Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40 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 SAIJ200AX300-40
The AirTAC SAIJ200X300-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 260-300 mm usable travel window, allowing you to dial back the 300 mm nominal stroke by up to 40 mm during commissioning without needing external stops. Built with a robust 40 mm SUS420J2 stainless steel rod, it handles heavy loads up to 15080 N of pull force at 0.5 MPa.
This model uses PT tapered port threads (G3/4) and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on other variants.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40 |
|---|---|
| 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 SAIJ200AX300-40
| 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 SAIJ200AX300-40 Is Used
Heavy Pressing
Adjustable end-stop for heavy pressing operations, allowing precise 260-300 mm travel tuning to accommodate different material thicknesses.
Product Changeover
Facilitates rapid product size changeover on conveyor lines by dailing back the stroke up to 40 mm without changing the cylinder mounting.
Machine Setup
Fine-tunes the retraction end position during machine setup, ensuring perfect alignment without adding external mechanical stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-40 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires massive thrust, delivering 15080 N of pull force at 0.5 MPa. If you need less force, stepping down to a 160 mm bore yields 9425 N of pull force, but the 200 mm bore is essential for heavy pressing or lifting. The adjustable stroke is ideal for product changeovers, letting you fine-tune the end position without swapping the cylinder. Because the 300 mm stroke is substantial, an external guide is recommended to prevent excessive side-loading on the rod.
This SAIJ variant is dimensionally interchangeable per ISO 15552. When replacing a cylinder, verify the 200 mm bore, 300 mm stroke, 40 mm adjustment range, PT G3/4 port, and the specific mounting style. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series.
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 SAIJ200AX300-40 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster screw lets you shorten the 300 mm nominal stroke by up to 40 mm, providing a usable travel window of 260-300 mm. It acts as a mechanical stop to set the end position and does not lock the load without air pressure.
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