
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 800mm 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.
The AirTAC SAIJ200X800-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 28274N at 0.9 MPa. Its 800 mm nominal stroke incorporates a 75 mm adjustment range, yielding a precise 725-800 mm usable travel window for exact end-position tuning during commissioning. The extruded aluminum barrel features sensor grooves on both sides, though this specific SKU omits the magnet.
This heavy-duty actuator utilizes an SUS420J2 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The rear adjusting screw acts purely as a mechanical stop to trim the retract distance without requiring cylinder replacement. It includes variable air cushions at both ends to manage kinetic energy, but neither the cushion nor the adjuster functions as a lock to hold the load without continuous air pressure.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 800 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.
| 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.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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.
Fine-tune the 725-800 mm travel window during heavy equipment commissioning to achieve precise mechanical endpoints without machining custom spacers.
Adapt automated material handling lines to different pallet sizes by dialing back the rear stopper up to 75 mm instead of changing the entire actuator.
Leverage the 28274N push force at 0.9 MPa for large-scale joining operations while using the adjustable end-position to compensate for tooling wear.
Selecting this 200 mm bore actuator provides a maximum push force of 3204 kgf at 1.0 MPa, stepping down from the 160 mm bore which yields 18095N at 0.9 MPa. The adjustable stroke is ideal for product-size changeovers on a line, allowing operators to dial in the 725-800 mm travel window rather than swapping fixed-stroke SAI cylinders. Because the rear screw is a travel stop and not a locking device, applications requiring true load-holding without live air must integrate an external rod lock or specify a SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 800 mm stroke, 75 mm adjustment, PT G3/4 port, and SUS420J2 rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR. Given the 800 mm stroke, the 40 mm rod diameter and M36x2 thread provide robustness, but an external guide is strongly recommended to prevent excessive side-loading on the unsupported piston rod.
Quick checklist
At 0.9 MPa operating pressure, this 200 mm bore cylinder provides a push force of 28274N and a pull force of 15080N. At the maximum 1.0 MPa pressure, the push force reaches 3204 kgf.
The rear adjuster acts as a mechanical stop that shortens the effective travel from the nominal 800 mm down to a minimum of 725 mm. It allows precise end-position tuning at commissioning but does not lock the load without live air pressure.
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