Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 115mm 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
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-75S
The AirTAC SAIJ200X115-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the 115 mm nominal travel by up to 75 mm, yielding a highly flexible 40-115 mm usable window. Built with a SUS420J2 stainless steel rod and PT tapered ports, it delivers 15708 N of push force at 0.5 MPa and a maximum of 3204 kgf at 1.0 MPa. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback.
Equipped with a magnet for CMSE reed and DMSE electronic sensors, this unit allows precise end-position tuning during commissioning without adding external stops. The rear adjuster functions strictly as a travel stop, not a load-holding lock, meaning live air pressure is required to maintain position. It supports mounting options Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 115 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 SAIJ200AX115-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×115 | 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 SAIJ200AX115-75S Is Used
Heavy Press Tuning
Dial in the exact 40-115 mm pressing distance during machine commissioning to accommodate varying material thicknesses without replacing the actuator.
Product Changeover
Quickly adjust the rear stopper on automated lines when switching between different product sizes, saving hours of mechanical retooling.
Variable End-Stop Forming
Use the massive 15708 N push force at 0.5 MPa for metal forming or bending operations where the final stroke length changes per batch.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-75S the Right Cylinder?
Choose this 200 mm bore when an application demands massive thrust, such as 15708 N push at 0.5 MPa, combined with highly variable end-stops between 40 and 115 mm. If your force requirements are lower, stepping down to the 160 mm bore yields 10053 N of push force at the same pressure while saving footprint. The adjustable stroke is selected over a fixed SAI cylinder when machine setups require frequent product-size changeovers without physically swapping out the actuator.
Because the stroke is 115 mm, side-loading is less severe than on long-trroke variants, but the substantial 40 mm rod and M36x2 thread still handle significant off-center loads. For applications needing to hold a load without live air pressure, note that this SAIJ adjuster is a stop, not a lock; you would need to specify a SAIL or BSAI series cylinder instead. This model is dimensionally interchangeable per ISO 15552.
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 SAIJ200AX115-75S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At its maximum rated pressure of 1.0 MPa, it delivers up to 3204 kgf.
The rear adjuster screw allows you to shorten the 115 mm nominal stroke by up to 75 mm, creating a usable travel window of 40 to 115 mm. This stopper simply limits the travel distance and does not lock or hold the load without continuous air pressure.
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