Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-20 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 SAIJ200AX180-20
The AirTAC SAIJ200X180-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window between 160 and 180 mm without adding external stops. Built for heavy-duty tasks, this 200 mm bore size delivers 15708 N of thrust at 0.5 MPa and incorporates a robust 40 mm carbon steel piston rod paired with SUS420J2 stainless steel components (code A) for heightened corrosion resistance. It operates at speeds of 30-500 mm/s and uses PT G3/4 tapered ports.
This adjustable model omits the FB, CA, CB, and CR mounting styles, supporting only Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces to maintain its compact profile design. The rear adjuster acts purely as a travel stop to decelerate the load alongside the air cushions; it does not lock the position. For applications requiring load-holding without live air pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-20 |
|---|---|
| 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 SAIJ200AX180-20
| 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 SAIJ200AX180-20 Is Used
Heavy Press Tuning
Dial in the exact 160-180 mm travel end-stop during machine setup to accommodate varying material thicknesses in large-scale pressing operations.
Automated Assembly Line
Adjust the rear stopper on the fly during product changeovers to handle different large-component dimensions without swapping out the entire cylinder.
Variable End-Stop Positioning
Utilize the 20 mm adjustment window to fine-tune the retraction end position precisely, compensating for mechanical wear over time in heavy-duty jigs.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-20 the Right Cylinder?
Select this 200 mm bore cylinder when your application requires the maximum standard thrust class, pushing 15708 N at 0.5 MPa, but demands on-the-fly end-position tuning during commissioning or product changeovers. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which might save space and air consumption. The SAIJ200X180-20 is specified with PT G3/4 tapered ports, a 40 mm rod, and SUS420J2 stainless steel material. Because the stroke is 180 mm, it falls under the 300 mm threshold, but the substantial 28274 N output at 0.9 MPa means you should still ensure your mounting interface can handle the dynamic 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 SAIJ200AX180-20 FAQ
At an operating pressure of 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum pressure of 1.0 MPa, it delivers up to 3204 kgf of push thrust.
The rear adjuster screw allows you to shorten the nominal 180 mm stroke by up to 20 mm, creating a usable travel window of 160 to 180 mm. This stopper fine-tunes the end position but does not hold the load without live air pressure.
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