Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X300-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 300mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke300 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 SAIJ200X300-40S
The AirTAC SAIJ200X300-40-S is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty applications. A PT tapered G3/4 port ensures high airflow for its 30-500 mm/s operating speed.
Equipped with a rear mechanical stopper, this model allows you to dial back the nominal 300 mm stroke by up to 40 mm, creating a precise 260-300 mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches. It supports a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 300 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×300 | 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 SAIJ200X300-40S Is Used
Variable End-Stop Tuning
Dial in the exact 260-300 mm travel window during machine commissioning or product changeover without adding external mechanical stops.
Automated Assembly Lines
Handles massive actuators on automated lines, using the PT threaded G3/4 ports to ensure rapid 30-500 mm/s cycling despite the large bore volume.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40S the Right Cylinder?
The adjustable stroke is ideal for production lines needing variable end-stops during product changeovers, removing the need to physically swap out cylinders or bolt on external stops.
Because the 300 mm stroke is substantial, the heavy 40mm rod will experience side-loading if the load is unsupported; always guide the load externally to prevent binding. Note 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 without air pressure, consider the SAIL pneumatic lock or BSAI clamp-lock cylinder variants instead of relying on the cushion or stopper.
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 SAIJ200X300-40S FAQ
At 0.7 MPa, the push force increases to 21991N. The maximum operating pressure is 1.0 MPa.
The rear adjuster screw acts as a mechanical stopper that lets you trim the effective travel back from the 300 mm nominal stroke by up to 40 mm, giving a usable window of 260-300 mm. It sets the end position but does not lock the load without continuous air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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