The AirTAC AirTAC SAI200X400 ISO 15552 Cylinder | 200mm Bore is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 400mm 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 SAI200X400 is a double-acting ISO 15552 profile cylinder built for heavy-duty industrial automation. It delivers a substantial thrust of 15708 N on the extend stroke at 0.5 MPa, making it ideal for high-mass actuation. The extruded aluminum barrel omits tie rods, providing a clean profile while incorporating dual sensor grooves for CMSE or DMSE switches.
This specific configuration ships with a standard carbon steel piston rod and PT tapered port threads. For environments requiring extreme heat resistance, the standard TPU seals can be swapped for Viton (H) alternatives, ensuring reliability up to the +70 C limit without degradation.
| Model | AirTAC SAI200X400 ISO 15552 Cylinder | 200mm Bore |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 400 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. |
| ×400 | 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.
Provides the high clamping force necessary to hold large steel plates securely inside a hydraulic stamping press.
Actuates large robotic welding fixtures and heavy chassis components with precise 400 mm travel.
Pushes fully loaded pallets weighing several tons onto accumulation conveyors with smooth adjustable cushioning.
Select this 200 mm bore when an application demands more force than the 160 mm variant, which provides 10053 N at 0.5 MPa. The 400 mm stroke length is well within the 1500 mm maximum standard stroke for this bore, but any movement exceeding 300 mm requires careful management of side loads. Long, unsupported rods are highly susceptible to bending under lateral forces; utilizing an external guide rail or a dedicated guided cylinder will prevent premature rod-bearing wear.
Because the SAI200X400 is a double-acting pneumatic actuator, it relies on continuous air pressure to hold its position. If a machine layout requires the load to remain fixed during a pressure loss or exhaust event, the standard cylinder will drift. In such cases, specify the SAIL variant with an air-released lock, or integrate an external pilot-operated check valve. As a true ISO 15552 profile cylinder, it serves as a drop-in mounting replacement for other ISO 15552 interface actuators, utilizing a G3/4 port and compatible TC, LB, or CA mounting accessories.
Quick checklist
At a standard operating pressure of 0.5 MPa, the SAI200X400 generates 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
No, the standard SAI cylinder does not hold position without live air pressure and will drift if pressure is lost. For vertical load holding, use the SAIL variant with an air-released lock, or install an external rod lock.
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