Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X300-50 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50
The AirTAC SAIJ200X300-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 250-300 mm usable travel window by allowing you to dial back the 300 mm nominal stroke by up to 50 mm during commissioning.
This bore size incorporates a robust 40 mm carbon steel piston rod with an M36x2 thread, engineered to handle significant mechanical stresses. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback, while adjustable air cushions at both ends manage deceleration. The rear adjuster functions strictly as a travel stop to set the end position and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50 |
|---|---|
| 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50
| 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 SAIJ200X300-50 Is Used
Heavy Press Fine-Tuning
Dial in the exact 250-300 mm end position for large pressing operations during initial commissioning without machining new external stopper blocks.
Multi-Product Forming
Accommodate different material thicknesses or blank sizes on a single forming line by adjusting the rear stopper up to 50 mm during product changeover.
Large Clamp Positioning
Set precise clamping reach on heavy-duty fixtures where the nominal 300 mm stroke needs to be trimmed back to accommodate varying workpiece dimensions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50 the Right Cylinder?
Selecting this 200 mm bore model is appropriate when your application requires the immense thrust of 21991 N at 0.7 MPa, stepping up considerably from the 160 mm bore which provides 14074 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, enabling fine-tuning without swapping the cylinder or adding external stops. If your process demands load-holding without continuous air pressure, consider the SAIL air-released lock or BSAI clamp-lock cylinders, as the SAIJ adjuster is not a brake.
For a true ISO 15552 replacement match, verify the 200 mm bore, 300 mm stroke, 50 mm adjustment range, PT tapered port threads, and the absence of a magnet (-S). Because the 300 mm stroke is substantial, the unsupported load should be guided externally to prevent rod bending despite the heavy 40 mm rod diameter. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR brackets.
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 SAIJ200X300-50 FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 300 mm nominal stroke down to 250 mm. This allows precise end-position tuning at commissioning without replacing the cylinder.
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Standard models are processed and dispatched in 3-5 business days.
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