Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 180mm 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
- Stroke180 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50
The AirTAC SAIJ200X180-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 180 mm nominal stroke by up to 50 mm. This yields a usable travel window of 130-180 mm, enabling precise end-position tuning at commissioning without swapping the barrel or adding external stops. It delivers massive thrust, pushing with 15708 N and pulling with 15080 N at 0.5 MPa.
This heavy-duty unit features a robust 40 mm piston rod made of SUS420J2 stainless steel (code A) and uses PT G3/4 tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches, though this specific SKU is configured without a magnet. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 180 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 SAIJ200AX180-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×180 | 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 SAIJ200AX180-50 Is Used
Heavy Press Tuning
Fine-tune the 130-180 mm travel window during heavy press commissioning to dial in the exact contact distance without machining custom spacers.
Product Changeover
Rapidly adjust the rear stopper on a packaging line to accommodate different large-format product sizes, reducing downtime between runs.
Variable End Stops
Set precise retract positions for massive material handling jigs, leveraging the 15708 N push force at 0.5 MPa to move heavy pallets.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50 the Right Cylinder?
Select this 200 mm bore cylinder when your application requires extreme force, as it provides up to 15708 N of push force at just 0.5 MPa. If you need less thrust, stepping down to a 160 mm bore yields 10053 N at the same pressure. The adjustable 130-180 mm stroke is ideal for machine setups requiring variable end-stops or frequent product changeovers, offering finer control than a fixed-stroke SAI cylinder.
For load-holding without continuous air pressure, note that the rear adjuster and air cushions only decelerate the travel end—they do not function as a lock or brake. You must use a SAIL (pneumatic lock), BSAI (clamp-lock), or an external rod lock. This SAIJ model supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. It 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 SAIJ200AX180-50 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At the maximum pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster screw allows you to shorten the 180 mm nominal stroke by up to 50 mm, creating a usable travel window of 130-180 mm. The adjuster acts as a mechanical stop to fine-tune the retract position; it is not a lock and will not hold the load without live air pressure.
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