The AirTAC AirTAC SAI200X155 ISO 15552 Cylinder | 200mm Bore is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 155mm 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 SAI200X155 is a robust double-acting profile cylinder engineered to the ISO 15552 standard. Delivering a massive 15708 N push force at just 0.5 MPa, it is built for heavy-duty industrial tasks. This unit features a 155 mm stroke, which is a non-standard made-to-order length tailored for specific machinery requirements. The extruded aluminum barrel design omits tie-rods, providing a clean exterior and integral mounting interfaces.
For demanding environments, the standard carbon steel piston rod offers high tensile strength, while the seals can be upgraded from standard TPU to Viton (H) for high-temperature applications up to 70 C. Although this specific configuration omits the magnet option, the barrel includes dual sensor grooves on both sides, allowing for easy integration of CMSE or DMSE switches if you later select a -S variant.
| Model | AirTAC SAI200X155 ISO 15552 Cylinder | 200mm Bore |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 155 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. |
| ×155 | 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 15708 N push force at 0.5 MPa required to actuate large mechanical stamping presses and form thick gauge steel components.
Drives heavy structural clamping jigs on automotive production lines where the custom 155 mm stroke precisely positions large chassis subframes.
Handles the extraction of bulky molded plastic parts from large injection machines, utilizing the robust carbon steel rod for heavy payload lifting.
Selecting this 200 mm bore cylinder is ideal when the 160 mm bore (14074 N push at 0.5 MPa) is insufficient for your load. Operating at 0.15-1.0 MPa, the SAI200X155 uses a G3/4 PT tapered port to handle the high air volume required for rapid cycling within its 30-500 mm/s speed range. Because the 155 mm stroke is a custom length, ensure your machinery accommodates the specific extended dimensions.
For applications requiring position holding without continuous air pressure, note that the standard SAI does not lock or hold the load upon pressure loss. You must integrate an external pilot-operated check valve or switch to the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variant. As a true ISO 15552 profile cylinder, it serves as a direct dimensional replacement for other ISO 15552 cylinders, matching the 200 mm bore, 155 mm stroke, G3/4 port, and standard mounting accessories.
Quick checklist
The SAI200X155 generates a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. At 0.7 MPa, the push force increases to 21991 N.
No, the standard SAI cylinder does not hold its position when air pressure is lost. For vertical load holding without live pressure, use the SAIL (air-released lock) variant or an external rod lock.
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