Airtac SAIJ200 Adjustable Cylinder SAIJ200BX240-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX240-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 240mm 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
- Stroke240 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 SAIJ200BX240-40
The AirTAC SAIJ200X240-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 240 mm stroke that can be dialed back by up to 40 mm, yielding a precise 200-240 mm usable travel window for heavy-duty commissioning. In the 200 mm bore class, it delivers massive thrust, pushing 21991 N at 0.7 MPa and peaking at 3204 kgf at 1.0 MPa.
This variant uses a SUS304 stainless steel rod (code B) for superior corrosion resistance and features PT tapered port threads sized at G3/4. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU is specified without a magnet. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position, meaning it cannot hold a load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX240-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX240-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 240 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 SAIJ200BX240-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×240 | 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 SAIJ200BX240-40 Is Used
Heavy Press Tuning
Dial in the exact 200-240 mm travel window during heavy press commissioning to accommodate varying material thicknesses without remounting the actuator.
Line Changeover
Adjust the retract stopper on the fly when switching product sizes on a high-force assembly line, saving the downtime of physically swapping cylinders.
Large Fixture Alignment
Fine-tune the end position of heavy fixtures using the 40 mm adjustment range, ensuring precise alignment while relying on the 40 mm rod for structural support.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX240-40 the Right Cylinder?
Select this 200 mm bore cylinder when an application requires immense force combined with on-the-fly end-position tuning. If 21991 N of push force at 0.7 MPa is excessive, stepping down to a 160 mm bore yields 14074 N, whereas remaining at 200 mm ensures maximum rigidity. Choose the adjustable SAIJ over a fixed-stroke SAI when you need to trim the travel window during machine setup or product-size changeovers without physically swapping the cylinder or adding external stops.
Because the 240 mm stroke is substantial, an external guide rail is recommended to manage side loads, despite the robust 40 mm rod diameter and M36x2 thread. This SKU is dimensionally interchangeable per ISO 15552 and is configured with PT ports, a SUS304 rod, no magnet, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). For load-holding without live pressure, use an SAIL or BSAI cylinder instead.
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 SAIJ200BX240-40 FAQ
At the maximum operating pressure of 1.0 MPa, this 200 mm bore cylinder generates a maximum push force of 3204 kgf. At 0.9 MPa it delivers 28274 N, and at 0.7 MPa it provides 21991 N of thrust.
The rear adjuster acts as a mechanical stop that shortens the 240 mm nominal stroke by up to 40 mm, creating a 200-240 mm usable travel window. It only sets the travel end and does not lock or hold the load without live air pressure.
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