Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40S
The AirTAC SAIJ200X300-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 260-300 mm. As the largest bore in the series, it delivers immense thrust, generating 28274N of push force at 0.9 MPa. The extruded aluminum barrel design includes sensor grooves on both sides for straightforward position detection.
This variant features a SUS420J2 stainless steel piston rod (code A) for enhanced corrosion resistance and ships with a magnet for use with CMSE reed and DMSE electronic sensors. The rear adjuster acts purely as a travel stop for end-position tuning, meaning it cannot hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 300 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 SAIJ200AX300-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×300 | 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 SAIJ200AX300-40S Is Used
Heavy Press Fine-Tuning
Dial in the exact 260-300 mm end position for large assembly presses during initial commissioning without swapping cylinders.
Product Line Changeover
Quickly adjust the stroke by up to 40 mm to accommodate new product sizes on a high-thrust conveyor line.
Large Mold Handling
Set precise retraction stops for heavy mold positioning systems where 28274N of push force is required.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40S the Right Cylinder?
Choose this 200 mm bore adjustable-stroke cylinder when an application requires massive force—stepping down to the 160 mm bore yields 18095N of push force at 0.9 MPa, making the 200 mm size necessary for heavy-duty tasks. The 40 mm adjustment range is ideal for fine-tuning end positions during machine setup or product changeovers without adding external stops. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 300 mm nominal stroke, 40 mm adjustment, PT tapered port threads, and the -S magnet requirement. Because the stroke is 300 mm, an external guide is recommended to prevent excessive side-loading on the large 40 mm diameter rod. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ200AX300-40S FAQ
At 0.9 MPa, this 200 mm bore cylinder provides 28274N of push force and 15080N of pull force. It operates at speeds of 30-500 mm/s.
The rear adjuster acts as an external stopper, allowing you to shorten the effective stroke within a 260-300 mm window. It is a travel stop, not a lock, and requires live air to hold the load.
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