Airtac SAIJ200 Adjustable Cylinder SAIJ200BX900-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX900-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 900mm 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
- Stroke900 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 SAIJ200BX900-20
The AirTAC SAIJ200X900-20 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. It delivers substantial thrust, pushing 28274N at 0.9 MPa, and features a SUS304 stainless steel rod for superior corrosion resistance. By integrating a rear stroke adjuster, this model provides an 880 to 900 mm usable travel window, allowing you to trim the effective stroke by up to 20 mm without swapping out the cylinder.
This adjustable-stroke design eliminates the need for external mechanical stops during machine commissioning or product changeover. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position detectors. Operating at speeds of 30-500 mm/s, this cylinder uses PT tapered G3/4 ports and is dimensionally interchangeable per ISO 15552 mounting-interface dimensions.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX900-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX900-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 900 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 SAIJ200BX900-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×900 | 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 SAIJ200BX900-20 Is Used
Heavy Press Fine-Tuning
Dial in the exact 880-900mm retract position on a large metal forming press during initial commissioning, absorbing minor mechanical variations without machining new stopper blocks.
Large Pallet Changeover
Adjust the end-stop position by up to 20mm on the fly when switching a heavy-duty conveyor line to accommodate pallets of slightly different widths.
Actuator End-Stop Calibration
Set precise retract limits for massive material handling actuators, using the rear screw to compensate for structural deflection under heavy loads.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX900-20 the Right Cylinder?
Choose this 200 mm bore cylinder when your application demands the highest force class, as it provides 15708N of push force even at a low 0.5 MPa. If your setup can operate efficiently with less thrust, stepping down to a 160 mm bore yields 10053N at 0.5 MPa, reducing physical size and air consumption. The SAIJ200X900-20 is selected over a fixed-stroke SAI when a precise 880-900 mm travel window is required to dial in the retract end-stop during setup.
Because the stroke is 900 mm, the unsupported M36x2 piston rod is highly susceptible to side-loading and sagging; an external guide bearing is strongly recommended to prevent premature seal failure. The rear adjuster acts purely as a travel stop and cannot hold a load without live air pressure. For true load-holding, select an SAIL pneumatic lock or BSAI clamp-lock cylinder. This configuration uses PT port threads and omits the -S magnet, so it does not support CMSE or DMSE sensors without modification.
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 SAIJ200BX900-20 FAQ
This 200 mm bore cylinder delivers a push force of 15708N at 0.5 MPa and 28274N at 0.9 MPa. The pull force is 15080N at 0.5 MPa. It operates at a speed range of 30-500 mm/s.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the nominal 900 mm stroke by up to 20 mm, creating an 880-900 mm usable travel window. It functions as a travel stop and deceleration point, not a load-holding lock.
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