Airtac SAIJ200 Adjustable Cylinder SAIJ200BX475-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX475-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 475mm 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
- Stroke475 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 SAIJ200BX475-20
The AirTAC SAIJ200X475-20 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty tasks, delivering a substantial 15708N of push force at 0.5 MPa. It features a 475mm nominal stroke paired with a rear mechanical adjuster that creates a precise 455-475mm usable travel window. This built-in stopper allows technicians to dial in the exact retract end-position during commissioning without swapping out the entire unit.
Equipped with a SUS304 stainless steel rod (code B) and PT tapered ports, this extruded aluminum barrel design incorporates sensor grooves on both sides. It supports a speed range of 30-500mm/s and utilizes variable air cushions at both ends to decelerate massive loads smoothly. The rear adjuster functions strictly as a travel stop for position tuning, not as a lock, meaning it will not hold the load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX475-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX475-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 475 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 SAIJ200BX475-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×475 | 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 SAIJ200BX475-20 Is Used
Heavy Press Tuning
Fine-tune the 455-475mm retract end-position on heavy presses during initial commissioning to achieve perfect material contact without external shims.
Product Changeovers
Adapt a heavy-duty conveyor line for different pallet sizes by dialing back the stroke up to 20mm, enabling rapid format changes.
Large Assembly Stops
Set precise variable end-stops for large component assembly, using the 15708N push force to move heavy fixtures reliably.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX475-20 the Right Cylinder?
Selecting this 200mm bore model provides a maximum thrust of 3204kgf at 1.0 MPa, stepping up significantly from the 160mm bore which yields 10053N at 0.5 MPa. The adjustable stroke is chosen over a fixed SAI cylinder when an application requires variable end-stops or frequent product-size changeovers, allowing 20mm of fine-tuning on the retract end. Because the 475mm stroke is substantial, an external guide is strongly recommended to prevent excessive side-loading on the rod.
To match this exact configuration for an ISO 15552 replacement, verify the 200mm bore, 475mm stroke, 20mm adjustment range, PT port threads, and the absence of a magnet. If your machinery requires true load-holding without live air pressure, a plain SAIJ is insufficient; you must pivot to the SAIL air-released lock or BSAI clamp-lock series instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR.
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 SAIJ200BX475-20 FAQ
At 0.5 MPa, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum operating pressure of 1.0 MPa, it delivers a peak push force of 3204kgf.
The rear adjuster acts as a mechanical stop that shortens the effective stroke from the nominal 475mm down to a minimum of 455mm. This creates a 455-475mm travel window for fine-tuning the retract end-position during setup, but it does not lock the load without live air.
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