
The AirTAC SAI63 Standard Cylinder SAI63AX950S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 950mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI63X950-S is a double-acting ISO 15552 profile cylinder engineered for demanding linear motion tasks. Delivering a push force of 1559 N at 0.5 MPa, this non-standard 950 mm stroke variant is built to order for applications requiring extensive travel. The extruded aluminum barrel design omits tie-rods, providing a smooth exterior that simplifies mounting and cleaning.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in harsh environments. It is equipped with a magnet for use with CMSE and DMSE sensor switches, which seat neatly into the dual sensor grooves machined into both sides of the barrel. Threaded PT ports ensure a secure, tapered pneumatic connection.
| Model | Airtac SAI63 Standard Cylinder SAI63AX950S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 950 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×950 | 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.
Drives long-stroke pressing or forming operations where 1559 N of push force and 950 mm of travel are required to reach deep into machinery.
Actuates large pusher plates across wide conveyor belts, utilizing the 950 mm stroke to transfer heavy components between parallel processing lines.
Indexs pallets or tooling carriages over long distances in automated assembly cells, relying on the ISO 15552 mounting interface for seamless integration.
Selecting this 63 mm bore over the smaller 50 mm bore increases your 0.5 MPa push thrust from 982 N to 1559 N, while stepping up to the 80 mm bore yields 2513 N if your load demands further scaling. Because this model features a 950 mm stroke, which exceeds the 1500 mm maximum standard stroke for this bore, it is manufactured as a non-standard made-to-order unit.
At 950 mm of travel, the extended rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear and piston drift, implement an external guide rail or utilize a fully guided cylinder to absorb lateral forces. Note that the adjustable air cushions at both ends decelerate the piston near stroke end but do not lock the load; if position holding is required without live air pressure, consider the SAIL or BSAI locking variants.
Quick checklist
This 63 mm bore cylinder generates a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI series is dimensionally interchangeable per ISO 15552. You can drop it into existing setups utilizing standard FA, FB, LB, or TC mounting accessories without modifying the footprint.
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