Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 65mm 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
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40
The AirTAC SAIJ200X65-40 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, featuring a 200 mm bore that generates 15708 N of push force at 0.5 MPa. A rear-mounted stroke adjuster allows you to trim the nominal 65 mm travel back by up to 40 mm, creating a precise 25-65 mm usable window. This enables exact end-position tuning at commissioning without the need to swap out the entire cylinder or bolt on external stops.
Built with an extruded aluminum barrel housing sensor grooves on both sides, this unit omits a piston magnet. It features a robust 40 mm SUS420J2 stainless steel rod and PT tapered port threads. The rear screw functions strictly as a travel stop to set deceleration alongside the standard air cushions, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 65 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 SAIJ200AX65-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×65 | 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 SAIJ200AX65-40 Is Used
Heavy Press Tuning
Dial in the exact 25-65 mm end-stop during machine commissioning to accommodate different material thicknesses in a high-force press without changing the actuator.
Product Changeover
Rapidly adjust the stroke rearward by up to 40 mm on a packaging line to handle varying product sizes while leveraging the 15708 N push force.
Variable End-Stop Clamping
Fine-tune the clamping travel window on heavy industrial assemblies, using the rear stopper to set precise deceleration points without adding external hardware.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40 the Right Cylinder?
Select this 200 mm bore actuator when your application requires substantial thrust, stepping up from a 160 mm bore that yields 10053 N at 0.5 MPa. The adjustable 25-65 mm travel window is ideal for machinery requiring variable end-stops during product changeovers. For load-holding without live pressure, you must integrate an external pilot-operated check valve or switch to an AirTAC SAIL or BSAI lock cylinder, as the SAIJ adjuster is not a brake.
To achieve a true ISO 15552 replacement match, verify the 200 mm bore, 65 mm stroke, -40 adjustment code, PT port threads, and your required mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Because the 65 mm stroke is relatively short for this massive bore, side-load risks are minimal, but the 40 mm rod diameter handles high axial stress effectively.
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 SAIJ200AX65-40 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can deliver a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the 65 mm nominal stroke by up to 40 mm, providing an effective travel window of 25-65 mm. This stopper sets the end position but does not lock the load without live air pressure.
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