Airtac SAIJ200 Adjustable Cylinder SAIJ200BX225-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX225-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 225mm 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
- Stroke225 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX225-20S
The AirTAC SAIJ200X225-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 205 to 225 mm, allowing you to dial back the nominal 225 mm stroke by up to 20 mm during commissioning. Belonging to the 200 mm bore class, it generates 15708 N of push force and 15080 N of pull force at 0.5 MPa, making it suited for heavy-duty positioning tasks.
This variant is equipped with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for switch sensing. The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic sensors. Fluid ports are PT tapered thread, and the unit achieves standard speeds of 30-500 mm/s.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX225-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX225-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 225 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 SAIJ200BX225-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×225 | 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 SAIJ200BX225-20S Is Used
Heavy Press Tuning
Dial in the exact 205-225 mm retract position during heavy press commissioning without machining new stop blocks or changing the cylinder.
Product Changeover
Quickly adjust the end-stop to accommodate slightly different product sizes on a line, utilizing the 20 mm trim range to maintain cycle timing.
Corrosive Assembly
Leverage the SUS304 stainless steel rod for heavy assembly tasks in washdown or mildly corrosive factory environments while sensing position with DMSE switches.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX225-20S the Right Cylinder?
Selecting this 200 mm bore adjustable cylinder makes sense when a process requires exact end-position tuning during machine setup or product changeover. Instead of swapping out a fixed-stroke SAI cylinder or adding external stops, the rear adjuster screw lets you fine-tune the retract distance within that 205-225 mm window. If your thrust requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which may offer a more compact footprint.
Because the 225 mm stroke is relatively short for this large bore, side-load risks are minimal, but an external guide remains recommended for heavy loads. This SKU is dimensionally interchangeable per ISO 15552 mounting interface dimensions. Configuration includes PT ports, a SUS304 rod, and a -S magnet. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for dead-end load holding, consider an AirTAC SAIL or BSAI cylinder. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200BX225-20S FAQ
At 0.5 MPa it provides 15708 N of push force and 15080 N of pull force. At 0.9 MPa, the push force increases to 28274 N.
The rear adjuster screw acts as a mechanical stop that shortens the effective stroke. For this model, it creates a usable travel window of 205 to 225 mm, allowing fine-tuning of the end position without swapping the cylinder.
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