Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 40mm 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
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40
The AirTAC SAIJ200X40-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 0-40 mm usable travel window, allowing you to dial back the 40 mm nominal stroke for precise end-position tuning during commissioning. Built with a robust 200 mm bore, it delivers 15708 N of push force at 0.5 MPa, making it ideal for heavy-duty positioning tasks.
This model features a SUS420J2 stainless steel rod (code A) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. It supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 40 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 SAIJ200AX40-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×40 | 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 SAIJ200AX40-40 Is Used
Heavy Press Tuning
Fine-tune the 0-40 mm travel end-stop during machine commissioning to set the exact contact force for heavy pressing operations.
Product Changeovers
Quickly adjust the cylinder's effective stroke on the line to accommodate different sized heavy components without changing out the entire actuator.
Robotic End Stopping
Use the rear stopper to set a precise retraction limit for heavy payload handling, ensuring repeatable positioning within the 40 mm window.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires up to 15708 N of push force at 0.5 MPa (or 21991 N at 0.7 MPa). If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N at 0.5 MPa, while moving up is not possible as this is the largest standard size. The adjustable stroke is selected over a fixed SAI when you need variable end-stops for product changeovers without physically swapping the cylinder.
Because the nominal stroke is 40 mm, no external side-load guide is strictly required, though the substantial 40 mm rod diameter handles high bending loads well. Remember 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. This unit is dimensionally interchangeable per ISO 15552 mounting-interface dimensions.
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 SAIJ200AX40-40 FAQ
At an operating pressure of 0.5 MPa, the 200 mm bore provides a push force of 15708 N and a pull force of 15080 N. At 0.7 MPa, the push force increases to 21991 N.
The SAIJ200X40-40 has a nominal stroke of 40 mm with a 40 mm adjustment code, meaning the effective travel can be fine-tuned anywhere within a 0-40 mm window using the rear screw. It acts as a travel stop and does not lock the load without continuous air pressure.
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