Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50S
The AirTAC SAIJ200X210-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 160-210 mm. Delivering 15708 N of push force at 0.5 MPa, this massive 200 mm bore actuator handles heavy-duty positioning. The extruded aluminum barrel features sensor grooves on both sides, and the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-of-stroke detection.
This specific SKU utilizes a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. The rear adjustment screw acts as a hard stop to fine-tune the retract position during commissioning or product changeovers without adding external stops. It is important to note that this adjuster only sets the travel end point; it does not lock or hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 210 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 SAIJ200AX210-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×210 | 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 SAIJ200AX210-50S Is Used
Heavy Press Tuning
Dial in the exact 160-210 mm stroke end-position during machine commissioning to accommodate varying material thicknesses without installing external mechanical stops.
Product Size Changeover
Quickly adjust the retract distance on a packaging line when transitioning between different box sizes, using the 50 mm rear stopper to set the new end point.
Large Assembly Stops
Leverage the 15708 N push force at 0.5 MPa to move heavy pallets into a fixture, relying on the SUS420J2 stainless rod for durability in harsh industrial environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50S the Right Cylinder?
Selecting this 200 mm bore model is ideal when your application requires the maximum standard thrust class, pushing 15708 N at 0.5 MPa (or 21991 N at 0.7 MPa). 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 better suit medium-heavy loads while saving physical space. The 50 mm adjustment range is particularly useful on packaging lines where product sizes frequently change, allowing operators to dial in the exact 160-210 mm end position on the fly instead of swapping out the entire cylinder.
For an exact ISO 15552 replacement match, ensure you specify the 200 mm bore, 210 mm stroke, 50 mm adjustment range, PT tapered port threads, and the -S magnet option. Because the 210 mm stroke exceeds the 300 mm threshold requiring external guides, the robust 40 mm rod diameter and M36x2 rod thread provide excellent rigidity, but an external guide rail is still highly recommended to prevent side-load damage. If your application requires true load-holding without continuous air pressure, the SAIJ adjuster will not suffice; consider the SAIL air-released lock or BSAI clamp-lock series instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
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 SAIJ200AX210-50S 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 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw allows you to shorten the nominal 210 mm stroke by up to 50 mm, creating a usable travel window of 160-210 mm. It acts as a physical stop to fine-tune the end position but does not lock or hold the load without live air pressure.
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