Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 175mm 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
- Stroke175 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-50
The AirTAC SAIJ200X175-50 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. Featuring a robust 200 mm bore and a 175 mm nominal stroke, its integrated rear adjuster allows you to dial back the travel by up to 50 mm, creating a precise 125-175 mm usable window. This on-machine adjustability eliminates the need to swap cylinders or bolt on external stops during product changeovers.
Built to deliver massive thrust, it provides 15708 N of push force and 15080 N of pull force at 0.5 MPa. This specific configuration incorporates an SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel features sensor grooves on both sides, allowing you to easily mount CMSE or DMSE sensors for position feedback.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 175 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 SAIJ200AX175-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×175 | 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 SAIJ200AX175-50 Is Used
Heavy Press Tuning
Dial in the exact 125-175 mm end-stop for high-tonnage pressing operations without swapping out the entire cylinder.
Product Changeover
Quickly adjust the retract distance on a packaging line to accommodate different pallet or product sizes on the fly.
Machine Setup
Fine-tune the end position during initial commissioning to perfectly align heavy machinery components without external stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-50 the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application demands extremely high force, stepping up significantly from a 160 mm bore that yields 10053 N push force at 0.5 MPa. You should choose the SAIJ adjustable-stroke variant over a fixed SAI model when your setup requires fine-tuning the retract distance at commissioning or accommodating varying product sizes on the same line. Because the 175 mm stroke is under the 300 mm threshold, side-load stress is moderate, but the substantial 40 mm rod and M36x2 thread provide excellent rigidity to handle heavy loads.
When specifying a replacement, ensure you match the 200 mm bore, 175 mm stroke, 50 mm adjustment range, PT port thread, and the SUS420J2 rod material. Remember that the rear adjuster functions strictly as a travel stop to set deceleration, not as a locking device. If your process requires the load to be held securely without continuous live air pressure, you must integrate an external pilot-operated check valve or switch to an AirTAC SAIL or BSAI locking cylinder.
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 SAIJ200AX175-50 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 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 175 mm nominal stroke down to as little as 125 mm. This creates a 125-175 mm usable window for fine-tuning the end position without changing the cylinder.
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