops or product-size changeovers, whereas a fixed-stroke SAI cylinder is better suited for static, unchanging travel lengths. Remember that the rear adjuster acts purely as a mechanical stop to set deceleration and travel length; it does not hold the load without live air pressure. For secure load-holding, consider an AirTAC SAIL or BSAI cylinder.
Because the 450 mm stroke is substantial, the 40 mm diameter carbon steel rod and M36x1.5 rod thread provide rigidity, but an external guide is still recommended to prevent excessive side-loading on the piston. This profile cylinder is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ200AX450-40S FAQ
At 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 rated pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective travel from the nominal 450 mm down to a minimum of 410 mm. This provides a 410-450 mm adjustable window for fine-tuning end positions without replacing the cylinder.
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