Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40S
The AirTAC SAIJ200X550-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 550 mm nominal stroke by up to 40 mm. This creates a precise 510-550 mm usable travel window, enabling exact end-position tuning at commissioning without swapping the barrel or adding external stops. As the largest bore in the series, it delivers immense thrust, pushing 28274 N and pulling 27144 N at 0.9 MPa.
This specific configuration includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and a built-in magnet (-S) for position sensing. The extruded aluminum barrel features sensor grooves on both sides, directly accepting AirTAC CMSE reed and DMSE electronic solid-state switches. It operates at 30-500 mm/s and uses a PT G3/4 tapered port.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 550 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 SAIJ200AX550-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×550 | 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 SAIJ200AX550-40S Is Used
Heavy Machinery Setup
Dial in the 510-550 mm retract position during heavy equipment assembly, ensuring massive components align perfectly without machining custom spacers.
Product Changeovers
Adjust the end stop by up to 40 mm on the fly to accommodate different large-format product sizes on the production line.
High-Force Positioning
Leverage the 28274 N push force to shift heavy molds, using the fine-tune screw to set exact bottoming depth before clamping.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40S the Right Cylinder?
Choose this 200 mm bore when an application requires maximum output force, as it delivers up to 3204 kgf at 1.0 MPa. If you need less push and want a smaller footprint, stepping down to the 160 mm bore yields 18095 N of push force at 0.9 MPa. The adjustable stroke is ideal for product-size changeovers on a line, letting operators fine-tune the retract stop on the fly. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true fail-safe load holding, consider an external rod lock or the BSAI clamp-lock series. Because the 550 mm stroke is long and unsupported, an external guide is recommended to manage side loads. Mounting options include 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 SAIJ200AX550-40S FAQ
At 0.9 MPa, this 200 mm bore cylinder provides a push force of 28274 N and a pull force of 27144 N. It reaches its maximum thrust of 3204 kgf at 1.0 MPa.
The rear adjuster acts as an external stopper that trims the effective travel back from the 550 mm nominal stroke, giving you a usable 510-550 mm window. It allows for fine end-position tuning without changing the cylinder.
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