Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-50 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 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 SAIJ200AX300-50
The AirTAC SAIJ200X300-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 250-300 mm usable travel window from its 300 mm nominal stroke. Delivering 15708 N of push force at 0.5 MPa, it handles massive loads while allowing fine end-position tuning during commissioning without swapping the cylinder. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
This variant uses a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and features a PT tapered G3/4 port. The rear adjuster acts strictly as a mechanical stop to set the retract end position; it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-50 |
|---|---|
| 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 | 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 SAIJ200AX300-50
| 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 SAIJ200AX300-50 Is Used
Heavy Machinery Setup
Fine-tune the 250-300 mm travel window during large equipment commissioning to perfect end-stop positions without machining new mounts.
Product Size Changeover
Quickly adjust the retract distance up to 50 mm when switching between different product sizes on a heavy assembly line.
Large Press Positioning
Set precise bottoming positions for massive pressing operations, leveraging 15708 N of thrust at 0.5 MPa while using the rear screw as a dead stop.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-50 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires up to 15708 N push force at 0.5 MPa, or step down to the 160 mm bore if you only need 10053 N. The 50 mm adjustment range is ideal for product changeovers on large machinery, allowing you to dial back the stroke from 300 mm to 250 mm without adding external stops. Because the 300 mm stroke is substantial, always use an external guide to support the 40 mm rod and prevent excessive side loading. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR mounts.
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 SAIJ200AX300-50 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder generates 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster allows you to mechanically shorten the 300 mm nominal stroke by up to 50 mm, providing a usable travel window of 250-300 mm. It functions as a hard stop for end-position tuning and requires live air pressure to hold the load.
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