Airtac SAIJ200 Adjustable Cylinder SAIJ200X75-40S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X75-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 75mm 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
- Stroke75 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 SAIJ200X75-40S
The AirTAC SAIJ200X75-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. This yields a highly versatile 35-75mm usable travel window, allowing you to fine-tune the retract end-position at commissioning without swapping out the entire actuator. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes the -S magnet, it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches for precise position verification.
Built to withstand demanding environments, this carbon-rod profile cylinder supports operating pressures up to 1.0MPa. The rear adjuster acts strictly as a mechanical stop to set the travel limit and relies on the integrated variable air cushions to decelerate the load; it does not hold the load without live air pressure. For applications requiring true load-holding in the event of pressure loss, consider the SAIL or BSAI series instead.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X75-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X75-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAIJ200X75-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SAIJ200X75-40S Is Used
Heavy Press Tuning
Dial in the exact 35-75mm travel window during heavy press commissioning to accommodate varying material thicknesses without adding external stops.
Product Size Changeover
Quickly adjust the retract end-position on automated lines when switching product sizes, leveraging the 40mm adjustment range to save setup time.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X75-40S the Right Cylinder?
Selecting the SAIJ200X75-40-S is ideal when your application requires immense thrust but only a short, highly variable stroke. Stepping down to a 160mm bore drops your 0.5MPa push force to 10053N, while moving up to this 200mm bore provides a maximum of 15708N. The PT tapered port threads (G3/4) match the robust 40mm rod diameter, ensuring high structural integrity under heavy loads. Choose this adjustable model over a fixed SAI when you need variable end-stops for machine changeover or product-size adjustments.
Because the 75mm stroke is relatively short for this massive bore, side-loading is less of a concern than with longer strokes, but an external guide is still recommended if heavy lateral forces are present. When replacing an ISO 15552 cylinder, match the 200mm bore, 75mm stroke, 40mm adjustment, G3/4 PT ports, and the -S magnet requirement. The available mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR configurations.
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 SAIJ200X75-40S FAQ
At the maximum operating pressure of 1.0MPa, it delivers up to 3204 kgf.
The rear mechanical stopper allows you to trim the 75mm nominal stroke back by up to 40mm, creating a usable travel window of 35-75mm. The adjuster sets the end-position and relies on the air cushion for deceleration, but it does not lock or hold the load without live air pressure.
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