Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 140mm 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
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75S
The AirTAC SAIJ200X140-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers massive thrust, pushing 28274N at 0.9 MPa, making it suited for heavy-duty positioning tasks. The integrated -S magnet enables position feedback via CMSE reed and DMSE solid-state sensors mounted cleanly into the dual-side barrel grooves.
This specific SKU provides a nominal 140 mm stroke that can be dialed back by up to 75 mm, creating a 65-140 mm usable travel window. This built-in adjustability allows operators to fine-tune end positions during commissioning or product changeovers without adding external stops. The rod is constructed from SUS420J2 stainless steel for enhanced corrosion resistance, and the PT tapered port threads ensure a robust, leak-free pneumatic connection.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 140 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 SAIJ200AX140-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×140 | 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 SAIJ200AX140-75S Is Used
Machine Changeover
Dial in the 65-140 mm travel window during product size transitions to set new end stops without physically swapping cylinders.
Heavy Pressing
Leverage the 28274N push force at 0.9 MPa for intense pressing operations, using the adjuster to precisely set the bottoming position.
Automated Forming
Use the SUS420J2 stainless steel rod in demanding forming stations where minor position tweaks are needed for varying material batches.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75S the Right Cylinder?
Select this 200 mm bore cylinder when an application requires substantial force—up to 15708N push at 0.5 MPa—along with on-the-fly end-position tuning. If your setup demands less thrust, stepping down to a 160 mm bore yields 10053N at 0.5 MPa. The rear adjustment screw on this SAIJ model is strictly a travel stop; it decelerates the end of stroke but does not lock the load. For applications requiring true load-holding without live air pressure, consider the AirTAC SAIL or BSAI clamp-lock series.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 140 mm stroke, PT port threads, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 140 mm stroke is relatively short for this large bore, side-loading risks are lower, but an external guide is still recommended for heavy off-center loads.
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 SAIJ200AX140-75S FAQ
It features a rear stopper screw that allows you to shorten the effective travel from the nominal 140 mm down to 65 mm, providing a 65-140 mm adjustable window. This lets you fine-tune the retract end-position during setup without changing the cylinder.
At 0.5 MPa it provides 15708N of push force and 15080N of pull force. At 0.9 MPa, the push force increases to 28274N, with a maximum rated force of 3204 kgf at 1.0 MPa.
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